Greg has always wanted to try out for the school play, but has never dared to do it. Now at age 14, he has decided to try. He is actually looking forward to the thrill of being on stage in front of a live audience. In terms of the dual systems model, Greg is engaged in
a. artistic expression.
b. negative risk-taking.
c. positive risk taking
d. strong executive control by the prefrontal cortex.
Question 2
In studies by Steinberg and colleagues (Cauffman et al., 2010; Steinberg et al., 2008), using self-ratings of the tendency to take risks and impulse control, impulse control did not approach adult levels until ages
a. 10 to 12.
b. 12 to 14.
c. 15 to 17.
d. 18 to 22.
The sea urchin Diadema on a coral reef. Feeding by Diadema appears to play a key role in the interac
Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. (
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