Alejandra, a resident of lower Manhattan, suffers from PTSD after witnessing the attack on the twin towers of the World Trade Center on September 11, 2001. A certain acrid burning smell can trigger intense feelings of jitteriness and distress for her. This is an example of ____.
a. positive reinforcement
b. operant conditioning
c. classical conditioning
d. observational learning
Question 2
Jake, a veteran of the Iraq war, witnessed his friends being severely injured or killed on two tours of duty. He came home physically healthy but suffering from PTSD. Jake was not much of a drinker before he went to Iraq, but now, he frequently drinks alone at night. To what might this be related?
a. excessive levels of naturally occurring benzodiazepine activity in the frontal cortex
b. lower levels of naturally occurring benzodiazepine activity in the frontal cortex
c. excessive levels of naturally occurring benzodiazepine activity in the hippocampus
d. lower levels of naturally occurring benzodiazepine activity in the hippocampus
Bones of the lower extremity.
Lower extremity blood pressure cuff
The tarsier is a haplorhine, and may represent an evolutionary bridge between lower and higher prima
The risk of dying before the age of 65 gets lower as family income gets higher.
A) Normal bronchiole and (B) bronchiole constricted in asthma attack.
Man-in-the-middle attack