additional final Flashcards
topographic map/homuculus/penfield
why are magnocellular cells named the way they are
much larger than parvocellular cells
which hemifields are affected if optic chiasm is damaged and why
optic chiasm is where all nasal retinas cross, so it would only impact nasal retinas
left hemifield for left eye: goes to nasal retina, crosses at optic chiasm, so would go dark
right hemifield for right eye: goes to nasal retina, so would also be affected
= LOSS OF PERIPHERAL (or temporal) VISION ON BOTH SIDES
what happens if optic radiations are damaged and why
what impact does rarefaction have on perception of sound
more rarefaction = quieter sounbd
more compression = louder sound
Spinocerebellar tracts
spinal cord m– to cerebellum, going from down to up
what effect does free vs encapsulated nerve endings have on somatosensory receptors?
encapsulated = increases its sensitivity
what stimulus is needed for proprioceptors
= movement of tendons or joints
sensation is unconcious
binding problem of perception
The binding problem considers that features of an object need to be bound together by some neuronal mechanism across a population of neurons, so that the object can be perceived as a whole.
sensory neuron vs specialized receptor
sensory neuron: takes info into the CNS; sensory receptor can’t do this
“homunculus’ meaning
little man
effect of wave length on energy
long wavelength: lower energy
shorter wavelength: higher energy
cones and their pigments
each cone can respond to more than one color, but they are most sensitive to the specific color
does the fovea havbe any rods
no
