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Physiological
O my jesus OBAMA IS PREZZER!
33
Psychology
Undergraduate 4
11/04/2008

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Cards

Term
Nerve Growth Factor
Definition
Stops apoptosis
Term
TOP--DV
Definition
Chemical that axons follow
Term
Ischemia
Definition
Stroke due to obstruction
Term
Penumbra
Definition
The area of cells that start dying off arond the dead cells after stroke
Term
Tissue plasminogin Activator
Definition
Breaks up blood clots (good for ischemia)
Term
Diaschisis
Definition
The decreased activity of surviving neurons around a stroke area
Term
Nimodipine
Definition
Calcium blocker improved memory on visual learning tasks in rats with visual cortex lesions
Term
Gangliosides
Definition
Carb and fat molecules


Help restore damaged brains
Term
Lateral Geniculate Nucleus
Definition
Goes through thalamus to the primary visual cortex, most optic nerves go thru
Term
Supierior Colliculus
Definition
Some optic nerves split and end here
Term
Parvocellular
Definition
Smaller ganglion cell bodies, detect small details and colors, all axons go to LGN
Term
Magnocellular
Definition
Movement and patterns, most axons go to LGN
Term
Konocellular
Definition
Small ganglion cell bodies, have no clue what for, go to LGN, superior colliculus and thalamus
Term
Primary Visual Cortex
Definition
V1/ Striated cortex. LGN comes here, then it goes out to V2
Term
V2
Definition
Feedback loop to V1
Term
Magnocellular path
Definition
Splits into the dorsal and ventral paths
Dorsal--to temporal, movement
Ventral--to parietal, integrates vision with action
Term
Parvocellular path
Definition
To temporal, shape
Term
Mixed parvo/magno path
Definition
To temporal, brightness and color
Term
Ventral stream
Definition
TO TEMPORAL

"what" pathway--magno, parvo and magno/parvo, identify objects
Term
Dorsal Stream
Definition
"how" pathway, PARIETAL, find and manipulate objects
Term
Visual agnosia
Definition
Inability to recognize objects
Term
Prosopagnosia
Definition
Inability to recognize faces, damage to the fusiform gyrus
Term
MT--Middle Temporal Cortex
Definition
Respond to movement only, regardless of shape or size or color
Term
MST--Medial superior cortex
Definition
Respond best to expansion, contraction or rotation of large visual scene
Term
Muscle Proprioceptor
Definition
Detect muscle stretch and tension and send messages to adjust
Term
Muscle Spindle
Definition
Proprioceptor sensitive to stretch, contract!
Term
Golgi tendon organ
Definition
Proprioceptor sensitive to Tension--don't contract!
Term
Posterior parietal cortex
Definition
Keeps track of position related to environment
Term
Dorsolateral (pyramidal tract)
Definition
Originate from primary motor cortex and red nucleus, cross over to opposite sides of spinal cord


Periphery
Term
Ventromedial tract
Definition
Primary and supplementary motor cortex


Both sides of spinal cord
Term
Basal ganglia
Definition
Forebrain, organize info into sequences and chunks
Term
Caudate nucleus/putamen
Definition
Receive sensory input from thalamus and cortex (basal ganglia)
Term
Globus pallidus
Definition
Basal ganglia--Sends info to thalamus where it goes to motor and premotor cortex
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