What is a feature detector, and what evidence do we have for feature detectors?
What will be an ideal response?
A feature detector is a neuron in the visual system that responds selectively in the presence of a particular visual feature, such as a line or an angle. One type of evidence of this is that researchers recorded from the visual cortex of cats and monkeys and found neurons that responded only when in the presence of lines and so forth. A second type is that people who have viewed a particular stimulus (such as narrow lines) for a minute or so become more sensitive to other stimuli (such as wider lines), implying that feature detectors for the first stimulus had become fatigued.
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People's INITIAL emotional reaction to social rejection is usually ____
a. sadness or depression b. anxiety c. a feeling of numbness, or "nothingness" d. a feeling of aggressiveness
The simplest way of visualizing a correlation is to construct a scatter diagram
Indicate whether the statement is true or false
Schaie's analysis of data from the Seattle Longitudinal Study indicates that intelligence __________
a) remains constant through most of our adult lives. b) begins to gradually decline in our late teens or early 20s. c) gradually increases until around age 45, then declines. d) begins to decline in our mid-60s.
Christakis & Fowler (2009) found three basic rules to group networks. They did NOT include:
a. we chose our network and its characteristics. b. our networks influence us. c. network influence goes out three degrees. d. the best network is the network we are most familiar with.