week 11

Question 1

general intelligence tests are more predictive of performacne in what phase?

Answer 1

1

Question 2

perceptual-speed abilities are more prediucitive of performance in phase??

Answer 2

2

Question 3

psychomotor abilities are more predictive in phase ?

Answer 3

3

Question 4

shams et 2000

Answer 4

discovered the sound-induced flash illusion

Question 5

not everyone has the same temporal binding window (TBW)

Answer 5

there are some individual variations, and individual differences in temporal binding

Question 6

does variation exist in individual experiences with the sound-induced flash illusion

Answer 6

yes, but they may be too small at the neurophysiological level

Question 7

what can we use to understand perceptual thresholds

Answer 7

behavioral methods
- asking people when the flash then measuring that

Question 8

the temporal binding window

Answer 8

• varies between participants
• can be determined experimentally using psychophysics (operant conditioning)

Question 9

how could you determine the perceptual threshold for an individual

Answer 9

“percecing them as 2 different events”
- stair case method
- find out what the minimum present the 2 stimuli at different time until they get the time they know there is 2 stimuli
- if the person knows there is 2 stimuli, switch up the order of times

Question 10

on a psychometric curve - stimulus intensity at threshold

Answer 10

• point at which ppl at 50%
• able to detect stimulus (its measuring threshold of when 50% of ppl can detect the stimulus)

Question 11

signal detection theory- determing thresholds how?

Answer 11

variablitiy in detection thresholds (and binding windows) can be determined mathecmatically

Question 12

gaussian distribution

Answer 12

how variability in detection thresholds is determined

Question 13

about gaussian distribution

Answer 13

noise on one side signal+noise on the other
- need to seperate signal and noise
- can help figure out how long to detect signal

Question 14

to detect a stimulus, individuals select a crterion

Answer 14

if the perceived intentsity is greater than the criterion
if the perceived intensity is less than the criterion

Question 15

if the perceived intensity is greater than the criterion

Answer 15

stimulus is detected

Question 16

if the perceived intensity is less than the criterion

Answer 16

stimulus is undetected

Question 17

possible outcomes

Answer 17

hit
false alarm
correct rejections
miss

Question 18

hit

Answer 18

correct response

Question 19

false alarm

Answer 19

incorrect yes
- we say a signal is there but its actually just noise
- no signal

Question 20

correct rejection

Answer 20

correct no
- no presence of stimulus

Question 21

miss

Answer 21

incorrect no
- signal is presented but just noise is identified

Question 22

individual difference in sensory processing

Answer 22

• interested in variation sensory thresholds

Question 23

what is d-prime

Answer 23

a measure of sensitivity and estimates the standardized difference between the mean of 2 distributions

Question 24

%hits

Answer 24

proportions of hits (hits/total presentations )

Question 25

%false alarms

Answer 25

proportion of false alarms (flase alarms/non-presentations

Question 26

convent proportions to Z-scores using Z-tables

Answer 26

d= Z (%hits)- Z (%false alarms)

Question 27

what does calulating d- prime help with

Answer 27

interpretating individual difference in sensory integration

Question 28

each individuals nervous system

Answer 28

use differnt criteria - can reflect a combination of individual differences in strategy and processing

Question 29

stevenson et al, 2012

Answer 29

investigated if individual difference in the perception of McGurk stimulus could be related to variability in the temporal binding window of participants

Question 30

results of stevenson 2012 - left window

Answer 30

- no relationship between perception McGurk effect and left temporal binding window

Question 31

results of stevenson 2012 - right window

Answer 31

individual with shorter temporal binding had higher likely hood of precepting the McGurk effect

Question 32

how did stevenson use to determine the TBW

Answer 32

pscyhophysics

Question 33

what do most motor control and learning paradigms use

Answer 33

individual differences analyses as supplementary analyses

Question 34

individual differences analyses as supplementary analyses

Answer 34

when no group differnce are found, researchers often look for individual differences

Question 35

Lebar et al, 2015

Answer 35

examined participants brain response to visual stimuli during a mirror-reversed drawing tasks

Question 36

results of lebar et al, 2015

Answer 36

- did not find any difference in brain response to visual stimuli in mirror-reversed vs normal drawing conditions

Question 37

results of lebar et al, 2015 high performers

Answer 37

showed increased visual cortex activation during drawing when compared to low performers

Question 38

how can we design an experiment to examine if high performers' really do show increases in brain activity

Answer 38

- training-studies - between-group differences

Question 39

example of a between group studies

Answer 39

test art students compared to kin students meausre brain activity

Question 40

example of training studies

Answer 40

pre and post measure's - measure before then send to training art school then measure after the training