A behavior pattern marked by chronic emotional distress, combined with a tendency to suppress negative emotions, describes _____

By pairing the ringing of a bell with the presentation of meat, Pavlov trained dogs to salivate to the sound of a bell even when no meat was presented. In this experiment, the presentation of the meat was the:

a. unconditioned stimulus. b. unconditioned response. c. conditioned stimulus. d. conditioned response.

Soldiers who served in war-torn Vietnam or Iraq or individuals who lived through natural disasters like hurricanes or floods may experience a psychological disorder known as _______

a. Conversion disorder b. Post-traumatic stress disorder c. Bipolar disorder d. Histrionic personality disorder