Sensory Systems - Vision / Auditory Flashcards
photoreceptors are tuned to specific blank
wavelengths of light
this stuff embedded in the photoreceptor discs detect photons
rhodopsin
in dark conditions, cGMP is free to bind to blank channels
sodium
dark conditions has an open channel and the cell is blank
depolarized
light conditions activates blank which activeates blank which breaks down blank which blank sodium channel which makes the cell stop firing
transducin (g protein), phosphodiesterase, cGMP, closes
cones have high resolution, and blank convergence onto ganglion cells
low
rods have low resolution, and blank convergence onto ganglion cells
high
parvocellular pathway has blank cells, and is mostly blank
midget, cones
magnocellular pathway has blank cells and is mostly blank
parasol, rods
v1 neurons are organized according to orientation and blank
ocular dominance
retinal ganglion cells detect stimulus establish the blank
center surround
organizes low level features of vision
primary vis cortex
organizes more features/integration of vision
secondary vis cortex
where pathway (localization, movement)
dorsal
what pathway (identity, object form)
ventral