Psychobiology MCQ
In comparison to activating effects, organizing effects of hormones take place ____.
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Correct Answer:
Earlier in life and produce more long-lasting effects
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The capacity of stress to ________ would predispose an organism to develop an infectious illness.
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Correct Answer:
Inhibit the immune system
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One way that estrogen increases sexual responsiveness is by ____.
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Correct Answer:
Synchronizing activity between the hypothalamus of the left and right
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____ steer new axonal branches and synapses in the right direction.
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Correct Answer:
Neurotrophins
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Autoreceptors monitor the ____.
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Correct Answer:
Amount of neurotransmitter released
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After cells have differentiated as neurons or glia, they ____.
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The human brain starts to resemble a _____________ by the 28th day of embryonic development.
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Correct Answer:
Hollow tube
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The ________ plays a key role in the extinction of drug responding.
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Correct Answer:
Ventromedial prefrontal cortex (vmPFC)
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Humans exposed to the stress of ________ show evidence of brain degeneration in ct scans.
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Deep brain stimulation of the ________ can alleviate the symptoms of parkinson's disease.
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Correct Answer:
Subthalamic nucleus.
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More cases of child abuse are perpetrated by _____________ than any other group.
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Olfactory information is coded in receptor cells through ____.
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Correct Answer:
hundreds of types of receptor molecules, each responsive to a different chemical
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_______ is a sound quality whereby a sound is heard to be of higher or lower pitch.
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Correct Answer:
Tone height
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A melody is defined by the _______, rather than by an exact sequence of sound frequencies.
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Correct Answer:
Pattern of rises and falls in pitch
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For an association claim, you should interrogate all of the following validities except __________.
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A study finds a correlation coefficient of r = .32 and reports p < .05. the p is a/an ________.
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Correct Answer:
Probability estimate
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Empowerment and egalitarianism are the basis of the ________ therapeutic relationship.
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A tonotopic map refers to a(n) ____.
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Correct Answer:
Auditory cortex map of sounds
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A symptom of right-hemisphere parietal lobe damage is the tendency to ignore the ____.
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Correct Answer:
Left side of the body
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A person who sees spoken language or music may be experiencing ____.
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Correct Answer:
Synesthesia
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A neuron excretes neurotransmitters through its membrane by a process called ____.
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Correct Answer:
Exocytosis
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In castrated male rats, the medial preoptic area ____.
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Correct Answer:
has as much dopamine as normal rats, but the presence of a receptive female does not evoke much release of it
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Sherrington inferred the presence of a gap between neurons based on ________ .
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Correct Answer:
Slower than predicted speed of conduction
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The major disadvantage of a blood-brain barrier is that ____.
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Correct Answer:
Certain required chemicals must be actively transported
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Areas bordering the primary auditory cortex are important for ____.
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Correct Answer:
Analyzing the meaning of sounds
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Sigmund freud is responsible for revolutionary ideas and the __________ theory.
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Correct Answer:
Psychoanalytic
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Ischemia is to ____ as hemorrhage is to ____.
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Correct Answer:
Obstruction; rupture
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In development, neurotrophins ____. during adulthood, they ____.
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Correct Answer:
Preserve neurons; increase neuronal branching
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The relationship between behavior and biology is ____.
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Correct Answer:
Reciprocal: biology affects behavior and vice versa
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The membrane of a neuron is composed of ____ with ____ embedded in them.
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Correct Answer:
Fat molecules; proteins
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Protein channels allow ____ molecules to cross the cell membrane.
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Correct Answer:
Small charged
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Neurons typically have one ____, but many ____.
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Correct Answer:
Axon; dendrites
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The brain gets part of its information regarding low osmotic pressure from ____.
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Correct Answer:
Receptors around the third ventricle
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According to erik erikson, personality develops _____.
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Correct Answer:
Over the entire life span
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In the nervous system, the job of the axons is to ________ other neurons.
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Correct Answer:
Transmit action potentials to
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A phenotype can consist of _____ as well as _____ characteristics.
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Correct Answer:
Physical; psychological
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A human egg contains ________ chromosome and a human sperm contains ________ chromosome.
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Correct Answer:
An X; either an X or a Y
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A ______ will always be expressed in the observable trait.
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Correct Answer:
Dominant gene
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_____ refers to the process of gathering information about the world through our senses.
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Correct Answer:
Perception.
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The endocrine system responds to input from the nervous system, particularly from the ____.
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Correct Answer:
Hypothalamus
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The endocrine system is directly involved with ____.
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Correct Answer:
arousal, metabolism, growth and sex
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The rods of the retina are the main receptors of the _______ visual system.
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The fight-or-flight response is to ________ as the general adaptation syndrome is to ________.
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Correct Answer:
Walter Cannon; Hans Selye
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The difference between neurons in the pns and neurons in the cns is that _____.
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Correct Answer:
Neurons in the PNS can regenerate
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The release of cortisol during the fight-or-flight response occurs at the end of the _____ pathway.
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Correct Answer:
Pituitary, Adrenal cortex, Hypothalamus
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As compared to dendrites, axons usually ____.
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Correct Answer:
Are covered with myelin
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The secretion of pyy _____ hunger and the secretion of orexin _____ hunger.
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Correct Answer:
Decreases; increases
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Stimulation of the pontomesencephalon ____.
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Correct Answer:
Awakens a sleeping individual
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Somatic is to autonomic what _____ is to _____.
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Correct Answer:
Voluntary; involuntary
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Müllerian ducts are found in ____.
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Correct Answer:
Female and male fetuses early in development
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Active transport of molecules across membranes requires atp because __________.
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Correct Answer:
The molecules are moved against the concentration gradient (uphill)
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A dopamine pill is ineffective for treating parkinson's disease because it ____.
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Correct Answer:
does not cross the blood-brain barrier
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A cross section of the spinal cord indicates that gray matter is ____.
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Correct Answer:
Densely packed with cell bodies and dendrites
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