Ch.5 Practice Quiz Flashcards
(21 cards)
Three colours of light (red, green, blue) pass through a filter that is yellow in colour. What colour will come out?
Yellow
The study of the relationship between physical events and how we respond to them psychologically is called _______
Psychophysics
The expression ∆I/I=K is called ______; the expression S = K log R is called ______.
Weber’s law; Fechner’s law
Weber’s law states that the…
JND with respect to the intensity level of any stimulus is a constant proportion
Assuming that you are just able to detect the difference between 40kg and 45kg. If the initial weight is 80kg, what will be the just noticeable difference (JND)? In other words, the JND for 40 is 5, the JND for 80 is ______?
10kg
If you can just notice the difference between 10 and 11 pound weights, what is the minimum weight that you can differentiate from a 40 pound weight?
44 pounds
Which type of cells has the largest number (compared to the others)?
Rod
_____ affects the perception of brightness; _____ affects the perception of colour; _____ affects the perception of saturation
Amplitude; wavelength; purity
The primary visual cortex is in the _____ lobe
Occipital
In psychophysical research, the absolute threshold has ben arbitrarily defined as…
The stimulus intensity that can be detected 50% of the time
A tone-deaf person would probably not be able to tell two musical notes apart unless they are very different. We could say that this person has a relatively large ______
Just noticeable difference
The visual pathway that has been characterized as the _____ travels through the dorsal stream to the parietal lobes, whereas the pathway that has been labelled the _____ travels through the ventral stream to the temporal lobes
“where/how” pathway; “what” pathway
Damage to which of the following lobes would make it difficult for you to touch your finger to your nose with your eyes closed
Parietal lobe
According to the opponent-process theory, ….
Neurons involved in colour vision are stimulated by one wavelength (e.g. green) and inhibited by another (e.g. red)
Which statement(s) is/are true?
(i) A color printer uses green, red, blue as the three primary colors to produce all other colors.
(ii) In additive colour mixing, the secondary colours are darker than the primary colours.
(iii) In subtractive colour mixing, the secondary colours are lighter than the primary colours.
(iv) The primary colours of subtractive colour mixing are cyan, magenta, and yellow.
(iv) Only
Which set(s) of number agree(s) with the Weber’s law?
Answer Pair 1 Pair 2
I_2-I_1 I_1 I_(n+1)-I_n I_n
1 1 10 2 100
2 1 2.5 20 50
3 5 50 10 100
4 3 21 7 28
Both 2 and 3
A person who hears music notes in specific colours is an example of _____
Synesthesia
*Where is light/dark contrast processed?
The receptive field of a ganglion cell
*Where is motion & depth processed?
The parietal lobe
*Where is form & colour processed?
The temporal lobe
*Where is orientation processed?
The occipital lobe
