Human Psychology Quiz

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Human Psychology Quiz - Quiz

Are you a person who understands psychology well? Take this human psychology quiz and see how much you know. Human psychology is something that needs a lot of time to understand. If you have understood it and are sure about that, try out this quiz. This quiz will help you check your psychology skills and enhance them. Go for it, and try to get a perfect score. You can share the quiz with others also, who like studying psychology.


Questions and Answers
  • 1. 

    Psychology is

    • A.

      The study of the mind

    • B.

      The scientific study of human behavior

    • C.

      The study of the social interactions between people

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    Psychology encompasses the study of the mind, which involves understanding cognitive processes, emotions, and mental functions. It also involves the scientific study of human behavior, examining why people behave the way they do and how they interact with their environment. Additionally, psychology explores the social interactions between individuals, examining how people influence and are influenced by others in various social contexts. Therefore, the correct answer is "all of the above" as psychology encompasses the study of the mind, human behavior, and social interactions.

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  • 2. 

    The focal topic of the psychodynamic paradigm is:

    • A.

      Dreams

    • B.

      Mental Illness

    • C.

      The biological processes of the mind

    • D.

      Behavioral interactions

    Correct Answer
    B. Mental Illness
    Explanation
    The psychodynamic paradigm focuses primarily on understanding and treating mental illness. This perspective emphasizes the role of unconscious processes, early childhood experiences, and unresolved conflicts in shaping an individual's thoughts, emotions, and behaviors. It suggests that mental illness is often rooted in these unconscious dynamics and can be alleviated through psychoanalysis or other forms of psychodynamic therapy. This approach aims to uncover and address the underlying causes of mental illness, rather than simply treating the symptoms.

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  • 3. 

    Which one of the following concepts does not match the suggested paradigm?

    • A.

      Transcendence - Humanistic paradigm

    • B.

      Memory stores - Cognitive paradigm

    • C.

      Defense Mechanisms - Psychodynamic paradigm

    • D.

      Self-actualization - Behavioral paradigm

    Correct Answer
    D. Self-actualization - Behavioral paradigm
    Explanation
    Self-actualization does not match the behavioral paradigm because the behavioral paradigm focuses on observable behaviors and external stimuli, while self-actualization is a concept from humanistic psychology that emphasizes personal growth, fulfillment, and the realization of one's potential. The behavioral paradigm is more concerned with studying and modifying behaviors through conditioning and reinforcement, whereas self-actualization is more aligned with the humanistic paradigm's emphasis on individual experience, self-awareness, and personal development.

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  • 4. 

    The metaphor associated with the Cognitive psychology paradigm is:

    • A.

      Growth

    • B.

      Mental processing is like a programmed computer

    • C.

      Blank slate or lump of clay

    • D.

      None of the above

    Correct Answer
    B. Mental processing is like a programmed computer
    Explanation
    The metaphor associated with the Cognitive psychology paradigm is that mental processing is like a programmed computer. This means that just like a computer follows a set of instructions to process information, our minds also follow a systematic process to perceive, interpret, and respond to stimuli. This metaphor suggests that cognitive processes are structured and organized, similar to how a computer operates based on pre-programmed algorithms. It emphasizes the idea that our thinking and problem-solving abilities can be understood and studied through the lens of information processing.

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  • 5. 

    Which of the following statements is correct:

    • A.

      A correlation of R = -0.9 is a weak correlation.

    • B.

      Causality is indicated by a very high correlation.

    • C.

      A correlation indicates only the strength of a relationship.

    • D.

      None of the above

    Correct Answer
    D. None of the above
    Explanation
    The given answer is "None of the above" because none of the statements accurately describe the concept of correlation. A correlation of R = -0.9 is actually a strong negative correlation, not a weak correlation. Causality cannot be determined solely based on a high correlation, as correlation does not imply causation. Lastly, a correlation indicates both the strength and direction of a relationship, not just the strength.

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  • 6. 

    Under the Newtonian model of research, theories should be

    • A.

      Repeatable

    • B.

      Unbiased

    • C.

      General

    • D.

      All of the above

    Correct Answer
    C. General
    Explanation
    The Newtonian model of research suggests that theories should be general. This means that they should be applicable to a wide range of situations and not limited to specific cases. General theories have the ability to explain and predict phenomena across different contexts, making them more robust and reliable. By being general, theories can also provide a foundation for further research and the development of new knowledge.

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  • 7. 

    Which lobe of the brain is primarily involved in visual processing?

    • A.

      Occipital

    • B.

      Parietal

    • C.

      Frontal

    • D.

      Temporal

    Correct Answer
    A. Occipital
    Explanation
    The occipital lobe is primarily involved in visual processing. It is located at the back of the brain and is responsible for processing visual information received from the eyes. This lobe contains the primary visual cortex, which plays a crucial role in interpreting and making sense of visual stimuli. It helps in recognizing shapes, colors, and objects, as well as in perceiving motion and depth. The occipital lobe also works in conjunction with other brain regions to integrate visual information with other sensory inputs and to form a complete perception of the surrounding environment.

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  • 8. 

    Which brain characteristic is responsible for the relatively high intelligence of humans?

    • A.

      Size of the brain

    • B.

      The high relative weight of our brain in terms of body size.

    • C.

      The fact that human brain has two hemispheres.

    • D.

      The convoluted surface of the brain results in a greater surface area.

    Correct Answer
    D. The convoluted surface of the brain results in a greater surface area.
    Explanation
    The convoluted surface of the brain results in a greater surface area. This increased surface area allows for more neurons to be packed into the brain, which in turn allows for more connections and processing power. This increased complexity and connectivity of the brain is believed to be responsible for the relatively high intelligence of humans.

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  • 9. 

    The two major divisions of the peripheral nervous system are:

    • A.

      Sympathetic and parasympathetic

    • B.

      Somatic and autonomic

    • C.

      Brain and spinal cord

    • D.

      Nervous system and central nervous system

    Correct Answer
    B. Somatic and autonomic
    Explanation
    The correct answer is somatic and autonomic. The peripheral nervous system is divided into two major divisions: the somatic nervous system and the autonomic nervous system. The somatic nervous system controls voluntary movements and transmits sensory information to the central nervous system. The autonomic nervous system controls involuntary actions and regulates internal body functions such as heart rate, digestion, and breathing.

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  • 10. 

    The limbic system is involved with

    • A.

      Recognition of auditory stimuli

    • B.

      Processing pressure, pain, and temperature

    • C.

      Regulation of breathing and muscle movement

    • D.

      Memory and emotional processing

    Correct Answer
    D. Memory and emotional processing
    Explanation
    The limbic system is responsible for memory and emotional processing. It plays a crucial role in forming and storing memories, as well as regulating emotions. This system includes structures such as the hippocampus, which is involved in memory formation, and the amygdala, which is responsible for processing emotions. Therefore, the limbic system is primarily associated with memory and emotional processing.

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  • 11. 

    Glial cells

    • A.

      Provide physical structure

    • B.

      Send signals toward neurons

    • C.

      Send signals away from neurons

    • D.

      Tell the neurons what to do.

    Correct Answer
    A. Provide physical structure
    Explanation
    Glial cells are a type of non-neuronal cells in the nervous system that provide physical structure and support to neurons. They play a crucial role in maintaining the integrity and stability of the nervous system by surrounding and protecting neurons. Glial cells also help in regulating the extracellular environment and providing nutrients to neurons. While neurons are responsible for sending and receiving signals, glial cells primarily provide structural support rather than directly transmitting signals.

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  • 12. 

    Problems when using lesions to discover the functions of various brain areas include:

    • A.

      It uses a convenience sample.

    • B.

      Injury is often extended to multiple areas.

    • C.

      It doesn't take into account that the brain is a network.

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    When using lesions to discover the functions of various brain areas, there are several problems that arise. Firstly, the method often relies on a convenience sample, which may not accurately represent the entire population. Secondly, the injury caused by lesions can extend to multiple areas, making it difficult to pinpoint the exact function of a specific brain area. Lastly, this approach fails to consider that the brain functions as a network, with different areas interconnected and influencing each other. Therefore, all of the above statements are correct in highlighting the limitations and challenges associated with using lesions to study brain functions.

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  • 13. 

    Which of the following brain imaging techniques is NOT based on correlative data?

    • A.

      Event-related Potentials (ERP)

    • B.

      Positron Emission Tomography (PET)

    • C.

      Transcranial Magnetic Stimulation (TMS)

    • D.

      Functional Magnetic Resonance Imaging (MRI)

    Correct Answer
    C. Transcranial Magnetic Stimulation (TMS)
    Explanation
    Transcranial Magnetic Stimulation (TMS) is not based on correlative data because it directly stimulates the brain using magnetic fields, rather than measuring brain activity or blood flow like the other techniques mentioned. TMS involves applying a magnetic field to a specific area of the brain, which can temporarily disrupt or enhance neural activity in that region. This technique is often used in research to investigate the causal relationship between brain activity and behavior, rather than simply correlating brain activity with specific tasks or conditions.

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  • 14. 

    Over the past two weeks, Tommy has acted up at the checkouts, and his mother has bought him chocolate to quieten him down. Tommy now has a tantrum every time he goes shopping with his mother. Tommy has learned to maintain this tantrum behavior through:

    • A.

      Positive reinforcement

    • B.

      Negative reinforcement

    • C.

      Punishment

    • D.

      Classical conditioning

    Correct Answer
    A. Positive reinforcement
    Explanation
    Tommy has learned to maintain his tantrum behavior through positive reinforcement. Positive reinforcement involves the addition of a desirable stimulus to increase the likelihood of a behavior being repeated. In this case, Tommy's mother buying him chocolate when he acts up at the checkouts is the desirable stimulus that is added, which reinforces his tantrum behavior. As a result, Tommy continues to have tantrums every time he goes shopping with his mother because he has learned that it leads to a reward (chocolate).

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  • 15. 

    One limitation of sleep studies is that there is no physiological measure for:

    • A.

      Eye movement

    • B.

      Brain waves

    • C.

      Dream patterns

    • D.

      Blood pressure

    Correct Answer
    C. Dream patterns
    Explanation
    Sleep studies measure various physiological parameters such as eye movement, brain waves, and blood pressure to understand sleep patterns and disorders. However, dream patterns cannot be directly measured or observed physiologically. Dreams are subjective experiences that occur during the REM (rapid eye movement) stage of sleep, and individuals typically report their dreams after waking up. While sleep studies can indirectly infer dream activity through brain wave patterns and eye movements, there is no direct physiological measure for dream content or patterns.

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  • 16. 

    If a researcher wants to know if bananas increase people's ability to learn, their independent and dependent variables may be:

    • A.

      Recall of information; banana consumption (bananas eaten vs. no bananas eaten)

    • B.

      Banana consumption (bananas eaten vs. no bananas eaten); recall of information

    • C.

      Size of banana (large vs. small); work output

    • D.

      Amount of learning (high vs. low); recall of information

    Correct Answer
    B. Banana consumption (bananas eaten vs. no bananas eaten); recall of information
    Explanation
    The researcher wants to investigate if bananas increase people's ability to learn. Therefore, the independent variable is banana consumption, specifically whether participants eat bananas or not. The dependent variable is recall of information, which measures the participants' ability to remember and retrieve learned information. By comparing the recall of information between participants who ate bananas and those who did not, the researcher can determine if banana consumption has an effect on learning ability.

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  • 17. 

    Your ability to sing the national anthem is evidence that this information is stored in yours?

    • A.

      Sensory memory

    • B.

      Short term memory

    • C.

      Long term memory

    • D.

      Implicit memory

    Correct Answer
    D. Implicit memory
    Explanation
    Implicit memory refers to the unconscious or automatic retention and retrieval of information. The ability to sing the national anthem without consciously thinking about the lyrics or melody suggests that this information is stored in implicit memory. Implicit memory is responsible for our ability to perform tasks or recall information without conscious effort, such as riding a bike or remembering how to tie shoelaces. Therefore, the correct answer is implicit memory.

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  • 18. 

    Research evidence indicates that iconic memory has a ___ capacity and a ___ duration than echoic memory.

    • A.

      Lesser; shorter

    • B.

      Greater; longer

    • C.

      Lesser; longer

    • D.

      Greater; shorter

    Correct Answer
    D. Greater; shorter
    Explanation
    Research evidence suggests that iconic memory, which refers to visual sensory memory, has a greater capacity compared to echoic memory, which pertains to auditory sensory memory. However, iconic memory has a shorter duration, meaning that the visual information stored in iconic memory fades more quickly compared to the auditory information stored in echoic memory.

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  • 19. 

    The Yerkes Dodson law is that.

    • A.

      We perform best at an intermediate level of arousal.

    • B.

      We perform best at high arousal.

    • C.

      We perform best at low arousal.

    • D.

      We perform best at varying arousal.

    Correct Answer
    A. We perform best at an intermediate level of arousal.
    Explanation
    The Yerkes-Dodson law states that our performance is optimal at an intermediate level of arousal. This means that when our arousal level is too low, we may lack motivation and energy, resulting in poor performance. On the other hand, when our arousal level is too high, we may become overly anxious or stressed, leading to decreased performance. Therefore, finding a balance in arousal level is crucial for achieving optimal performance.

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  • 20. 

    Which theory of color vision suggests that there are three pairs of neurons?

    • A.

      Hering's Opponent Process Theory

    • B.

      Binocular Depth Perception Theory

    • C.

      Helmholts Trichromatic Theory

    • D.

      Weber's Colour Perception Theory

    Correct Answer
    A. Hering's Opponent Process Theory
    Explanation
    Hering's Opponent Process Theory suggests that there are three pairs of neurons responsible for color vision. These pairs of neurons work in opposition to each other, with one member of the pair being stimulated by one color and inhibited by its opposite color. The three pairs of neurons are red-green, blue-yellow, and black-white. This theory explains how we perceive color and how certain colors appear to be opposites of each other.

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  • 21. 

    In signal detection theory, a 'hit' occurs when:

    • A.

      A stimulus is presented, but a participant is unable to detect it.

    • B.

      A stimulus is presented, and a participant correctly detects it.

    • C.

      Two stimuli are presented, and a participant can discriminate between them.

    • D.

      A stimulus is not presented, and a participant does not report detecting it.

    Correct Answer
    B. A stimulus is presented, and a participant correctly detects it.
    Explanation
    In signal detection theory, a 'hit' occurs when a stimulus is presented, and a participant correctly detects it. This means that the participant accurately perceives and identifies the stimulus that is presented to them. It is important to distinguish hits from false alarms, where a participant may report detecting a stimulus even when it is not present. A hit reflects the participant's ability to correctly identify the presence of a stimulus.

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  • 22. 

    Which of the following is not found within the Peripheral Nervous System (PNS)

    • A.

      The central sulcus

    • B.

      The sympathetic nervous system

    • C.

      The parasympathetic nervous system

    • D.

      The somatic division

    Correct Answer
    A. The central sulcus
    Explanation
    The central sulcus is not found within the Peripheral Nervous System (PNS) because it is a prominent fissure in the cerebral cortex of the brain that separates the frontal and parietal lobes. The PNS consists of nerves and ganglia outside of the brain and spinal cord, including the sympathetic and parasympathetic nervous systems, as well as the somatic division. The central sulcus is a structural feature of the brain and is not part of the peripheral nerves and ganglia.

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  • 23. 

    Jeff's car is leaking water from a radiator hose. Plugging the hole with chewing gum until getting to the garage for repairs is showing signs of overcoming:

    • A.

      The primacy effect

    • B.

      Bottom-up processing

    • C.

      Functional fixedness

    • D.

      Late selection theory

    Correct Answer
    C. Functional fixedness
    Explanation
    Functional fixedness refers to the tendency to only see objects or tools in their traditional or intended uses, and not being able to think creatively about alternative uses. In this scenario, plugging the hole in the radiator hose with chewing gum demonstrates functional fixedness because Jeff is using an unconventional tool (chewing gum) to temporarily fix a problem (leaking water) until he can get to the garage for proper repairs. This shows that Jeff is able to think outside the box and overcome the limitations of traditional tool usage.

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  • 24. 

    Memory for general knowledge is known as:

    • A.

      Semantic memory

    • B.

      Short-term memory

    • C.

      Episodic memory

    • D.

      Encyclopedic memory

    Correct Answer
    A. Semantic memory
    Explanation
    Semantic memory refers to the long-term memory system that stores general knowledge and facts about the world. It is responsible for storing information such as vocabulary, concepts, and factual information that is not tied to a specific personal experience or event. This type of memory allows individuals to recall and use general knowledge in various contexts and is essential for tasks such as problem-solving, decision-making, and understanding language. Therefore, semantic memory is the most appropriate term to describe memory for general knowledge.

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  • 25. 

    The concepts of conditioning, reinforcement, and shaping are associated with which prominent paradigm?

    • A.

      Behavioral

    • B.

      Cognitive

    • C.

      Biological

    • D.

      Humanistic

    Correct Answer
    A. Behavioral
    Explanation
    The concepts of conditioning, reinforcement, and shaping are associated with the behavioral paradigm. This paradigm focuses on how behavior is learned and shaped through interactions with the environment. Conditioning refers to the process of learning associations between stimuli and responses, while reinforcement involves the use of rewards or punishments to strengthen or weaken behavior. Shaping is a technique used to gradually shape complex behaviors by reinforcing successive approximations. These concepts are central to the behavioral paradigm, which emphasizes observable behavior and the role of the environment in shaping it.

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  • 26. 

    You are walking on your way to university. Usually, you are in a rush, but today you walk and feel the way your feet land on the pavement - first the heel, then your toes. You notice the weight of each leg when you lift one leg and place it on the ground. You then notice how your muscles tense in your thighs, and your heart rate slightly increases as you go up a steep incline. You try to notice every sensation as you are walking. For you, at this moment, this process would be

    • A.

      Attentional

    • B.

      Automatic

    • C.

      Normal waking consciousness

    • D.

      All of the above

    Correct Answer
    A. Attentional
    Explanation
    The process described in the scenario involves paying attention to various sensations and being aware of them consciously. This indicates that the process is attentional, as the individual is actively focusing their attention on their walking experience. It is not automatic because it requires conscious effort and attention. Normal waking consciousness refers to the state of being awake and aware, which is applicable in this scenario as the individual is consciously experiencing their surroundings. Therefore, the correct answer is attentional.

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  • 27. 

    Spontaneous recovery of a CR is unlikely to occur if the subject is:

    • A.

      Reinforced for responding

    • B.

      A rat

    • C.

      Placed in the same situation

    • D.

      Placed in a different situation

    Correct Answer
    D. Placed in a different situation
    Explanation
    Spontaneous recovery refers to the reappearance of a conditioned response (CR) after a period of extinction. In this case, the question is asking about factors that may affect the likelihood of spontaneous recovery. The correct answer suggests that placing the subject in a different situation makes spontaneous recovery less likely. This is because the original context or situation in which the conditioning occurred plays a significant role in triggering the CR. When the subject is placed in a different situation, the contextual cues that originally elicited the CR are absent, reducing the chances of spontaneous recovery.

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  • 28. 

    Which reinforcement schedule is the most resistant to extinction?

    • A.

      Continuous

    • B.

      Fixed

    • C.

      Variable

    • D.

      Interval

    Correct Answer
    C. Variable
    Explanation
    Variable reinforcement schedule is the most resistant to extinction because it involves providing rewards or reinforcements at unpredictable intervals. This unpredictability creates a sense of uncertainty and keeps the individual motivated to continue the desired behavior, even when the reinforcement is not immediately received. This makes it difficult for the behavior to be extinguished because the individual never knows when they will be rewarded, leading to a higher level of persistence in performing the behavior.

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  • 29. 

    Cathy is not known for her outgoing nature. If she was to consume three cans of coke prior to sitting her PSYCH1020 exam, what is this likely to do to her performance?

    • A.

      Improve

    • B.

      Impair

    • C.

      Nothing

    • D.

      Increase due to her desire to relieve herself

    Correct Answer
    B. Impair
    Explanation
    Consuming three cans of coke prior to the exam is likely to impair Cathy's performance. This is because coke contains caffeine, which is a stimulant that can increase alertness and energy levels, but it can also lead to restlessness, nervousness, and difficulty focusing. Since Cathy is not known for her outgoing nature, it is more likely that the caffeine in the coke will have a negative effect on her, making it harder for her to concentrate and perform well on the exam.

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  • 30. 

    Hyperpolarisation of the membrane refers to:

    • A.

      Inhibitory effects of the neuron make the receiving neuron less likely to trigger an action potential

    • B.

      Excitatory effects of the neuron result in a greater likelihood of an action potential

    • C.

      The release of acetylcholine

    • D.

      None of the above

    Correct Answer
    A. Inhibitory effects of the neuron make the receiving neuron less likely to trigger an action potential
    Explanation
    Hyperpolarisation of the membrane refers to the inhibitory effects of the neuron, which make the receiving neuron less likely to trigger an action potential. This occurs when the membrane potential becomes more negative than the resting potential, making it more difficult for the neuron to reach the threshold for firing an action potential. This inhibitory effect is crucial for regulating the excitability of the nervous system and maintaining a balance between excitation and inhibition.

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  • 31. 

    Three essential factors for predicting and understanding any drug-related alterations to consciousness are:

    • A.

      The quantity of the drug, the drug dose, and ingestion method

    • B.

      The drug, the mindset/expectations of the drug taker, and the setting/environment they are in at the time

    • C.

      The expectations and personality of the drug taker

    • D.

      The taker's physiology, the social environment, and their expectations

    Correct Answer
    B. The drug, the mindset/expectations of the drug taker, and the setting/environment they are in at the time
    Explanation
    The answer is the drug, the mindset/expectations of the drug taker, and the setting/environment they are in at the time. These three factors are essential for predicting and understanding any drug-related alterations to consciousness. The drug itself plays a crucial role in determining the effects on consciousness. The mindset and expectations of the drug taker can influence their perception and experience while under the influence. The setting and environment in which the drug is taken can also impact the individual's experience, as external factors can interact with the drug's effects.

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  • 32. 

    Wendy has been sleeping for approximately 45 minutes. Delta waves dominate her brain wave activity, and her roommate is having difficulty waking her up. Most likely, Wendy is in:

    • A.

      Stage 1 sleep

    • B.

      Stage 2 sleep

    • C.

      REM sleep

    • D.

      Stage 4 sleep

    Correct Answer
    D. Stage 4 sleep
    Explanation
    During Stage 4 sleep, also known as deep sleep, the brain produces slow delta waves. This stage is characterized by deep relaxation, decreased heart rate, and decreased muscle activity. It is the most difficult stage to wake someone up from, which explains why Wendy's roommate is having difficulty waking her up after 45 minutes of sleep.

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  • 33. 

    Damage to the left side of the frontal lobe is most likely to result in:

    • A.

      Receptive aphasia

    • B.

      Alzheimer's disease

    • C.

      The loss of sight

    • D.

      Productive aphasia

    Correct Answer
    D. Productive aphasia
    Explanation
    Damage to the left side of the frontal lobe is most likely to result in productive aphasia. This condition is characterized by the inability to comprehend speech and articulate words fluently. Individuals with productive aphasia may produce speech that is fluent but lacks meaningful content, with frequent use of neologisms and circumlocutions. This type of aphasia is often associated with damage to Broca's area, which is located in the left frontal lobe and is responsible for language production.

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  • 34. 

    The fact that we can't perceive "greenish-red" represents a problem with

    • A.

      Sensory processing

    • B.

      The opponent process theory of color vision

    • C.

      The trichromatic theory of color vision

    • D.

      Rods and cones

    Correct Answer
    C. The trichromatic theory of color vision
    Explanation
    The trichromatic theory of color vision suggests that our perception of color is based on the activity of three types of color receptors in our eyes, known as cones. Each cone is sensitive to a different range of wavelengths, allowing us to perceive a wide range of colors. However, the fact that we can't perceive "greenish-red" suggests that there may be limitations to this theory, as it implies that there are only three primary colors that can be perceived.

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  • 35. 

    Early selection theory is known as a ___ model, while Late selection theory is known as a ___ model:

    • A.

      Parallel processing; serial processing

    • B.

      Attentional processing; automatic processing

    • C.

      Serial processing; parallel processing

    • D.

      Automatic processing; attentional processing

    Correct Answer
    C. Serial processing; parallel processing
    Explanation
    Early selection theory suggests that during the process of perception, attention is used to select relevant information from the environment before it is fully processed. This theory is known as a serial processing model because it suggests that information is processed in a sequential manner, with only selected information being processed further. On the other hand, late selection theory proposes that all incoming information is processed to some extent before attention is used to select relevant information. This theory is known as a parallel processing model because it suggests that multiple stimuli are processed simultaneously.

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  • 36. 

    When ___ postsynaptic potential occurs, the postsynaptic neuron is more likely to produce an action potential.

    • A.

      An excitatory

    • B.

      An inhibitory

    • C.

      A myelinated

    • D.

      A terminal

    Correct Answer
    A. An excitatory
    Explanation
    An excitatory postsynaptic potential (EPSP) occurs when the neurotransmitters released from the presynaptic neuron bind to receptors on the postsynaptic neuron, causing depolarization. This depolarization brings the membrane potential of the postsynaptic neuron closer to the threshold for generating an action potential. Therefore, when an EPSP occurs, the postsynaptic neuron is more likely to produce an action potential.

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  • 37. 

    Glands that secrete their chemicals directly into the bloodstream belong to the ___ system.

    • A.

      Limbic

    • B.

      Nervous

    • C.

      Somatic

    • D.

      Endocrine

    Correct Answer
    D. Endocrine
    Explanation
    The glands that secrete their chemicals directly into the bloodstream belong to the endocrine system. The endocrine system is responsible for producing hormones that regulate various bodily functions and maintain homeostasis. These glands, such as the pituitary gland, thyroid gland, and adrenal glands, release hormones directly into the bloodstream, allowing them to be transported to target organs and tissues throughout the body. This enables the hormones to exert their effects on specific cells and regulate various physiological processes.

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  • 38. 

    Which of the following statements about the action potential is NOT true:

    • A.

      Action potentials operate according to an all-or-none principle.

    • B.

      Action potentials are slowed by the presence of the myelin sheath on the axon.

    • C.

      Action potentials involve both potassium and sodium.

    • D.

      All of the above

    Correct Answer
    B. Action potentials are slowed by the presence of the myelin sheath on the axon.
    Explanation
    The myelin sheath on the axon actually speeds up the action potential, rather than slowing it down. The myelin sheath acts as an insulating layer, allowing the action potential to jump from one node of Ranvier to the next, which increases the speed of conduction. Therefore, the statement "Action potentials are slowed by the presence of the myelin sheath on the axon" is not true.

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  • 39. 

    The characteristic of light that determines hue is the:

    • A.

      Ganglion

    • B.

      Brightness

    • C.

      Amplitude

    • D.

      Wavelength

    Correct Answer
    D. Wavelength
    Explanation
    The characteristic of light that determines hue is the wavelength. Hue refers to the specific color of light, and it is determined by the wavelength of the light waves. Different wavelengths correspond to different colors in the visible spectrum. Therefore, the wavelength of light is what determines the hue we perceive.

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  • 40. 

    Under conditions of poor lighting, the type of cell that is most helpful in vision is the:

    • A.

      Corneal

    • B.

      Ganglion

    • C.

      Cone

    • D.

      Rod

    Correct Answer
    D. Rod
    Explanation
    In conditions of poor lighting, the type of cell that is most helpful in vision is the rod. Rod cells are highly sensitive to light and are responsible for vision in low-light conditions. They are primarily located in the peripheral retina and are responsible for black and white vision. Cones, on the other hand, are responsible for color vision and function best in bright lighting conditions. Therefore, in poor lighting, the rod cells play a crucial role in helping us see.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Feb 09, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 16, 2010
    Quiz Created by
    Emmachester33
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