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 ____.?

Juan is a patient in psychoanalysis. During free association, Juan's psychoanalyst encourages Juan to

a) employ logical thought processes. b) verbalize whatever comes to mind. c) employ aesthetic considerations. d) verbalize socially acceptable thoughts.

According to the trichromatic theory of color vision, the primary colors associated with the stimulation of cones on the retina are:

a. red, blue, and green b. red, white, and blue c. blue, green, and yellow d. red, green, blue, yellow, black, and white