EXAM 1 Flashcards
What is Psychology?
Psychological science is the study, through research, of mind, brain, and behavior.
What is the scope of Psychological Science?
psychology + science
mind/brain/behavior + study/research/critical thinking
What practices can you take to exercise critical thinking?
Critical thinking - Systematically questioning and evaluating information using well-supported evidence.
exercises - examine evidence, considered alternative reasonings, apply logic and reasoning
Identify and explain the common biases you can encounter.
-Ignoring evidence
-Seeing casual relationships that do not exist
-Accepting after-the-fact explanations
-Taking mental short cuts
-Self-severing bias
Explain the mind/body problem and the nature/nurture debate
MIND/BODY - Are mind and body separate and distinct, or is the mind simply the
physical brain’s subjective experience?
~Early scholars: The mind is entirely separate from and in control of the body.
~1500s: Leonardo da Vinci challenged dualism, link between brain and mind
~1600s: Cartesian dualism, mind and body mostly separate, though some
mental functions resulted from bodily functions
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NATURE/NURTURE- debate on the origin of mental life
~Ancient Greek philosophers Aristotle and Plato debated
the source of human psychology
~ Current conclusion: mutual influence, inseparable
What is the theory of dualism and how do psychologists view it today?
The theory of dualism is the mind and the body are two separate and distinct entities that interact with each other.
It was proposed by the philosopher Rene Descartes in the 17th century
What are the tenets of William James’ theory of functionalism
-Functionalism: An approach to psychology concerned with the adaptive purpose, or function, of mind and behavior.
-Strem of concisions: A phrase coined by William James to describe each person’s continuous series of ever-changing thoughts.
-Mind is complex and can not be broken down by its elements
What are the major advancements in biology studies that help
understand psychological phenomena?
3 major advances
-Brain imaging
-Genetics and epigenetics
-immunology and other peripheral systems
Name the four levels of analysis and identify Multilevel and Interdisciplinary study scope
Multilevel and Interdisciplinary study: Biopsychosocial + cultural model, combining levels from different field yields more insight.
4 levels:
Biological
Individual
Social
Cultural
What are the 3 primary goals of science?
Description
Prediction
Explanation
What are the steps to the scientific method?
Research Question –>Review –>
Hypothesis –>Design study –>
Conduct study –>
Analyze data–>Report results
A theory is generated based on evidence from many observations and refined based on hypothesis tests (scientific studies). The theory guides scientists in casting one or more testable hypotheses. Scientists then conduct research to test the hypotheses. Sound research produces findings that will prompt scientists to reevaluate and adjust the theory. A good theory evolves over time, and the result is an increasingly accurate model of some phenomenon.
What is the difference between theories, hypotheses, and research?
Theories - explanation based on observation
Hypothesis - prediction based on the theory
Research - Test of the hypothesis. This test yields data to support or disprove theory
What are the differences between descriptive studies, correlational
studies, and experiments?
Descriptive: The use of observation to
provide an objective and
systematic account of a
phenomenon
Correlational: The use of description and
prediction to understand
how naturally existing
variables interact
Experimental: The use of manipulation and
measurement of variables to
establish cause and effect
What are the goals, pros and cons of the three overarching types of research?
Descriptive
PROS: inexpensive, gather quick data
CONS: can establish casual relations between variables
Correlation
PROS: ethical option for studying some variables
CONS: correlation does not mean causation
Experimental
PROS: can be more controlled
CONS: designed to promote desired outcome
What three characteristics reflect the quality of data?
a. Why are these important?
Data should be reliable, valid, accurate
Important: errors in research can lead to wrong conclusions
What is the difference between random sampling and random
assignment?
What purpose does each serve in research?
random sampling- SELECTING participants to be in an experiment
random assignment- PLACING participants in conditions
Compare and contrast descriptive and inferential statistics.
Descriptive statistics: provide data summary, share results (mean, median, mode, standard deviation)
Inferential statistics: set of procedures used to make judgments about whether
differences actually exist between sets of numbers
Describe the questionable research practices discussed in class
Small samples:
HARKing: hypothesizing after the results are known
P-hacking: running many statistical analyses until one
is significant (p-value less than .05)
Underreporting null effects:choosing not to publish
(or being unable to publish) non-significant results
What is Open Science?
Open science is the movement to make scientific research accessible to all levels of society, amateur or professional.
Describe the functions of the Central nervous system
brain and spinal cord
is the mastermind of the body, controlling thoughts, emotions, movements, and senses.
Describe the functions of the Peripheral nervous system
consists of all the other nerve cells in the rest of the body and includes the somatic and autonomic nervous system
Describe the functions of the Somatic system
made up of neurons that connects brain and spinal cord to muscles and joints
Sends signals d=from brain and spinal cord to muscles and joints
Describe the functions of the Autonomic system
Glands and internal organs communicate with brain and spinal cord
messages from the brain to the organs -> Sympathetic nervous system & parasympathetic nervous system
Describe the functions of the Sympathetic division
sub-division of Autonomic system when the brain sends signals to the glands and responds to emergency situations by mobilizing and controlling the energy necessary to cope with the situation.
Describe the functions of the Parasympathetic division
sub-division of Autonomic system when the brain sends signals to the glands and controls the non immediate/ danger related body functions, “rest and digestion”
What are neurons?
What are the different types of neurons and their
functions?
Neurons: basic unit of a neuron system, communicate with other neurons via chemical signals
Types
Sensory (afferent): detect information from physical
world and pass that information to brain
- Somatosensory nerves provide information
from the skin and muscles. - Motor (efferent): direct muscles to contract or relax
- Interneurons: communicate between sensory and
motor neurons
How are neurons structured?
Draw it and definitions
Dendrites: are short, branchlike appendages that detect chemical signals from neighboring neurons
cell body: the information received via the dendrites from thousands of other neurons is collected and integrated.
Axon: Once the incoming information from many other neurons has been integrated in the cell body, electrical impulses are transmitted along a long, narrow outgrowth
Myelin sheath: A fatty material, made up of glial cells, that insulates some axons to allow for faster movement of electrical impulses along the axon.
Node of Ranvier: Small gaps of exposed axon between the segments of myelin sheath, where action potentials take place.
Terminal Buttons: At the end of each axon are knoblike structures
Synapse: The site where chemical communication occurs between neurons
How do neurons communicate with each other?
Describe the electrical
and chemical processes that occur in neural communication.
Neurons transmit information through electrical and chemical signals in the nervous system
STEPS:
1) receives signals from other neurons through its dendrites
2) signal triggers action potential, action potential travels along the axon
3) action potential reaches the end of the axon, terminal button. Then, release of neurotransmitters, chemical messengers, into the synaptic cleft,
4)neurotransmitters bind to receptors on the dendrites of the next neuron
How do agonists and antagonists influence the action of
neurotransmitters?
Agonists and antagonists are substances that affect the activity of neurotransmitters by binding to their receptors on the postsynaptic cell. Agonists increase the effect of a neurotransmitter, while antagonists decrease or block it.
Describe the structure and function of the Cerebral cortex
Cerebral cortex: the outer layer of brain tissue, which forms the convoluted
surface of the brain; the site of all thoughts, perceptions, and complex
behaviors
Describe the structure and function of the Frontal lobe
Regions of the cerebral cortex—at the front of the brain—important for movement and higher-level psychological processes associated with the prefrontal cortex
Describe the structure and function of the Prefrontal cortex
located in the frontmost portion of the frontal lobes, important for attention, working memory, decision making, appropriate social behavior, and personality.
Describe the structure and function of the primary motor cortex
located in the frontal lobe
The primary motor cortex includes neurons that project directly to the spinal cord to move the body’s muscles
For example, the left hemisphere controls the right arm, whereas the right hemisphere controls the left arm
Describe the structure and function of the parietal lobe
Located in cerebral hemispheres
The left hemisphere receives touch information from the right side of the body, and the right hemisphere receives touch information from the left side of the body.
Describe the structure and function of the primary somatosensory cortex
a strip in the front part of the lobe that runs along the central fissure from the top of the brain down the sides
processing stomatic sensations
where the parietal lobe touch information gets sent
Describe the structure and function of the Temporal lobe
hold the primary auditory cortex, the brain region responsible for hearing.
At the intersection of the temporal and occipital lobes is the fusiform face area.
Describe the structure and function of the Primary auditory cortex
In Temporal cortex
hold the primary auditory cortex, the brain region responsible for hearing.
Describe the structure and function of the Occipital lobe
At the intersection of the temporal and occipital lobes is the fusiform face area.
visualcortexes how we see and interprite visuals
Describe the structure and function of the Primary visual cortex
the part of the brain that processes visual information from the eyes
in the occupational lobe
Describe the structure and function of the Insula
is a part of the cerebral cortex
control taste, pain, and empathy (insula); relay of sensory information (the thalamus); vital functions (the hypothalamus); memories (the hippocampus); threat and fear (the amygdala); and the planning and production of movement and reward circuitry (the basal ganglia).
Describe the structure and function of the Subcortical regions
In Insula
sensory information (the thalamus)
Describe the structure and function of the Thalamus
In insula
relay of sensory information (the thalamus)
Describe the structure and function of the Hypothalamus
In Insula
vital functions (the hypothalamus)
Describe the structure and function of the Hippocampus
In Insula
memories (the hippocampus)
Describe the structure and function of the Amygdala
In insula
threat and fear (the amygdala)
Describe the structure and function of the Basal ganglia
In insula
the planning and production of movement and reward circuitry (the basal ganglia).
what is brain plasticity?
quality of the brain, enables change when exposed to
experience or injury
most plasticity when we are babies
In what ways do the nervous system and endocrine system interact with one another?
Endocrine glands produce and release chemical substancesto communicate to the nervous system
Define consciousness
One’s moment-to-moment subjective experience of the world.
qualities:
*Internal and subjective
* Involves sensory input
* Associated with brain activity
* Can be manipulated, contain
errors
* Varies from person to person
* Limited, selective
How are consciousness and attention related?
- go hand and hand
*Attention selects what enters your limited consciousness - What are you focusing on
What is the difference between unconscious and automatic processing?
Automatic processing refers to cognitive activities that are relatively fast and require few cognitive resources.
unconscious processes are executed automatically, in response to certain stimulus conditions. (you continue to breath when you are sleeping)
What are some effects of meditation on consciousness?
Concentrative or
Mindfulness
* Health benefits:
* Improved blood
pressure, cholesterol
level in heart patients
* Less anxiety, more brain
activity consistent with
+ emotional state after
8 week meditation
course
* long term practice may change brain
What are the advantages and disadvantages of Hyperfocus?
highly focused attention that lasts a long time. You concentrate on something so hard that you lose track of everything else going on around you
Bad:hyperfocus is thought to result from abnormally low levels of dopamine, a neurotransmitter that is particularly active in the brain’s frontal lobes, unmanagement , hard to “shift gears
Good: you can consentrate get something done
what is a flow state?
Losing yourself in an
activity
* Physical exertion
* Spiritual transcendence
* Flow
* Flow is absorbing and
satisfying
* “Just right” challenge