Pheromones are
a. chemicals found in the brains of some birds that enable them to detect gravitational fields.
b. chemical substances used by some species to communicate with each other.
c. medications given to people suffering from chronic pain.
d. special receptors on the bodies of some fish that enable them to detect distortions in electrical fields.
Answer: b. chemical substances used by some species to communicate with each other.
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In classical conditioning the stimulus that normally evokes an automatic response even without new learning is called the:
a. conditioned stimulus. b. reflexive stimulus. c. unconditioned stimulus. d. orienting stimulus.
Which of the following cues is thought to develop last?
A) monocular cues B) pictorial cues C) binocular cues D) kinetic cues