Perception

Question 1

sensory modalities

Answer 1

type of sense (vision, audition)

- perception operates in content of info supplied by many types of sense

Question 2

unimodal

Answer 2

of or pertaining to a single sensory modality

- response to independent senses and stimuli

Question 3

multimodal

Answer 3

of or pertaining to multiple sensory modalities

- perception of all stimulus together

Question 4

multimodal perception

Answer 4

effects that concurrent stimulation In more than one sensory modality has on the perception of events and objects in the world

Question 5

integrated

Answer 5

process by which perceptual system combines information arising from more than one modality
*rarely combine auditory stimuli associated with an event w the visual stimuli of another

Question 6

super additive effect of multi-sensory integration

Answer 6

multimodal stimuli are typically greater than the sum of the independent responses to each component if it were presented on its own
- determined by the strength of the response to a single stimulus modality with the biggest effect

Question 7

principle of inverse effective

Answer 7

in general for a multimodal stimulus, if response to each unimodal component (on its own) is weak, the opportunity for multi-sensory enhancement is large
* if one component is enough, then processing other components of the stimuli is small

Question 8

multi sensory convergence zones

Answer 8

regions of the brain that receive input from multiple areas processing different sensory modalities from multiple unimodal areas processing different sensory modalities

Question 9

superior colliculus

Answer 9

receives input from many areas of the brain

• involved in receiving info from unimodal processing of visual and auditory stimuli
• involved in “orienting response” (moving gaze towards location of heard stimulus)

Question 10

Receptive field

Answer 10

portion of the work to which a neuron will respond if an appropriate stimulus is present here

• neuron responds by increasing or decreasing its firing rate
• if stimulus is present outside receptive field, there is no effect on its firing rate

Question 11

cross modal stimuli

Answer 11

stimulus with components in multiple sensory modalities that interact w each other

Question 12

spacial principle of multi sensory integration

Answer 12

finding that super additive effects of multi-sensory integration are observed when the sources of stimulation are spatially related to one another

Question 13

multimodal phenomena

Answer 13

effects that concern the binding of inputs from multiple sensory modalities

Question 14

cross-modal phenomena

Answer 14

effects that influence perception of one sensory modality on the perception of another

Question 15

McGurk effect

Answer 15

conflicting visual & auditory components of a speech stimulus results in an illusory perception

Question 16

rubber hand illusion

Answer 16

false perception of a fake hand belonging to a perceiver due to multimodal sensory information
- awareness of our body results from multi sensory integration

Question 17

cross modal phenomena

Answer 17

different from multimodal phenomena because they concern the influence of one sensory modality has on the perception of another

Question 18

the ventriloquism effect

Answer 18

tricks listener into believing the puppet is talking

- motion of a visual object can influence the perceived direction of motion on a moving sound source

Question 19

double flash illusion

Answer 19

false perception of 2 visual flashes when a single flash is accompanied by two auditory beeps

Question 20

perception of collisions between two circles

Answer 20

tendency to see them bouncing off each other if the moment of contact is accompanied by an auditory stimulus
* perceived sound influences interpretation of the ambiguous visual stimulus

Question 21

cross modal speech

Answer 21

visual form of speaker engaged in the act of speaking appears to contain information about what that speaker should sound like
- auditory speech seems to contain info about what the speaker should look like