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Glossary of Psych 345

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Created by jamiegallup

What was the Ungerleider and Miskin landmark and identity discrimination task?
Showed a double dissociation as monkeys with temporal lesions could not do the identity task and monkeys with parietal lesions could not do the landmark task
What is the difference between a single dissociation and double dissociation?
Single dissociation: lesion to part A disrupts function X but not Y
DOuble dissociation: lesion to part A disrupts function X but not Y lesion to part B disrupts function Y but not X
3 reasons for separate pathways:
1. Require different kinds of information
2. Have different computational demands
3. Need special purpose machinery

Describe the 6 layers of the LGN:
Superior 4 are parvocellular (small cell) 2 R, 2 L
inferior 2 are magnocellular (large cell) 1 R, 1 L
Retinal P-cells are __ in the fovea
dominate
Parvocellular pathway is dominant input to the __/__ pathway
ventral/what
3 characteristics of the parvocellular pathway
1. slower conducting
2. color selective: b/c color important for object identity
3. high acuity

Magno cells project to the magnocellular layer in the ___ and the __ __
LGN and superior colliculous
3 characteristics of magnocellular pathway
1. fast conducting
2. no color code
3. low acuity

Input from M-cells mostly in the __ and the domininant input to the __/__ stream
periphery dorsal/where
What technique did Broadman use to find different compartments within Area 17?
cytochromeoxidase
Where does the convergence of the two eyes occur in the parvocellular pathway?
interblobs - become binocular neurons
What are Broadman's areas 18?
V2 and V3 which are where blobs and interblobs lay - where the eyes converge of parvocellular layers
V3:
form
V4:
color
IT:
form
MT:
motion

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