Psych Quiz 2

receptors and nothing, since they do not bind

Agonists bind to ________ and antagonists bind to ________

Environmental factors and genetic factors interact to determine whether a person is likely to develop schizophrenia

Of adoptees whose biological mothers had schizophrenia and who were raised in disturbed family environments, 36.8% were likely to develop schizophrenia; of adoptees whose mothers did not have schizophrenia and who were raised in disturbed family environments, 5.3% were likely to develop schizophrenia. What is the most appropriate conclusion of these results?

more than one gene

Polygenic means that most traits are controlled by ________.

Biology

Psychological researchers study genetics in order to better understand the ________ that contributes to certain behaviors.

Neurotransmitter

Psychotropic medications are drugs that treat psychiatric symptoms by restoring ________ balance.

the relative contributions of genes and environment in a population

Studying close relatives allows behavioral geneticists to determine ________.

membrane poteential

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

terminal buttons and synaptic vesciles

The ________ of a neuron contain ________ that house neurotransmitters, the chemical messengers of the nervous system.

glial cell

The myelin sheath consists of a(n)________

synapse

The space between the two neurons is called the __________

collection by scavenger vesicles left over from the neurotransmitter release

Which one of the following processes does not occur to excess neurotransmitters in the synapse?

range of reaction

________ asserts that our genes set the boundaries within which we can operate, and our environment interacts with our genes to determine where within those boundaries we will fall.

threshold of excitation

________ is the electrical signal that typically moves from the cell body down the axon to the axon terminals.

increase

in a resting state, sodium (Na+) is at a higher concentration outside the cell and potassium (K+) is more concentrated inside the cell. During an action potential, the sodium levels ________ inside the cell.

evolutionary psychologists

Changes in behavior and cognitive processes over time are studied by ________.

chromosomes and DNA

Human eggs and sperm each contain 23 ________, which are composed of long strands of ________.

membrane potential becomes slightly more negative than the resting potential

Hyperpolarization means that the ________.

genetics

A difference in ________ can explain why one person dies from a disease and another person survives

undergo no changes in strength, speed, or duration

A particular electrical signal being transmitted to a neuron is sufficient to generate an action potential. If the magnitude of the incoming electrical signal is doubled, the action potential will ________.