8 - Link With Other Senses Flashcards
What are some facts about the multimodal organization in the superior colliculus?
Multimodal neurons are found in the deep layers.
Knowing where the RF of visually responsive neuron was located was a reliable predictor of where the RF of a neighboring auditory and/or somatosensory-responsive neuron would be located.
Combined stimuli of different modalities within RF cause a significantly enhanced response that exceed simple summation.
As stimuli become less effective, what happens to the benefit of combining stimuli from different modalities?
It becomes progressively greater
What is the interaction between content information and temporal information?
The activity in the superior temporal cortex in congruent trials was increased during synchronous presentation compared with incongruent trials.
This difference was absent or less pronounced for asynchronous presentation.
What is the PT
The posterior auditory association cortex
What is aSTP?
The anterior auditory association cortex
How do the PT and aSTP react to the temporal and content information?
The PT shows a difference in multisensory integration produced by congruent (enhancement) and incongruent (depression) stimulus pairs for synchronous stimulation.
aSTP only congruent at synchronous simulation produced a response (enhancement)
What is the role of the aSTP?
Role in associating the exact identify of letters and speech sounds (what pathway)
What is the role of PT?
How pathway, sensory integration of speech information.
Might link sensory representation of letters and speech sounds with motor representations invoked in speaking and writing.
Role of STS?
Receives visual information and auditory information and integrates both inputs within a broad range of SOAs
Where is space represented in the superior colliculus?
Nasal or frontal - rostral
temporal or caudal - caudal
superior - medial
inferior - lateral
