the site of chemical communication in the brain is the
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Psychology 2301 Exam 1

1. Where is the site of chemical communication in the brain?

Correct answer: B

Rationale: The correct answer is B: Synapse. The synapse is the site where chemical communication occurs between neurons. Neurotransmitters are released from the axon terminal of one neuron, cross the synaptic cleft, and bind to receptors on the dendrites of the next neuron. Choice A, Neuron, is incorrect as it refers to the entire nerve cell. Choices C and D, Axon and Dendrite, are also incorrect as they are specific parts of a neuron and not the primary site of chemical communication.

2. Mental disorders are almost always _______, meaning they are influenced by multiple genes.

Correct answer: C

Rationale: The correct answer is C: 'polygenic.' Mental disorders are polygenic, which means they are influenced by multiple genes. This term specifically refers to conditions or traits that are caused by more than one gene. Choice A, 'environmental,' is incorrect as it doesn't directly refer to the genetic influence on mental disorders. Choice B, 'chemical circuits,' is incorrect as it is too specific and not a common term used to describe the genetic basis of mental disorders. Choice D, 'probabilistic,' is incorrect as it relates more to the likelihood or chance of something happening rather than the genetic influence on mental disorders.

3. Dr. Kali works with clients to help them learn deep relaxation. Next, he has them list their fears from least to most anxiety-provoking. Finally, Dr. Kali slowly exposes his clients to each of their fears and assists them in gaining control of their anxiety. His approach is best known as?

Correct answer: A

Rationale: The correct answer is A, systematic desensitization. This therapy involves a step-by-step exposure to feared stimuli, helping individuals manage and reduce their anxiety. In this case, Dr. Kali's method of listing fears from least to most anxiety-provoking and gradually exposing clients to them aligns with the principles of systematic desensitization. Choices B, C, and D are incorrect. Aversion therapy involves associating an undesirable behavior with an unpleasant stimulus, flooding involves immediate and intense exposure to feared stimuli, and 'fear therapy' is a broad term that does not specifically describe the systematic exposure and relaxation techniques used in systematic desensitization.

4. While the term psychology has existed since at least the early 1700s, psychology did not come to be considered a science until?

Correct answer: C

Rationale: Psychology became recognized as a science in the late 1800s, aligning with broader trends in scientific inquiry during that period. This marked the establishment of psychology as a distinct field of study based on empirical research and experimentation. Choices A, B, and D are incorrect because psychology's formal recognition as a science occurred later, specifically in the late 1800s.

5. What is the term for the age of an unborn baby, usually dated from the first day of an expectant mother's last menstrual cycle?

Correct answer: D

Rationale: The correct answer is D, Gestational age. Gestational age is calculated from the first day of the expectant mother's last menstrual cycle, providing an estimate of how far along the pregnancy is. Mental age (choice A), refers to an individual's level of cognitive functioning in relation to others of the same age group. Chronological age (choice B) is a person's actual age in years. Functional age (choice C) refers to how well a person is able to perform various activities compared to their chronological age.

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