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Chapter 1

PSY100- Study Notes - Chap 1,2,3.docx

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Department
Psychology
Course
PSY100H1
Professor
Dax Urbszat
Semester
Fall

Description
Psychology Test 1 Study Notes UNIT 1 Lecture: Psychology: - Psyche – soul - Logos- to study - Wilhelm Wundt came up with the term psychology. He combined the disciplines of physiology and philosophy to form psychology. Professional Practices of Psychology: - Experimental/Academic - Clinical- Treating patients with various psychological disorders - Counseling- Treating issues such as family matters but without the use of prescribed drugs. - Education- Professors teaching psychology - Industrial Organization- consults with businesses who they should or should not hire. - Sports - Forensics Text: Wilhelm Wundt: - Made psy a separate discipline from philosophy and physiology. - Believed the primary focus of psychology should be the study of consciousness. - Created the first university program in the name of psychology. G. Stanley Hall: - Launched US‟ first psy journal - Drving force behind APA - Established America‟s first research lab in psy. Structuralism: - Founder: Edward Titchener - Examine the structure of consciousness, the relationship between the basic elements of consciousness - Wanted to examine sensation, feelings and images. - Depended on introspection, systematic observation of ones consciousness, to examine these elements. Functionalism: - Examine the purpose of consciousness. - Founder- William James (or to say so) - Inspired by Darwin‟s natural selection, figures that one‟s consciousness must serve a purpose - Consciousness- “continues flow of thoughts” - Examined and looked at human behaviour, etc. Behaviorism: - Studies observable behavior - Founder: John B. Watson (Said psy should not be about consciousness) - Mental processes = private events, cannot be studied using a scientific method - Behavior = observable response of an activity by an organism - Nature Vs. Nurture- Said nurture, downplayed heredity - Investigated stimulus (input)- response relationship - Increased animal research Gestalt Theorists: - Opposed Watson‟s idea of behaviorism, and waned to continue with the study of consciousness. Sigmund Freud: - Founder of psychoanalysis - Behavior is influenced by unconsciousness - Psychological problems rise from personal conflict at the unconscious level - Psychoanalytic theory tried to explain mental disorders, personality and motivation by focusing on unconsciousness. B.F. Skinner: - Supported behaviorism - Did not like stimuli-response concept - Believed environment moulds behavior - Believed and showed that animals keep repeating responses with positive outcomes - Free will is an illusion, people are controlled by their environment Humanism: - Unique qualities of humans- their freedoms + personal growth Applied Psy: - Concerned with everyday problems Clinical Psy: - Concerned with diagnosis and treatment of psychological disorders. Cognition: - Mental processes involved in obtaining knowledge, human behavior can‟t be understood fully without knowing how humans think Ethnocentrism: - Superiority of one‟s own group over others and the standards of judging foreign ways Evolutionary Psy: - Evolution of humans/animal behavior Biological: - People think depending on the chemicals inside their body UNIT 2 Lecture: Research Methods Psychological Research: - Naturalistic Observations: Just observe the subject in their natural environment. No controls over or manipulations to the subjects. - Surveys: Prone to great error. Can be biased. - Case Study: Studying an individual case or incidence, examination of only one subject. Many times sample size is not big enough. - Correlation: Looks at two variables and their effects on each other. Measures the strength and direction of associations between two variables. Suffers from problems of directionality and third confound variables, preventing researchers from making any causal inferences. - Experimental: Is a controlled study. Uses random assignment to control for all variables except for the independent variable, which is manipulated by the researcher. Random assignment allows for casual inferences to be made between independent and dependent variables. Class Experiment - Independent Variable: Two groups/ conditions. A group made felt anxious and the one that was not. - Dependent Variable: Number of words generated in the boggle task. - Manipulation Check: The surveys/ questionnaires, people with „x‟ on their sheet would have a higher score of anxiety. Bias in Research: - Sampling bias: When a sample is not representative of the population from which it is drawn. - Placebo effects: When a participant‟s expectations leads them to experience some change even though they are given ineffectual treatment. - Social desirability bias: Tendency to give socially approved answers about oneself. - Response set: A tendency to respond to a question in a particular way, which is unrelated to the content of the question. - Experimenter bias: When a researcher‟s expectations or preferences about the outcome of a study influence the results obtained. Double blind procedure is a strategy in which neither subjects nor experimenters know which subjects are in the experimental or controlled groups. UNIT 3 Lecture: Components of a Neuron: - Dendrites: Receives information from other neurons - Cell body: Creates transmitter molecules: - Axon: Myelin sheath insulates the nerve cell and speeds up the conduction of nerve messages Terminal buttons of the axon release neurotransmitters Graded Potentials: - Simulation of the nerve membrane opens up ion channels in the membrane - Na ions flow in, depolarizing the membrane (-70 mV to say –60 mV) + - K ions flow out of the membrane, hyperpolarizing it (-70 mV to –90 mV) - Created at the dendrites and conducted along the membrane to axon hillock Action Potential: - If the simulation raises the membrane potential past a threshold level, action potentials (AP) occur. - Na flow in, depolarize the membrane up to +40 mV + - Restoration of the membrane occurs by opening up the K channels and restoring the membrane potential to –70 mV. - Conducted along the axon, toward the terminals Synaptic Functioning: - Neurotransmitters stored in vesicles of the presynaptic cell and released in response to an AP. - Once released, neurotransmitters diffuse across the synaptic cleft and bind with the receptors on the postsynaptic cell. - Neuromodulators: Indirectly alter the activity of other transmitter substances The Nervous System: http://www.biologycorner.com/bio3/images/flowchart-nervous.gif Autonomic Nervous System: - Sympathetic- emergency (fight or flight response) - Parasympathetic- Vegetative Functions (ex. Digestion) - The two systems often act in opposition (maintaining the heart rate) - Can also act in concert (sexual reflexes) Parts of the Brain: - Medulla: Controls heart rate, respiration - Cerebellum: Coordinates smooth movement, balance, posture - Pons: Involved in the control of sleep - Cerebral Cortex: Thinking Station, very big in humans, involved in imagination (allows us to think about ourselves in a spiritual way, life after death) - Thalamus: Relay station - Hypothalamus: Responsible for four Fs: Feeding, feeling, fighting, mating - Pituitary Gland: Puppet master gland - Corpus Callosum: Connects two parts of the brain, filled with axons  How do humans differ from animals: humans have a big cerebral cortex, and show respect for and bury our dead. Limbic System Functions: (Emotion) - Septal area is involved in pleasure and in relief from pain - Amygdala is involved in learning and recognition of fear - Hippocampus is involved in memory (creates a story out of the information). Information
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