The threshold level is reached at the neuro

A hypercomplex visual cortical cell detects motion. detects angles and line ends. detects straight lines and edges. none of the above answers is correct

how does visual transduction occur in rods? Select one: a. By inhibition: light bleaches the rhodopsin molecules, which closes sodium channels. This hyperpolarizes the rods and increases GABA release. b. By excitation: light inhibits rhodopsin molecules, which blocks sodium ion influx. This depolarizes the rods and causes glutamate release. c. By inhibition: light bleaches rhodopsin molecules, which closes sodium channels. This hyperpolarizes the rods and reduces glutamate release. d. By excitation: light activates rhodopsin molecules, which opens sodium channels. This depolarizes the rods and causes glutamate release

is a person thought to be could be “brain dead" if the light shining in the eyes causes some ? pupillary miosis. The above suggests that the person is in fact "brain dead" .