Biological Motion

Question 1

biological motion

Answer 1

special case of motion perception

movement of a person or living organism

makes sense that we want a lot of info from this: friend or foe?

Question 2

object motion is processed in what pathway?

Answer 2

dorsal: where/how pathway

Question 3

complex object perception involve what cortical areas?

Answer 3

MT and MST

Question 4

algorithmic level

Answer 4

apply Gestalt principles (common fate and familiarity) to see or recognize specific movement patterns in the moving lights during exposure to point-light walker stimulus

Question 5

implementational level: what’s happening in the brain to cause this?

Answer 5

neurological studies show bio motion is processed by

SUPERIOR TEMPORAL SULCUS (dorsal pathway)

and

FUSIFORM FACE AREA

Question 6

point-light walker stimulus

Answer 6

bio motion made by placing lights in specific places on a person

Question 7

Extrastriate body area (EBA)

Answer 7

not involved in perceiving moving bodies, only necessary for perceiving static bodies

Question 8

another study implicating superior temporal sulcus (STS) in biological motion

Answer 8

used a TMS (transcranial magnetic stimulation) to create temporary interference to STS

results: this caused a decrease in the subject’s ability to detect bio motion = suggests that STS is necessary in processing bio motion info

when they did TMS to MT it had no affect