A researcher uses a device to press two closely-spaced pins onto various places on participants' bodies. Each time, the research asks the participant to say whether they feel two distinct points or only one
The researcher is testing the _____________ of the skin on the different body parts.
A) gate threshold
B) flexibility
C) acuity
D) nociception
Answer: C
Rationale: Sensitivity to touch varies across different regions of the body. One simple method of testing sensitivity, or acuity, is to use the two-point threshold test. Regions with high acuity, such as the fingertips, can detect the two separate, but closely-spaced pressure points of the device, while less sensitive regions such as the lower back will perceive the same stimuli as only one pressure point.
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a. distillation b. fermentation c. brewing d. hydrolysis
Debbie is a single-mother raising three children. Two factors associated with more successful outcomes for her family are
a. more involved parenting and more income. b. more involved parenting and religion. c. religion and higher education. d. remarriage and education.
Betsy wants to train her dog to perform several tricks. She checks out a book on dog training that includes a chapter on how to use classical conditioning. Betsy learns that a dog is least likely to learn a conditioned response when the
A. unconditioned stimulus is strong. B. conditioned stimulus precedes the unconditioned stimulus. C. time interval between the conditioned stimulus and the unconditioned stimulus is under one minute. D. conditioned stimulus predicts many different stimuli.
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