Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AP Psychology > Unit 3: Biological Bases of Behavior > Flashcards

Unit 3: Biological Bases of Behavior Flashcards

Modules: 9 - Biological Psychology and Neurotransmission 10 - The Nervous and Endocrine Systems 11 - Studying the Brain, and Older Brain Structures 12 - The Cerebral Cortex 13 - Brain Hemisphere Organization and Biology of Consciousness 14 - Behavior Genetics: Predicting Individual Differences 15 - Evolutionary Psychology: Understanding Human Nature

You may prefer our related Brainscape-certified flashcards:
AP® Psychology flashcards Psychology 101 flashcards GRE® Psychology flashcards
1
Q

Biological Psychology

A

The scientific study of the links between biological and psychological processes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Neuron

A

A nerve cell; the basic building block of the nervous system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Dendrites

A

A neuron’s bushy, branching extensions that receive messages and conduct impulses toward the cell body.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Axon

A

The neuron extension that passes messages through its branches to other neurons or to muscles or glands.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Myelin Sheath

A

A fatty tissue layer segmentally encasing the axons of some neurons; enables vastly greater transmission speed as neural impulses hop from one sausage-like node to the next.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Action Potential

A

A neural impulse; a brief electrical charge that travels down an axon.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Refractory Period

A

A period of inactivity after a neuron has fired.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Threshold

A

The level of stimulation required to trigger a neural impulse.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

All-Or-None Response

A

A neuron’s reaction of either firing or not firing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Synapse

A

The junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. The tiny gap at this junction can be ‘gap’ or ‘cleft’.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Neurotransmitters

A

Chemical messengers that cross the synaptic gaps between neurons. When released by the sending neuron, they travel across the synapse and bind to the receptor sites on the receiving neuron, thereby influencing whether that neuron will generate a neural impulse.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Reuptake

A

A neurotransmitter’s reabsorption by the sending neuron.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Endorphins

A

“Morphine Within” - natural, opiate-like neurotransmitters linked to pain control and to pleasure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Agonist

A

A molecule that, by binding to a receptor site, stimulates a response.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Antagonist

A

A molecule that, by binding to a receptor site, inhibits or blocks a response.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Nervous System

A

The body’s speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous systems.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Central Nervous System (CNS)

A

The brain and spinal cord.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Peripheral Nervous System (PNS)

A

The sensory and motor neurons that connect the central nervous system to the rest of the body.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Nerves

A

Bundled axons that form neural “cables” connecting the central nervous system with muscles, glands, and sense organs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Sensory (Afferent) Neurons

A

Neurons that carry incoming information from the sensory receptors to the brain and spinal cord.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Motor (Efferent) Neurons

A

Neurons that carry information from the brain and spinal cord to the muscles and glands.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Interneurons

A

Neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Somatic Nervous System

A

The division of the peripheral nervous system that controls the body’s skeletal muscles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Autonomic Nervous System (ANS)

A

The part of the peripheral nervous system that controls the glands and the muscles of the internal organs. Its sympathetic division arouses; its parasympathetic division calms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Sympathetic Nervous System

A

The division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Parasympathetic Nervous System

A

The division of the autonomic nervous system that calms the body, conserving its energy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Reflex

A

A simple, automatic response to a sensory stimulus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Endocrine System

A

The body’s “slow” chemical communication system; a set of glands that secrete hormones into the bloodstream.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Hormones

A

Chemical messengers that are manufactured by the endocrine glands travel through the bloodstream and affect other tissues.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Adrenal Glands

A

A pair of endocrine glands that sit just above the kidneys and secrete hormones that help arouse the body in times of stress.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Pituitary Gland

A

The endocrine system’s most influential gland. Under the influence of the hypothalamus, this regulates growth and controls other endocrine glands.

32
Q

Lesion

A

Tissue destruction. The brain either is naturally or experimentally caused destruction to the tissue.

33
Q

Electroencephalogram (EEG)

A

An amplified recording of the waves of electrical activity sweeping across the brain’s surface. These waves are measured by electrodes placed on the scalp.

34
Q

Computerized Tomography (CT) Scan

A

A series of X-ray photographs taken from different angles and combined by computer into a composite representation of a slice of the brain’s structure.

35
Q

Positron Emission Tomography (PET) Scan

A

A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task.

36
Q

Magnetic Resonance Imaging (MRI)

A

A technique that uses magnetic fields and radio waves to produce computer-generated images of soft tissues. This shows the brain’s anatomy.

37
Q

fMRI (Functional MRI)

A

A technique for revealing bloodflow and, therefore, brain activity by comparing successive MRI scans. It shows brain function and its structure.

38
Q

Brainstem

A

The oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; this is responsible for automatic survival functions.

39
Q

Medulla

A

The base of the brainstem; controls heartbeat and breathing.

40
Q

Thalamus

A

The brain’s sensory control center, located at the top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla.

41
Q

Reticular Formation

A

A nerve network that travels through the brainstem and thalamus and plays an important role in controlling arousal.

42
Q

Cerebellum

A

The “little brain” at the rear of the brainstem; functions include processing sensory input, coordinating movement output and balance, and enabling nonverbal learning and memory.

43
Q

Limbic System

A

The neural system (hippocampus, amygdala, and hypothalamus) located below the cerebral hemispheres; associated with emotions and drives.

44
Q

Amygdala

A

Two Lima bean sized neural clusters in the limbic system; linked to emotion.

45
Q

Hypothalamus

A

A neural structure lying below the thalamus; it directs several maintenance activities, helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward.

46
Q

Cerebral Cortex

A

The intricate fabric of interconnected neural cells covering the cerebral hemispheres; the body’s ultimate control and information-processing center.

47
Q

Glial Cells (Glia)

A

Cells in the nervous system that support, nourish, and protects neurons; they may also play a role in learning and thinking.

48
Q

Frontal Lobes

A

Portion of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgments.

49
Q

Parietal Lobes

A

Portion of the cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position.

50
Q

Occipital Lobes

A

Portion of the cerebral cortex lying at the back of the head; includes areas that receive information from the visual fields.

51
Q

Temporal Lobes

A

Portion of the cerebral cortex lying roughly above the ears; includes the auditory areas each receiving information primarily from the opposing ear.

52
Q

Motor Cortex

A

An area at the rear of the frontal lobes that controls voluntary movements.

53
Q

Somatosensory Cortex

A

Area at the front of the parietal lobes that registers and processes body touch and movement sensations.

54
Q

Association Areas

A

Areas of the cerebral cortex that are not involved in primary motor or sensory functions; rather, they are involved in higher mental functions such as learning, remembering, thinking, and speaking.

55
Q

Plasticity

A

The brain’s ability to change, especially during childhood, by reorganizing after damage or by building new pathways based on experience.

56
Q

Neurogenesis

A

The formation of new neurons.

57
Q

Corpus Callosum

A

The large band of neural fibers connecting the two brain hemispheres and carrying messages between them.

58
Q

Split Brain

A

A condition resulting from surgery that isolates the brain’s two hemispheres by cutting the fibers (mainly of the corpus callosum) connecting them.

59
Q

Consciousness

A

Our awareness of ourselves and our environment.

60
Q

Cognitive Neuroscience

A

The interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory, and language).

61
Q

Dual Processing

A

The principle that information is often simultaneously processed on separate conscious and unconscious tracks.

62
Q

Behavior Genetics

A

The study of the relative power and limits of genetic and environmental influences on behavior.

63
Q

Environment

A

Every external influence, from prenatal nutrition to the people and things around us.

64
Q

Chromosomes

A

Threadlike structures made of DNA molecules that contain the genes.

65
Q

Deoxyribonucleic Acid (DNA)

A

A complex molecule containing the genetic information that makes up the chromosomes.

66
Q

Genes

A

The biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing proteins.

67
Q

Genome

A

The complete instructions for making an organism, consisting of all the genetic material in the organism’s chromosomes.

68
Q

Identical Twins (Monozygotic Twins)

A

Twins who develop from a single fertilized egg that splits in two, creating two genetically identical organisms.

69
Q

Fraternal Twins (Dizygotic Twins)

A

Twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters; by they share a fetal environment.

70
Q

Molecular Genetics

A

The subfield of biology that studies the molecular structure and function of genes.

71
Q

Heritability

A

The proportion of variation among individuals that we can attribute to genes. This can have a trait vary, depending on the range of populations and environments studied.

72
Q

Interaction

A

The interplay that occurs when the effect of one factor (like environment) depends on another factor (like heredity).

73
Q

Epigenetics

A

The study of environmental influences on gene expression that occur without a DNA change.

74
Q

Evolutionary Psychology

A

The study of the evolution of behavior and the mind, using principles of natural selection.

75
Q

Natural Selection

A

The principle that, among the range of inherited trait variations, those contributing to reproduction and survival will most likely be passed on to succeeding generations.

76
Q

Mutation

A

A random error in gene replication that leads to a change.

AP Psychology (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions