Studyguide 01 Flashcards
What is psychology?
The scientific study of behavior and mental processes.
What are the four goals of psychology?
are to describe, predict, explain, and control or influence behavior and mental processes.
Who is Sigmund Freud? What did he emphasize in the psychoanalytic perspective?
He was a psychologist. People called him the father of modern psychology. He emphasized the role of unconsciousness conflicts in determining behavior and personality.
What did behaviorists believe in and what did they reject
Behaviorism rejected the emphasis on consciousness and promoted by structuralism and functionalism. It also rejected Freudian notions about unconscious influences.
What did Carl Rogers and Abraham Maslow emphasize in humanistic psychology?
School of psychology and theoretical viewpoint that emphasizes each person’s unique potential for psychological growth and self-direction
What did Maslow identify as human needs and in what order (i.e., now the pyramid!)?
Maslow needs are ordered as physiological needs, safety needs, love and belonging, esteem, self-actualization.
Biological prospect
emphasizes studying the physical bases of human and animal behavior, including the nervous system, endocrine system, immune system, and genetics.
Psychodynamic
they do tend to emphasize the importance of unconscious influences, early life experiences, and interpersonal relationships in explaining the underlying dynamics of behavior or in treating people with psychological problems.
Behavioral
School of psychology and theoretical viewpoint that emphasizes each person’s unique potential for psychological growth and self-direction.
Humanistic
focuses on the motivation of people to grow psychologically, the influence of interpersonal relationships on a person’s self-concept, and the importance of choice and self-direction in striving to reach one’s potential.
Positive
focusing on the study of positive emotions and psychological states, positive individual traits, and the social institutions that foster those qualities in individuals and communities
Cognitive
focused once again on the important role of mental processes in how people process and remember information, develop language, solve problems, and think.
What is the scientific method?
refers to a set of assumptions, attitudes, and procedures that guide researchers in creating questions to investigate, in generating evidence, and in drawing conclusions.
what are the four steps involved
- Formulate a specific question that can be tested.
- Design a study to collect relevant data.
- Analyze the data to arrive at conclusions.
- Report the results
empirical evidence
evidence that is the result of objective observation, measurement, and experimentation.
operational definition
defines the variable in very specific terms as to how it will be measured, manipulated, or changed.
statistically significant
it means that the results are not very likely to have occurred by chance.
Case studies
involve compiling a great deal of information from numerous sources to construct a detailed picture of the person.
Naturalistic observation
When psychologists systematically observe and record behaviors as they occur in their natural settings
Survey
people respond to a structured set of questions about their experiences, beliefs, behaviors, or attitudes.
Correlational studies
how to variables relate to each other
Descriptive research and example
designs include strategies for observing and describing behavior.
such as a person’s age, ethnic group, or educational level.
Cross- sectional design and example
studies a variable or set of variables among a group of participants at a single point in time. Often, the participants are of different ages or developmental stages. For example, to study the effect of aging on memory, developmental psychologists might compare memory abilities in participants aged 25, 45, and 55, looking for age-related differences.
longitudinal design
tracks a particular variable or set of variables in the same group of participants over time, sometimes for years. For example, a longitudinal study of the effect of college-readiness programs on academic achievement might compare the academic records of participants who enrolled in college-readiness programs versus participants who did not, following all the participants from high school through college graduation.
Confounding Variable variables
experiment could include unwanted variability in such factors as age, gender, ethnic background, race, health, occupation, personal habits, education, and so on.
demand characteristics
These are subtle cues or signals that can bias the outcome of the study by communicating the behavior or response that is expected of the participants.
double-blind technique
both the researchers and the researchers interacting with them are blind.
Single Blind
the participants do not know the full conditions of what the experiment outcome is going to be
Physiatrist
prescribes medicine
Neuron
A cell that communicates information in electrical and chemical form; a nerve cell.
Sensory (afferent Neuron):
Sends information to the brain from receptor cells in internal organs and sense organs.
• E.G from the skin to the brain
• Motor efferent Neurons: Signals muscles to move
•
Interneuron: Communicates information from one neuron to another
Glial Cells:
- supports cells assisting neurons
- provide structural support, nutrition, removal of cell wastes
- manufacture myelin sheath, wrapped around axons of some neurons, increasing their communication speed
Dendrites
receive messages from other neurons or specialized cells
Cell Body
contains structures that manufacture proteins and process nutrients, providing the energy the neuron needs to function.
axons
carry information from the neuron to other cells in the body, including other neurons, glands, and muscles.
myelin
helps insulate one axon from the axons of other neurons.
Terminal Branches:
• Branches at the end of the axon
Synapse
A communication point between two neurons separated by the synaptic gap/
Presynaptic:
Sending
Postsynaptic neuron
receiving
Synaptic transmission
The entire process of transmitting information at the synapse
Action potential
Movement of electrical impulse across membrane of a nerve cell
stimulus threshold
Minimum level of stimulation required to produce an action potential
Resting potential
State in which a neuron is prepared to produce an action potential if it receives significant stimulations; -70mv
Self-sustaining
Action potential is self sustaining and continues to the end of the axon; no such thing as partial action potential. (it will occur through the whole neuron.)
All-or-none law:
Either the neuron is sufficiently stimulated and an action potential occurs, or the neuron is not sufficiently stimulated and an action potential does not occur.
Repolarization
process reestablishes the resting potential conditions so that the neuron is capable of firing again
Hyperpolarization
It becomes more negative (-)
Depolarization:
: Cell becomes more positive
How does an action potential (generated in the presynaptic neuron) enable communication between neurons?
In general, messages are gathered by the dendrites and cell body and then transmitted along the axon in the form of a brief electrical impulse called an action potential. The action potential is produced by the movement of electrically charged particles, called ions, across the membrane of the axon. Some ions are negatively charged, while others are positively charged.
How do drugs affect synaptic transmission?
- any drugs work by interfering with the normal functioning of neurotransmitters in the synapse
- Increases or decreases amount of neurotransmitters released by neurons
what is an agonist and antagonist
- Blocking or reducing time of reuptake (antagonist)
* Mimicking Specific neurotransmitters (agonist)
What are the two main branches of the nervous system?
a. Central Nervous system: Brain and spinal cord
Peripheral Nervous system: All other nerves outside CNS
• Somatic Nervous System
Communicates sensory information to CNS and motor information to CNS and motor information from CNS to muscles
• Autonomic nervous system:
Regulates fight for flight (Sympathetic, parasympathetic)