PSYC 375 Study Guide- Questions and Correct Answers

Intrinsically photosensitive retinal ganglion cells: play a role in regulating the wake-sleep cycle Transduction in olfactory cells involves the opening of: Ca2+ (calcium) activated Cl- (chloride) channels Retinal ganglion cells in the peripheral retina have high light sensitivity but low visual acuity. True Olfactory neurons originating from the olfactory bulb project directly to: olfactory cortex An NMDA channel will open provided that: It is bound by glutamate and the membrane potential reaches a threshold value What enables us to focus on objects located near the eye? A change in the shape of the lens Red-green color blindness would be associated with the absence of: L-cones or M-cones P-type retinal ganglion cells: have small receptive fields and some of them can be color-opponent Some pyramidal neurons within neocortex possess dendrites with an excitable membrane, which means that they have: voltage-gated sodium channels and voltage-gated calcium channels What is the function of laterally displacing neurons above the photoreceptors in the fovea (results in fovea looking like a pit in cross section)? Decreases the scattering of light that would cause blurring The central fovea is densely packed with which of the following? L-cones and M-cones Each glomerulus receives input from only one type of olfactory receptor. True