Perception MCQ Quiz: Psychology Trivia!
(149).jpg "Perception MCQ Quiz: Psychology Trivia!")
Perception is a state of mind that makes someone takes a point of understanding of a situation. Sometimes, the very first experience may either create the right perception or the wrong one. Find it all below.
- 1.Which of the following words does NOT describe perception
- A.
A passive process
- B.
A psychological process
- C.
No direct contact with the physical world
- D.
Using sense organs
- 2.What percentage of the cortex are visual brain areas?
- A.
50%
- B.
10%
- C.
30%
- D.
2%
- 3.Which of the sensory modalities is the most studied/understood?
- A.
Vision
- B.
Touch
- C.
Taste/Smell
- D.
They are all heavily studied
- 4.Psychophysics has a central concept of measuring the ... of sensory systems?
- A.
All of these
- B.
Detection limits
- C.
Discrimination limits
- D.
Thresholds
- 5.Measuring detection thresholds, a favoured practice of Fechner, can be carried out by three methods, which of the following is NOT one of them?
- A.
Absolute method
- B.
Limit method
- C.
Adjustment method
- D.
Constant stimuli method
- 6.What percentage correct performance is necessary in psychophysical trials to determine a threshold of perception (discriminatory or detection)
- A.
75%
- B.
90%
- C.
50%
- D.
67%
- 7.It is possible during a psychophysical trial that the SAME stimulus strength will cause different answers from the same participant, what offers an explanation as to why our threshold detections are not discrete?
- A.
Signal detection theory
- B.
Noisy wiring theory
- C.
Stimulus discrimination theory
- D.
Judgement bias theory
- 8.Which of the following is incorrect about neurophysiological single cell recording in vision?
- A.
It is intracellular
- B.
It uses a microelectrode that is surgically placed into a visual system area of study
- C.
It records next to the axon of a cell to pick up action potentials from a specific cell
- D.
It is reductionist
- 9.What type of graph is collected from a neurophysiological experiment of vision?
- A.
Histogram (PSTH)
- B.
Line graph (PSTLG)
- C.
Scatter graph (PSTSG)
- D.
Logarithm graph (PSTL)
- 10.Thresholds can NOT be calculated from which of the following?
- A.
All of these can measure thresholds
- B.
Neurometric function (single cell)
- C.
Psychometric function (detection)
- D.
Psychometric function (discrimination)
- 11.Hubel and Wiesel (1959) showed monkeys a bar in various orientations and made what conclusion about neurons?
- A.
They act as feature detectors
- B.
Animal studies should not be applied to humans
- C.
Brain areas respond to different bar orientations
- D.
Receptive fields are crucial for object recognition
- 12.Of the functional imaging techniques, which one requires radioactive tagging?
- A.
PET
- B.
FMRI
- C.
EEG
- D.
MEG
- 13.Changes in luminance occurs at many different spatial scales, what change in luminance is responsible for FINE detail?
- A.
Abrupt (sharp) changes
- B.
Medium changes
- C.
Smooth changes
- D.
Course changes
- 14.How does the brain represent the information in Visual images?
- A.
Sinusoidal gratings
- B.
Luminance changes
- C.
Wavelength changes
- D.
Pixel equivalents
- 15.Which of the following best describes a sinusoidal grating?
- A.
Luminance varying across space
- B.
Luminance varying across time and space
- C.
Luminance varying across time
- D.
Luminance varying across 1 dimension
- 16.There are 4 defining characteristics of Sinusoidal Gratings, which of the following is NOT one of them?
- A.
Position
- B.
Spatial Frequency
- C.
Orientation
- D.
Contrast
- 17.What is the name for the process where by you decompose any image into its unique set of sinusoidal gratings?
- A.
Fourier Analysis
- B.
Fourier Synthesis
- C.
Fourier Disintegration
- D.
Fourier Dissolution
- 18.What is the name for measuring the visual system's response to simple sinusoidal grating patterns?
- A.
Modulation transfer function
- B.
Spatial frequency function
- C.
Visual acuity function
- D.
Complex image function
- 19.The Contrast Sensitivity function shows ... ?
- A.
The entire visual system's sensitivity to gratings
- B.
A single cell's sensitivity to gratings
- C.
The entire visual system's sensitivity to contrast changes
- D.
A single cell's sensitivity to contrast changes
- 20.Which of the following is an explanation for why there is a drop off in sensitivity to high spatial frequency gratings in the human CSF?
- A.
Optical imperfections of the eye
- B.
Receptive fields of ganglion cells do not respond to gratings with too high spatial frequency
- C.
Both of these are correct
- D.
Both of these explain insensitivity to LOW spatial frequency gratings
- 21.The human Contrast Sensitivity Function shows that humans are most sensitive to sinusoidal gratings with what spatial frequencies?
- A.
Mid-range
- B.
High
- C.
Low
- D.
High and Low
- 22.Under which luminance level does our system respond to the highest spatial frequencies?
- A.
Photopic
- B.
Mesopic
- C.
Scotopic
- D.
Lumopic
- 23.When flickering gratings with a high temporal frequency are used then the CSF sensitivity to low spatial frequencies is drastically improved, what is suspected to be responsible for this?
- A.
Mangocellular cells are 10 times more sensitive
- B.
Parvocellular cells are 10 times more sensitive
- C.
Low spatial frequencies become higher when flickering
- D.
Higher spatial frequencies become lower when flickering
- 24.Optometrists use very high contrast stimuli to assess visual acuity in eye tests, which of the following is not a common eye test?
- A.
Grayson letter discrimination
- B.
Snellen eye chart
- C.
Landholt rings
- D.
Parallel bars
- 25.What is visual acuity measuring on the CSF
- A.
The highest spatial frequency grating you can detect
- B.
The lowest spatial frequency grating you can detect
- C.
The limits of our spatial frequency grating detection
- D.
The complete range of the spatial frequency gratings we can detect
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