A group of rats was exposed to the uncontrollable stress associated with being forced to swim for 15 minutes in cold water from which they cannot escape. What did researchers notice when they observed these animals?
a. Most rats were immune to the effects of the stress.
b. The rats' depression was reduced by the high level of physical activity.
c. The stress caused a form of brain damage that first led to motor retardation and then death.
d. The rats that exhibited symptoms similar to depression had altered neurotransmitter levels.
Question 2
Some clinicians have argued that mental disorders cannot be studied using laboratory animals as subjects, because
a. studies of depression should only be done in natural settings, and very few of those exist.
b. cognitive symptoms cannot be measured in animals.
c. animals do not express emotions similar to depression.
d. the brains of animals are too different from homo sapiens.
Swim bladder of a Rudd (Scardinius erythrophthalmus)
Members of the Lemba ethnic group from southern Africa.
Ventromedial Group of Descending Motor Tracts
Young adults who described themselves as “not being religious at all” had greater stress ...
Group of Gorillas
Heat and Cold Stress Compared