PSYC304 Week 2 Quiz

PSYC304 Week 2 Quiz Question 1 of 15 1.0 Points Visible light is between ______ and ____ nm within the electromagnetic spectrum. A.100; 400 B.400; 700 C.500; 1000 D.900; 1500 Question 2 of 15 1.0 Points Lateral inhibition can be used to explain A.the Hermann Grid B.Mach bands C.simultaneous contrast D.all of the above Question 3 of 15 1.0 Points The rod-cone break in the dark adaptation curve occurs after what time period in the dark. A.30 seconds B.2 minutes C.7 minutes D.30 minutes Question 4 of 15 1.0 Points The blind spot is located A.in the fovea B.in the vitreous C.where the optic nerve leaves the eye D.at the optic chiasm Question 5 of 15 1.0 Points According to Goldstein, the evolutionary explanation of neural specialization is A.easily tested empirically B.better overall than environmental explanations C.flawed, because it cannot address issues in modalities other than vision D.supported by evidence of motion and depth specific neurons in the newborn monkey Question 6 of 15 1.0 Points The Hecht et al. (1942) study is important because A.the results showed that 20 pigment molecules must be isomerized for a rod receptor to be excited. B.it was the first study to use microelectrodes to measure activity in an individual neuron. C.it demonstrates that a psychophysical study can provide information about physiological processes. D.the results provide a counterexample to the evolutionary theory of color vision. Question 7 of 15 1.0 Points Light can be described in terms of wavelength, or as consisting of small packets of energy called A.photons B.electrons C.ions D.pulsars Question 8 of 15 1.0 Points Neurons in the LGN have _____ receptive fields. A.center surround B.side-by-side columnar C.ill defined D.ambiguous Question 9 of 15 1.0 Points According to Miller and Goodale, the dorsal stream is the _________ pathway. A.what B.when C.how D.why Question 10 of 15 1.0 Points The "chain reactions" that occurs when isomerization of a single pigment molecule triggers the activation of more and more molecules is called the A.enzyme cascade B.ballistic expansion C.hyperactive potential D.hypopolarization wave Question 11 of 15 1.0 Points Acuity is better in the _________ than in the _________. A.periphery; fovea B.optic disk; fovea C.optic disk; cornea D.fovea; periphery Question 12 of 15 1.0 Points The difficulty of reading under dim light conditions can be explained by A.increased sensitivity of cones under low light conditions B.increased acuity of cones under low light conditions C.the fact that rod functioning predominates during dark adaptation, therefore poor acuity D.the fact that cone functioning predominates during dark adaptation, therefore poor acuity Question 13 of 15 1.0 Points Covergence results in ____________ sensitivity and ____________ acuity. A.increased; increased B.increased; decreased C.decreased; decreased D.decreased; increased Question 14 of 15 1.0 Points As night falls, a red flower seems to fade in brightness compared to its green stem or leaves. This change in vision is called A.the Purkinje shift. B.nocturnal transition. C.Muller's shift. D.spectral adaptation. Question 15 of 15 1.0 Points The PPA activity is A.higher for pictures of furnished rooms than empty rooms B.higher for pictures of empty rooms than furnished rooms C.higher for pictures of body parts than faces D.the same for pictures of furnished and empty rooms