psy 3

Which of the following is not a disadvantage of PET scanning? There is radiation exposure. An alternative diagnostic tool is fMRI. It is unable to pinpoint events in time. There is a low level of detail.

An alternative diagnostic tool is fMRI.

Rosemary had a stroke about a year ago and now she cannot understand what people are saying to her. This is embarrassing for her, so she responds using vague language and tries to make it appear as though she understands. Which area of Rosemary's brain was likely damaged by the stroke? Broca's area prefrontal cortex Wernicke's area occipital cortex

Wernicke's area

________ is the electrical signal that typically moves from the cell body down the axon to the axon terminals. hyperpolarization action potential depolarization threshold of excitation

action potential

Which type of chemical messenger do the male gonads secrete? androgens estrogens endorphins dopamine

androgens

The ________ is the difference in charge between the intracellular and extracellular space of a neuron. intracellular fluid resting potential extracellular fluid membrane potential

membrane potential

Polygenic means that most traits are controlled by ________. more than one gene a single gene different genes under different circumstances different parts of only a few different genes

more than one gene

The ________ nervous system is responsible for stimulating digestion and causing the bladder to contract. somatic parasympathetic autonomic sympathetic

parasympathetic

Which of the following is not a forebrain structure? hippocampus thalamus amygdala pons

pons

The ________ of a neuron contain ________ that house neurotransmitters, the chemical messengers of the nervous system. terminal buttons; transport proteins axons; terminal buttons dendrites; synaptic vesicles terminal buttons; synaptic vesicles

terminal buttons; synaptic vesicles

Studying close relatives allows behavioral geneticists to determine ________. how behaviors have changed over time the relative contributions of genes and environment in a population the contribution of genes or environment to the behavior in the individuals studied whether genes or environment cause a behavior or trait

the relative contributions of genes and environment in a population

Which of the following conclusions can be drawn from the case study of Phineas Gage's accident, which led to brain injury? Injury to the frontal lobe does not affect behavior. Injury to the brain causes changes in behavior, and specific brain areas are linked to particular behaviors. Frontal lobe injury causes people to be incapable of controlling their emotional impulses. Injury to the brain causes changes in behavior, but specific brain areas are not linked to specific behaviors.

Injury to the brain causes changes in behavior, and specific brain areas are linked to particular behaviors.

________ is a neurotransmitter with roles in pleasure and pain modulation. beta-endorphin norepinephrine GABA acetylcholine

beta-endorphin

________ is a technique often used in studies investigating sleep patterns. Researchers place electrodes at various locations on a person's head in order to record brainwaves. electroencephalography (EEG) magnetic resonance imaging (MRI) functional magnetic resonance imaging (fMRI) positron emission tomography (PET)

electroencephalography (EEG)

The theory of ________ states that organisms that are better suited for their environment will survive and reproduce, while those that are poorly suited for their environment will die off. genetic mutation evolution by natural selection behavioral genetics survivalism

evolution by natural selection

Broca's area is located in which lobe of the brain? parietal occipital frontal temporal

frontal

A difference in ________ can explain why one person dies from a disease and another person survives. genetics nurture evolution behavior

genetics

Which of the following is not a part of the fight or flight response? running away heart rate and blood pressure increases pupils dilate adrenaline surges into the bloodstream

running away

Which of the following senses is not routed through the thalamus? smell audition vision taste

smell

Sensory and motor neurons of the ________ nervous system are associated with activities traditionally thought of as conscious or voluntary. parasympathetic autonomic sympathetic somatic

somatic

The ________ nervous system is responsible for responses such as pupil dilation, increased heart rate, and increased respiration. somatic sympathetic autonomic parasympathetic

sympathetic