Question

1. a particular chemical signal being transmitted to a neuron is said to be stronger if the magnitude of the incoming electrical signal at the axon potential. if the magnitude of the incoming electrical signal at the axon potential will

a. be twice as strong
b. travel twice as fast down the axon
c. last twice as long
d. undergo no changes in strength, speed, or duration

1. the two major divisions of the nervous system are the ____ and ____.

a. parasympathetic; sympathetic nervous systems
b. autonomic; sympathetic nervous systems
c. autonomic; somatic nervous systems
d. central; peripheral nervous systems

1. the effects of neurotransmitters tend to be ____, whereas the effects of hormones tend to be ____.

a. slower; a shorter duration
b. faster; longer lasting
c. slower; longer lasting
d. faster; a shorter duration

1. in a ______ study, both the researchers and the participants are unaware of the group assignments.

a. pilot
b. control
c. double - blind
d. randomly assigned

1. a group of preschool - age children are enrolled in a study that plans to follow them over time in order to assess behaviors and other characteristics that may predict later development of schizophrenia. this is an example of a(n) ______ design.

a. cross sectional
b. experimental
c. survey
d. longitudinal

1. damage to the cerebellum is most likely to impair which of the following?

a. processing visual information
b. regulating emotions
c. forming new memories
d. motor coordination

1. psychology refers to the ______.

a. scientific study of the mind and behavior
b. systematic study of human interaction
c. experimental study of individuals
d. empirical study of humanity

Explanation:

1. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). This is a fundamental classification in the study of the nervous system.
2. Neurotransmitters act quickly at synapses but their effects are short - lived, while hormones are released into the bloodstream and have longer - lasting effects.
3. In a double - blind study, both researchers and participants are unaware of group assignments to eliminate bias.
4. A longitudinal study follows the same group of individuals over an extended period of time to observe changes.
5. The cerebellum is mainly responsible for motor coordination. Damage to it would most likely impair this function.
6. Psychology is defined as the scientific study of the mind and behavior.

Answer:

1. d. central, peripheral nervous systems
2. d. faster, a shorter duration
3. c. double - blind
4. d. longitudinal
5. d. Motor coordination
6. a. scientific study of the mind and behavior