PSYCH

________ study how the interaction of genes and the environment cause individual differences in behavior. - Historical psychologists - Behavioral geneticists - Evolutionary psychologists - behavioral psychologists

- Behavioral geneticists

________, which play a supportive role in the nervous system, vastly outnumber ________. Neurotransmitters; axons. Glial cells; neurons Neurons; glial cells Axons; neurotransmitters.

- Glial cells; neurons

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

- action potential The action potential moves from the cell body, down the axon and to the axon terminals.

The study of how the same genotype may lead to different phenotypes is known as - genetic environmental correlation - range of reaction - epigenetics - behavioral genetics

- epigenetics Epigenetics is the study of heritable phenotype changes that do not involve alterations in the DNA sequence.

Stephen has a tumor in his brain and doctors want to assess what areas are impacted. They want a clear picture of the brain, but also want to see changes in the brain's blood flow. What imaging technique will they use? - functional MRI (fMRI) - electroencephalography (EEG) - computerized tomography (CT) scan - positron emission tomography (PET)

- functional MRI (fMRI) An fMRI would show a change in metabolic activity over time and would allow a doctor to assess changes in blood flow.

Political attitudes, how much television people watch, and whether or not people get divorced are all influenced by - genetics. - what type of news they watch. - parental attitudes. - the preferences of siblings.

- genetics

Which of the following areas is NOT located in the frontal lobe of the brain? - motor cortex - hippocampus - control panel - Broca's area

- hippocampus

The pituitary gland, sometimes called the "master gland," carries out instructions from the ________. - adrenal gland - thyroid gland - pancreas - hypothalamus

- hypothalamus The hypothalamus links the nervous system and the endocrine system and directs the release of hormones by the pituitary gland.

Agonists and antagonists mimic or impede neurotransmitters by binding to ________. - the cell membrane - nothing - axons - receptors

- receptors Both agonists and antagonists bind to receptors, either increasing or decreasing effects on the effects of neurotransmitters.

The longitudinal fissure - describes the hemispheres of the brain - is a large network of neurons on the cerebral cortex. - is a thick band of neural fibers enabling communication between the two brain hemispheres. - separates the brain into two halves.

- separates the brain into two halves. The longitudinal fissure is the deep groove that separates the brain into two halves.

The ________ nervous system is involved in the relay of sensory and motor information to the central nervous system. - sympathetic - parasympathetic - somatic - autonomic

somatic The somatic system relays sensory and motor information to the CNS

Physiological changes such as those activated when Sarah hears spooky sounds while she's out for a run (her pupils dilate, her heart rate and blood pressure increase, etc.) are known as - somatic response - homeostasis. - the fight-or-flight response. - parasympathetic responses.

the fight-or-flight response. The fight-or-flight response allows our bodies to respond to highly stressful situations, it prepares us to respond quickly.

Structures that produce the neurotransmitter dopamine and aid in movement are the substantia nigra and the ________, both found in the midbrain. - hippocampus - ventral tegmental area - medulla - pons

ventral tegmental area