Description
Goals for the Exam: Study these 6 parts and you will Succeed 1st Part to Study before Exam:
1. What psychology is and isn’t:
Studying mind and behavior
How this relates to, predicts, and causes brain function
o Behavior: measurable activities of an organism
o The Mind: mental processes- consciousness, emotions,
motivations, cognition
o Roots of Psychology: union of biology, medicine, and philosophy: 54 divisions of American psychological association
o Psychology: MA, PhD, PsyD
Clinical counseling
Does not prescribe medications
Usually performs psychotherapy
Psychiatry: MD
Knowledge restricted to causes and treatments of
psychological disorders
Pharmacotherapy
Doesn’t perform psychotherapy
2. Introduction to Critical Thinking
Curious, skeptical, humble, public
o Curiosity: Children are natural scientists: Buckminster Fuller
Observation and experimentation (objective evidence vs.
experimentation)
Skeptical:
Need a Question
Is there evidence?
Is Evidence Accurate?
Do we have the whole picture?
Humble
Knowledge is tentative and can change
Limitation section in papers- shows humility in research
Public
Try to make knowledge known to the public
Scientists are pressured to come up with reliable conclusions Results in faulty research or scientific misconduct
Vs common sense, intuition, and authority
o Common Sense:
Hindsight Bias: believed an event was predictable
Knew it all along phenomenon: people perceive events that have already occurred as having been more predictable than that
were prior to event happening
Intuition:
effortless, immediate, automatic, feeling or thoughts vs. explicit conscious reasoning
If you want to learn more check out How to define bacteriophage, plaque, pfu, lysogeny, lysogen, lysate, temperate phage, prophage, and host
specificity for viruses
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presence of faulty assumptions: often think we know more than we actually do
o Authority:
Provides a mental short cut that can often be unreliable and inaccurate
Ex: Doctors, politicians, parents, news outlets
3. Mind is Adaptive: how are we able to adapt and change in new environments We can adapt in positive and negative ways
Biologically primed to be afraid of heights: can adapt and overcome o Example of positive adaptation
4. Approaching Understanding: many different levels of analysis Biopsychosocial Approach: ever widening circle of knowledge o Biological: psychical body contributes neurochemical and psychological functions
o Psychological: personality differences that impact how people feel and think
o Social- Cultural: how we interact and influence each other
How different cultures shape thoughts, feelings, and actions of people in them
Guns don’t kill people, people kill people: We also discuss several other topics like Can be used to confirm whether test items fall into hypothesized groups.
Biologically: bullet entered cerebellum and medulla
Psychological: Ex-husband shot her boyfriend
Social- cultural: Despair brought on by poverty and abusive
father/ family
2nd Part to Study before Exam:
History of Psychology: Schools of Thought
Beginning of Psychology: 1879- philosophy, biology, medicine
First lab
o William Wundt Don't forget about the age old question of What is the treatment of intestinal disorders?
o Structuralism: what do we feel
o Introspection (technique of structuralism)
William James
o Functionalism: how and why we feel certain things
The Unconscious:
Human behavior is determined by mental processes operating below the level of awareness
Important role of childhood Experiences
Sigmund Freud
Behaviorism:
Challenged the focus of psychology on conscious and unconscious mental processes
Emphasizes environmental effects on behavior
Behavior can be modified (reward and punishment)
John B. Watson, B.F. Skinner
Social Psychology: 1900-1940’s
Focused on the power of the situation on the way people are shaped through interactions with others
How to understand atrocities in WW1
Beyond the individual
Humanistic Psychology: 1960’s
How people can come to know and accept themselves and be nurtured in order to reach their unique potential
Carl Rogers, Abraham Maslow Don't forget about the age old question of what are the involvement of active and passive transport in muscle function?
Cognitive Revolution:
Focus on how we perceive, process, and remember information Concerned with higher- order mental functions such as intelligence, thinking, language, memory, and decision making We also discuss several other topics like what is the nationality of Eva Hesse?
Cognition affects behavior
Aaron Beck: cognitive behavioral therapies
Positive Psychologists:
Focus on personal growth rather than on pathology
Complements traditional psychological behaviors
Martin Seligman: health is not the absence of an illness
Representation in Psychology:
Mary Whiton Calkins: first to set up a lab
o First female president of APA 1905
Margaret Flay Washburn
o First to receive PhD
Francis Cecil Sumner (1920)
o First to receive PhD
o Furthered field of psychology
Kenneth Bancroft Clark (1914-2005)
o Doll study: 200 black children who were given a choice of a white and a black doll
o Showed psychological damage resulting from segregation
Most research of psychology has come from:
W=western
E= educated
I= industrialized
R= rich
D= democratic
Research Methods
The Scientific Method: Theory, Hypothesis, Research
Theory: organizes facts to simplify information, provide an explanation for behavior, and provide a deeper understanding of a phenomenon
E.g: Cognitive Dissonance- contradiction within myself, shouldn’t be eating animals, but wears animal skin shoes- change behavior or change beliefs to make them unified We also discuss several other topics like The largest single preventable cause of low birth weight in newborns is what?
Describes behavior, makes predictions about future behavior
Hypothesis: Operational Definitions- describes the procedure used to test the theory so that it can be tested and replicated
Research: descriptive, correlational, experimental= replicate
Internal Validity: to what extent can the effects of one variable be attributed to another
Are we able to establish a cause and effect association?
Threats: time, maturity, history, regression to the mean, demand characteristics, experimenter expectancies
External Validity: The extent of the findings applies in other settings at other times, with different participants, when different procedures are used
3rd Part to Study before Exam:
The Scientific Method
Theory: organizes facts to simplify information- provides explanation for behavior and understanding
o Theory of Cognitive Dissonance: people do something that violates their view of themselves and causes uncomfortable state of dissonance that motivates change
Hypothesis: testable prediction- operational definitions describe the procedure used to test a theory and be replicated
Research: goal is to repeat experiment
Internal and External Validity:
Internal- to what extent can effects of one variable be attributed to another extent to which it is free from errors
o Time ( maturation history, regression to the mean)
o Demand characteristics
o Experimenter expectancies ( how participants should preform, affects participants behavior)
External- findings apply in other settings, times, and with different participants when different procedures are used
o Measures accuracy of experiment
o Apply results of study to outside world
Specific Research Methods:
Descriptive
Case Studies: examine individual or group, rarely occurring phenomenon, can’t generalize population
Naturalistic observation: study behavior in natural setting without manipulation or controlling situation (cognitive biases, record keeping, reactivity, influencing events, effects on observer)
Surveys: examines many cases but not in depth
Correlational
What is relationship between 2 variables, direction and shape of relationship o Positive: variables increase and decrease with one another
o Negative: one increases, other decreases
Not a form of cause and effect observation
Experimental
Independent and dependent variables, confounding variables Defining Characteristics:
o Manipulation- instead of measurement of iv
o Holding all other variables constant
o Participants are equal
Conditions of IV: control, comparison, experimental
o Equivalence in experience lets you rule out nonspecific treatment effects or placebo effects
Validity and Reliability:
Validity: does data address hypothesis
Reliability: stability and consistency of measurements
Measures of central tendency:
Central tendency- value around which scores cluster and typical data set Designed to summarize data with single number- mean, median, mode o Mean- average
o Median- middle score
o Mode- most common score
Measures of variability:
Provide and idea of how similar and diverse scores are
Range and Standard Deviation
o Range: highest minus lowest
o Standard Deviation: small (don’t deviate much from mean) large (deviates greatly from mean)
Inferential Statistics: whether effects are real or are due to chance
If findings have a low possibility of just coming from chance, then it is seen as a significant study
Results occur less than 5/100 because of chance factors alone Epistemology: logical positivism and humanistic perspective
Logical: tightly controlled experiments
o Logical analysis of data
Humanistic: logic made to serve people
o People best studied in natural environments
o Scientist is empathetic and intuitive
4th Part to Study before Exam:
Biology of the Mind:
Nervous System- biological system created for communication throughout body Neurons: dendrite, axon, axon terminal, synapsis, etc.
Glial Cell: removes dead neurons and protects living neurons
Support brain structure by maintaining neuron structure
Micro level: communication through neurotransmitters
Nervous System-
CNS
o Brain and spinal cord
PNS
o Somatic ( voluntary control) and autonomic (involuntary control) systems
o Autonomic: sympathetic (responds to threats) and parasympathetic (returns body to resting state)
Nerves
Neurons: sensory (afferent), motor (efferent), interneurons
CNS: Spinal Cord
Conveys information from the PNS to the brain- incoming sensory data and outgoing movement commands to muscles
Coordinates spinal reflexes- simple automatic actions not involving the brain Brain: old and new
Old: basic functions, memory, emotions, basic drives
o Brainstem( heartbeat and breathing), medulla( heartbeat and breathing), pons (movement and sleep), thalamus (sensory relay), reticular formation (arousal and alertness), cerebellum (movement, balance, learning movements unconsciously)
Limbic System: emotional expression, memory, motivation
o Amygdala (emotion, fear, memory), hypothalamus (hunger, body temp, body clock), hippocampus (memory, neural maps of places and memory formation)
New: perceiving, thinking, speaking
o Cerebrum- cerebral cortex- covers two hemispheres- mental activity billions of neurons
Gray matter- surface
White matter, inner brain structures
Lobes: frontal (planning, movement, personality), parietal
( touch and body awareness) , occipital (primary visual center), temporal (reception and auditory stimulation)
Central fissure and longitudinal fissure
Prefrontal cortex (rational activity), motor association area,
Primary motor cortex, primary somatosensory area, primary
sensory cortex, sensory association area, visual association
area, visual cortex
Corpus Callosum: two hemispheres communicate, split brain if severed
Left Hemisphere: language, math, logic, analytical thinking
Right Hemisphere: verbal associations, creativity, visual and spatial reasoning, auditory processing
Hemineglect: damage to right parietal lobe- fail to notice
anything on left side
5th Part to Study before Exam:
Consciousness: awareness of ourselves and environment- different states of consciousness
Automaticity: level of awareness of behaviors
Dual Processing: conscious and unconscious track
Novel Problems: uncertainties associated with performance and require you to attend and to evaluate present information
Habitual Action: does not require continuous attention to behavior or circumstances, free up thoughts
Visual Attending:
primitive features at same time, attend one feature- Parallel Processing 2 features take longer and requires more attention- sequential processing
Auditory Attending:
Difficult to perform 2 tasks at same time- selective
Selective Inattention: limited capacity for sensory information so we screen incoming information only letting in most important info
Inattention blindness
Change blindness- cannot attend everything- influences memory Circadian Rhythm: body clock
Light, dark most powerful zeitgeber
Regulated by suprachiasmatic nucleus
Diurnal vs nocturnal
Stages of Sleep: NREM (90 mins), REM sleep
NREM 1: 5-15 mins
o Light sleep
o Sense of falling
o Non rapid eye movement
NREM 2: 5-15 mins
o Light sleep
o Body temp drops
o Slow heart rate
o Non rapid eye movement
NREM 3: 5-15 mins each
o Wave like sleep, deepest sleep
o Body repairs itself
o Non rapid eye movement
REM- 10 mins first cycle
o Dreaming
o High brain activity
o Rapid eye movement
o Sleep cycle resets
Sleep Regulation:
Homeostatic
Circadian
Sleep Disorders:
Insomnia: difficulty initiating sleep or staying asleep
o Predisposing-worry, hyperactivity, old age, female
o Precipitating- acute occurrences, medical illness
o Perpetuate- excessive time in bed
Non sleep behaviors in bed
Napping
Narcolepsy: disorder of periodic excessive sleepiness
Muscle paralysis
Sleep disruption
Hallucinations
REM dysfunction
Breathing-related sleep disorders
Loss of oxygen during sleep
Daytime fatigue
Brief periods of not breathing
REM Behavior Sleep Disorder
Normal paralysis occurring during REM sleep is disabled
Physically act out vivid dreams with vocal sounds and
movements
Associated with neurological conditions, Lewy body dementia and Parkinson’s
Sleep Walking
Repeated episodes of complex motor behavior during deep
sleep
Begins in slow-wave sleep
Reduced alertness, blank stare, unresponsive
Routine and lack of complexity- cases of opening things and
operating machinery
Novel: sleep texting, sleep shopping, sleep eating
Sleep Terror
Abrupt awakening from sleep accompanied by panic or
screaming
First 1/3 of sleep
Autonomic arousal
Dreams not recalled
NREM Dreams
Dull, mundane
Reviewing schoolwork, planning wardrobe
REM Dreams
Bizarre
Intense emotions
Illogical, uncritical acceptance of events
Dream theories
Unconscious Conflicts:
o Dreams consist of manifest content and latent content
o Hidden content represents unconscious conflicts
o Manifest content helps to protect you from unconscious thoughts o Lacks scientific support
Activation-Synthesis Hypothesis
o Random neural stimulation during dreams activates mechanisms that are typically involved in sensory input
o Mind makes sense of random visual activity by synthesizing it with stored memories
Threat-Rehearsal Strategies
o Dreams are adaptive in that they stimulate threatening events o Allows you to rehearse coping strategies
Information Processing and Physiological function
o IP: dreams function to organize the days cognitive material and consolidate memories
o PF: dreams provide periodic neural stimulation to develop and preserve neural pathways
6th Part to Study before Exam:
Sensation and Perception:
Reality is dependent upon two basic procedures:
o Sensation: gathering information, the passive process of bringing information from the outside world into the body and to the brain o Perception: interpreting information, the active process of selecting and organizing incoming information
Top-Down: perception
o Brains use of existing knowledge to interpret sensory stimuli Bottom-Up: sensation
o Processing of sensory information as it enters the sensory structures and travels to the brain
Psychophysics: psychological experience of physical stimuli- limits of human sensory system
Absolute Threshold:
Smallest amount of stimulus that can be detected
The point at which the level of intensity of a stimulus lists the stimulus over the threshold of conscious awareness
Hearing can detect 50% of all signals
Ex: mosquito ring tone, young people can perceive, older people cannot perceive
Difference Threshold:
“just noticeable difference”- minimum difference we can detect What is the smallest difference in brightness between two lights that we can see?
Weber’s Law:
Noticeable difference between 2 stimuli based on a constant proportion of the original stimulus rather than on a fixed amount of difference
Sensory Adaptation:
Disappearance of sensitivity to repetitive or unchanging stimuli Adaptive- its more important to detect new stimuli than constant danger
Perceptual organization:
Incoming sensory data must be organized into meaningful wholes Gestalt psychologists: developed principles to explain how the brain automatically organizes visual input into meaningful holistic objects
Gestalt principles:
Figure and ground principle
o Brain organizes sensory input into figure and ground (background) Law of proximity
o Visual elements are grouped together if they are close to eachother Law of good continuation
o Elements requiring the fewest changes or interruptions will be grouped together
Law of closure
o Tendency to complete incomplete figures to form meaningful objects Memory: capacity to acquire and retain skills and information
Structure that accounts for this capacity
Memory is selective and Reconstructive
o British psychologist Barlett
o Read stories about other cultures
o Eliminated/ changed unfamiliar details
o Added details to make story coherent
o Sometimes added a moral
Information Processor:
o Typing on keyboard- encoding
o Stored on disk- storage
o Recover information for use- retrieval
Modal Memory model:
Sensory memory, short term or working memory, long term memory Short term: 20-30 second
o Analogous to RAM
o Information transfers into long-term memory or is lost forever o Place to rehearse information so it can be transferred to long-term memory
o Place to bring information from long-term memory to work with it o Current thoughts
Memory span: average # of items you can remember across a series of memory span trials
o Usually 5-9 chunks of info at once
Chunking: meaningful unit of information (letters, numbers, etc) Long term:
o Capacity is essentially unlimited
o Differs in capacity and duration from working memory
o Both long and short term work independently
Distinguishing between Long term and Working memory:
Primacy effect: better memory people have for words presented at the beginning of a list
Regency effect: better memory people have for words presented at the end of a list
Long term memory systems:
Explicit memory- semantic and episodic
Semantic- factual knowledge
Episodic- personal life memories
Memory for factual knowledge and personal experiences
Requires conscious recall
‘declarative memory’
Implicit memory- procedural
Influences our behavior but does not require conscious
awareness
‘nondeclarative memory’
Prospective memory
Future oriented- you are remembering to do something in the future
Involves both automatic and controlled processes
Encoding specificity principle
Cues present during encoding serve as the best cues for
retrieval
Retrieval Cues
External cues- content dependent memory
o Ex: external environment, odors, music
Internal cues- state dependent memory
o Ex: internal cognitive processes, mood, psychological states Amnesia: condition in which there is significant impairment to long-term memories Resulting from disease, brain injury, or psychological trauma
Anterograde amnesia- the inability to form new long-term explicit memories for events after a traumatic injury or brain surgery
Retrograde Amnesia- inability to remember events prior to, especially just before, surgery or trauma