Psych 310 Final Exam Flash Cards 3

Decreases level of high frequency sounds. Occurs when high frequency sound located to one side. Doesn't occur for low frequency sound. Informs listener about location (left/right) or object.

Diff btwn sound source (distal stimulus) and sound entering ears. Frequencies are distorted.

Array of environmental sounds.

Process by which listener separates diff sounds from one another. Identify which object produced each sound.

Heuristics that allow listeners to separate sounds from one another.

Location, similarity in timbre/pitch, proximity in time, good continuation, and experience.

If object moves in continuous path, resulting sound should be continuous rather than disconnected.

Sounds that have same timbre or pitch are grouped together.

Perceptual system groups similar timbres together. If notes played slowly, tones of diff timbres increase in pitch. If notes played fast, decreasing pitch of timbre.

Auditory stream segregation can be demonstrated musically.

Sounds that occur rapidly are usu produced by the same source. When hi/low tones are played slowly, pitch seems to alternate. When hi/low tones are played rapidly, auditory stream segregation occurs.

Streams that remain constant or change smoothly are usu produced by the same source.

Top-down knowledge --> auditory grouping.

What happens when sound and visual source don't come from same location? Visual system "overrides" auditory system. Visual stimulus "captures" attention.

Graphemes and phonemes.