Physiological Basis of Behaviour MCQ Questions and Answers

Explore the Physiological Basis of Behaviour with this comprehensive collection of MCQ questions and answers.Physiological Basis of Behaviour is perfect for psychology students preparing for competitive exams such as BA (Psychology), MA (Psychology), UPSC, UGC NET, State PCS, and more. Enhance your understanding, excel in your studies, and strengthen your preparation with this valuable resource. Page-5 section-1

Assertion (A): Dendrites carry information toward the cell body, whereas axons carry information away from it
Reason (R): Neurons are one way channels of communication

A) Both A and R are true and R is the correct explanation of A B) Both A and R are true but R is not a correct explanation of A C) A is true but R is false D) A is false but R is true

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Answer & Solution

Answer: Option A

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Reflexes involve neural circuits in which information from various receptors is carried to the spinal cord, where it stimulates other neurons known as

A) Interneurons B) Outerneurons C) Extraneurons D) Intraneurons

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Answer & Solution

Answer: Option A

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HPA stands for

A) Hypothalamus-pituitary-adrenal axis B) High-performance-activity C) High-power-awareness D) None of the above

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Answer & Solution

Answer: Option A

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Each cerebral hemisphere is covered by the

A) Myelin sheath B) Grey matter C) Cerebral cortex D) None of the above

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Answer & Solution

Answer: Option C

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Which one of the following information is not true about the Afferent Nerve Fibers?

A) These are the nerve fibers in the spinal cord B) They carry information from the brain to muscles throughout the body C) They carry information from the brain to the glands through out the body D) They carry information from the glands to the brain

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Answer & Solution

Answer: Option B

Solution:

Definition: Afferent nerve fibers are sensory fibers that transmit information from receptors in the body, such as skin, muscles, and glands, to the central nervous system (brain and spinal cord). They act like incoming communication lines carrying messages toward the brain.

Direction of signals: Afferent fibers carry sensory signals to the brain, while efferent fibers carry motor or autonomic signals from the brain to the body.

Why Option B is incorrect: Sending information from the brain to muscles is the function of efferent nerve fibers (motor nerves), not afferent fibers. Afferent fibers never send commands outward; they only bring sensory information inward.

Why the others are correct: Option A is true because afferent fibers are present in the spinal cord. Option C is true because autonomic sensory feedback from glands can be carried to the brain. Option D is true because glands can send signals to the brain through afferent pathways.

Conclusion: Since afferent nerve fibers do not carry information from the brain to the muscles, the statement in Option B is not true.

Which of the following statements is correct about 'thalamus'?

A) It is a simple relay station B) It can transform and modify inputs before sending it on to the cerebral cortex C) It lies between the two cerebral hemispheres and is covered by them D) All of the above

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Answer & Solution

Answer: Option D

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