By what age do most infants first demonstrate the ability to discriminate happy and sad vocal expressions in others?

A. 3 months
B. 12 months
C. 5 months
D. 9 months


Answer: C

Psychology

You might also like to view...

Top-down processing:

a. involves scanning an object from the top to the bottom when it is first encoded b. is controlled by the physical message delivered to the senses c. involves using perceptual illusions to aid in recognizing familiar objects d. is controlled by one's beliefs and expectations

Psychology

Which of the following is NOT a symptom of the parasympathetic division of the nervous system being activated?

a. digestion increases b. blood flow increases c. pupils dilate d. heart rate slows

Psychology

In an experiment studying classical conditioning, a tone sounds and 5 seconds later a mild skin shock is delivered to a participant. The skin shock results in a stress response consisting of a temporary increase in heart rate. This process is repeated once every 5 minutes. After a number of trials, the participant demonstrates an elevated heart rate when the tone sounds and before the shock is

actually delivered. Within the context of this example, what is the UR? A) the oscillating increases and decreases in heart rate B) the increase in heart rate after the shock C) the increase in heart rate after the tone but before the shock D) the increase in heart rate to either the shock or the tone

Psychology

Your best friend has been acting rather cool toward you lately. As you try to figure out why, you are engaging in the process called __________

a) attribution. b) causal analysis. c) ascribing values. d) nonverbal communication.

Psychology