Regarding skin mapping, which of the following statements is TRUE?
a. Skin mapping of sensitivity is done by using an fMRI scan.
b. Skin mapping shows that the different skin receptors are found in varying concentrations, which reflects the sensitivity of the body areas.
c. Skin mapping shows that pain receptors do not vary in concentration but are uniform for all parts of the body.
d. According to skin mapping, the forearm and thigh are more sensitive than the face and hands.
ANSWER: b
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Eight-month-old Sarah is presented with a collection of small objects, including dolls, toy animals, and toy cars. If she has developed categorization, she most likely will
a. place each doll or animal next to a toy car, creating sets of "drivers" and vehicles b. put all of the dolls in one group, the toy animals in a second group, and the toy cars in a third group c. not be able to manipulate the objects, and the researchers will use her visual behavior as an indicator of her ability to categorize the objects d. choose to play with just the dolls, since she is a girl (a boy would almost always select the cars)
Theories of aging that focus on how external factors damage our body are usually referred to as biological clock theories
Indicate whether the statement is true or false