a baby throws its arms out and then inward as if embracing in response to loud noise or when its head falls which reflex is this
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Exam 4 Psychology 101

1. A baby throws its arms out and then inward (as if embracing) in response to loud noise or when its head falls. Which reflex is this?

Correct answer: D

Rationale: The correct answer is D, Moro. The Moro reflex is an instinctual response seen in infants when they experience a sudden loss of support or loud noise. The baby will throw their arms out and then bring them back in, resembling an embrace. This reflex is important for survival as it helps the infant react to potential dangers. Choice A, Babinski, refers to the reflex where a baby's toes spread apart when the sole of the foot is stimulated. Choice B, Palmar, is related to the reflex where a baby's fingers close tightly around an object placed in their palm. Choice C, Darwinian, is not a recognized reflex in this context.

2. A predisposition toward developing a disorder is termed a __________ .

Correct answer: A

Rationale: A predisposition toward developing a disorder is termed a diathesis. In this context, diathesis refers to an individual's susceptibility or predisposition to developing a disorder. A diathesis is not the same as a risk factor or a sufficient cause. A risk factor is a variable that increases the likelihood of developing a disorder but is not a predisposition itself. A sufficient cause is a factor that can produce the disorder on its own, not just a predisposition.

3. A group of psychologists is conducting research to determine whether people eat more when they are in the presence of environmental stimuli that increase anxiety, such as loud noises or flashing lights. These scientists most likely follow?

Correct answer: A

Rationale: The correct answer is A, the behavioral perspective. This perspective focuses on how environmental stimuli influence behavior, making it suitable for studying how anxiety-inducing stimuli affect eating behavior. The psychodynamic perspective (choice B) would focus more on unconscious processes and early life experiences. The humanistic perspective (choice C) emphasizes personal growth and self-actualization. The functionalist perspective (choice D) is more related to the study of the purpose of behavior and mental processes in adapting to the environment.

4. While out for a walk, you come across a ferocious dog. You feel your heart beating faster and your palms begin to sweat. Which part of the peripheral nervous system is activated in this situation?

Correct answer: B

Rationale: The correct answer is B: Sympathetic. When encountering a stressful situation like a ferocious dog, the sympathetic nervous system is activated, leading to the 'fight or flight' response. This response triggers physiological changes like increased heart rate, sweating, and heightened alertness to prepare the body to deal with the perceived threat. The autonomic nervous system (Choice A) encompasses both the sympathetic and parasympathetic divisions, so it's a broader category. The parasympathetic nervous system (Choice C) is responsible for the body's 'rest and digest' functions, which are opposite to the physiological changes seen in a stress response. The somatic nervous system (Choice D) controls voluntary movements and sensory information, not the physiological responses seen in a stress reaction.

5. What major departure did Freud's position have from prevailing viewpoints around the early 1900s?

Correct answer: B

Rationale: Freud's major departure from prevailing viewpoints around the early 1900s was that he viewed people as not fully aware of the forces that control their behavior. This is reflected in his emphasis on unconscious forces influencing behavior. Choice A is incorrect as Freud focused on psychological rather than solely biological causes. Choice C is incorrect as Freud's theory did not emphasize free will but rather unconscious drives. Choice D is incorrect as Freud emphasized internal psychological forces over external environmental factors.

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