Unit 1 Terms

Question 1

Nature

Answer 1

Innate characteristics and behaviors of a person

Question 2

Nurture

Answer 2

Environmental factors that influence the behaviors and development of a person

Question 3

Independent Variable

Answer 3

Variable the experimenter manipulates/changes

Question 4

Dependent Variable

Answer 4

Variable that may change in response to manipulating the independent variable

Question 5

Experimental method

Answer 5

The researcher manipulates one or more variables to see how it influences another variable

Question 6

Correlational method

Answer 6

Examines whether and how two variables change together

Question 7

Action Potential

Answer 7

Positive electrical charge that travels down the axon

Question 8

Resting Potential

Answer 8

Stable, negative charge of an inactive neuron
- Between -60 and -75 millivolts (mV)

Question 9

All-or-none principle

Answer 9

When an electrical impulse reaches its threshold, it fires and travels all the way down the axon
- Action potential will either happen completely or not at al

Question 10

Afferent

Answer 10

Nerves that carry info to the brain and spinal cord

Question 11

Efferent

Answer 11

Nerves that carry info out of brain and spinal cord to other areas of the body

Question 12

Nervous System

Answer 12

The body’s electrochemical communication circuitry

Question 13

CNS

Answer 13

The brain and spinal cord

Question 14

PNS

Answer 14

Nerves that connect the brain and spinal cord to other parts of the body