Multi-Modal perception Flashcards
Bouncing balls illusion
The tendency to perceive two circles as bouncing off each other if the moment of their contact is accompanied by an auditory stimulus.
Crossmodal phenomena
Effects that concern the influence of the perception of one sensory modality on the perception of another.
Crossmodal receptive field
A receptive field that can be stimulated by a stimulus from more than one sensory modality.
Crossmodal stimulus
A stimulus with components in multiple sensory modalties that interact with each other.
Double flash illusion
The false perception of two visual flashes when a single flash is accompanied by two auditory beeps.
Integrated
The process by which the perceptual system combines information arising from more than one modality.
McGurk effect
An effect in which conflicting visual and auditory components of a speech stimulus result in an illusory percept.
Multimodal
Of or pertaining to multiple sensory modalities.
Multimodal perception
The effects that concurrent stimulation in more than one sensory modality has on the perception of events and objects in the world.
Multimodal phenomena
Effects that concern the binding of inputs from multiple sensory modalities.
Multisensory convergence zones
Regions in the brain that receive input from multiple unimodal areas processing different sensory modalities.
Multisensory enhancement
See “superadditive effect of multisensory integration.”
Primary auditory cortex
A region of the cortex devoted to the processing of simple auditory information.
Primary visual cortex
A region of the cortex devoted to the processing of simple visual information.
Principle of Inverse Effectiveness
The finding that, in general, for a multimodal stimulus, if the response to each unimodal component (on its own) is weak, then the opportunity for multisensory enhancement is very large. However, if one component—by itself—is sufficient to evoke a strong response, then the effect on the response gained by simultaneously processing the other components of the stimulus will be relatively small.
Receptive field
The portion of the world to which a neuron will respond if an appropriate stimulus is present there.
Rubber hand illusion
The false perception of a fake hand as belonging to a perceiver, due to multimodal sensory information.
Sensory modalities
A type of sense; for example, vision or audition.
Spatial principle of multisensory integration
The finding that the superadditive effects of multisensory integration are observed when the sources of stimulation are spatially related to one another.
Superadditive effect of multisensory integration
The finding that responses to multimodal stimuli are typically greater than the sum of the independent responses to each unimodal component if it were presented on its own.
Unimodal
Of or pertaining to a single sensory modality.
Unimodal components
The parts of a stimulus relevant to one sensory modality at a time.
Unimodal cortex
A region of the brain devoted to the processing of information from a single sensory modality.
