Topic 1: Intro to Perception Flashcards Preview

PSYC 317 Midterm 1 > Topic 1: Intro to Perception > Flashcards

Flashcards in Topic 1: Intro to Perception Deck (17)
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1
Q

sensation

perception

A
  • environmental cue and initial transduction in sense organs

- neural processing that follows sensation

2
Q

how are sensation and perception related

A

sensation always precedes perception

-both are always involved in the overall perceptual process

3
Q

perceptual process steps

A
stimulus in the environment
light is reflected and focused 
recpetor processes
neural processing
perception
recognition
action
4
Q

distal stimulus

A

item out in the world

5
Q

proximal stimulus

A

what arrives at sense organ
ex. the light at our eye
waves at our ear

6
Q

transduction

A

specialized cells change proximal stimulus into neural signal
still considered sensation
ex. rods and cones

7
Q

percept

A

product of perception

perception and recognition is in the mind not physical

8
Q

action and perception

A

action facilitates change in stimulus and perception of the environment

9
Q

cognitive processes (mind and brain)

A
cognitive process (perception and recognition) are NOT steps AFTER neural processes
-cognitive processes ARE neural processes
10
Q

knowledge

A

genes/evolution
LTM/learning
current cognitive and emotional state
environmental context

11
Q

principle of representation

A

our senses and our mind/brain dont have direct access to distal stimuli only to representations

12
Q

pipe example (representations)

A

light from pipe is not a pipe
neural activity transducted from the light is not a pipe
percept of a pipe in our mind is not a pipe

13
Q

principle of transformation

A

each step from distal stim to percept involves transformation/change of representations

14
Q

principle of transformation (pipe example)

A

light from a pipe is different than the pioe
receptor activity transduced from the light is different than the light
neural activity that follows the receptor activity is different than the receptor activity

15
Q

measuring the perceptual process

A

a) stimulus (proximal or distal)
b) physiology (processing and receptors)
c) action (behaviour)

16
Q

behavioural measures

A
method of limits
method of adjustment
method of constant stim
magnitude estimation
recognition testing
rxn time
17
Q

physiological measures

A
single unit recording
fmri
epsp
tms
lesion studies