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Glossary of Lecture 16 Psych 345

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Created by jamiegallup

4 thins of asymmetrical brain:
1. asymmetries in the CC
2. hadedness
3. fxns of the cc
4. fxns of lateralized


What were the verbal and spatial tasks in the hemi diff in verbal and spatial processing task?
Verbal: seen letters in one hemi, asked to say if probe letter matched previous
spatial: dot lateralized, have to say if circle was in the same location as the dot
Verbal/spatial asymmetries task results:
Splits: LH: much better for verbal
RH: much better for spatial
see little diff but sim better for controls

Why is there any difference in the intact brain w/ a CC and the spatial and verbal R and L hemi task?
Relying on the CC is good but cost performance wise,
info must be transfered across the CC and takes more time and more degradation
What is callosal relay?
interhemispheric transfer
The right hand responds to the __ visual field faster than the __ visual field because:
Right, left
interhemispheric transfer not needed
What is uncrossed interhemispheric transfer?
hemi gets the signal also controls the output and doesn't have to cross the info for performance to occur
The brain is wired to transmit info to parts of the brain __ able to deal with info. Hemispehre ___ for the task
best specailization
Callosal realy has a decrease in __ and __
degradation of info and time
RVF input leads to better performance on __ tasks than LVF

verbal
LVF input leads to better pefromance on ___ tasks than RVF
spatial
Both ears project __ so both hemi receive stimulus and __ stimulus
bilaterally, contralateral
With dichotic listening there is competition so the __ pathway surpressed
ipsilateral
__ ear __> __ hemi (stronger listening)
right, left
__ hemi better at understanding speech and producing so the __ ear advantage
left, right
Hemi that controls writing is __ to handedness
contralateral
What test locates speech in the brain?
Wada - puts 1 hemi to sleep and tests the other

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