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psychology exam matt
Question | Answer |
---|---|
Basic Research | To explore and advance general scientific understanding |
Applied Research | Reasearch specifically conducted to solve practical problems & improve the quality of life |
Counseling Psychologist | to help "normal" people with adjustment problems |
Operational Definition | specifying precisely how variables will obe observed abd measured |
Developmental Psychologist | Study individuals from birth to death |
Naturalistic Study | Observing behavior in natural setting |
Case Study | In-depth study used on individual or small group of people in uncommon or rare situations. |
Correlational Study | Studies the degree of relationship between two or more characteristics, events or behavior. |
Survey Method | Interviews/questionairs to discover data about attitudes, beliefs, opinions, experiences groups of people. "representative Sample" |
Independent Variable | Variable in the experiment that is directly manipulated |
Dependent Variable | Manipulated in result to variations of the independent variable |
Control Group | not exposed to independent variable or treatment. |
Experimental Group | Group exposed to independent variable or treatment. |
Replication | Repeating an investigation with different participants and investigators to verify results. |
Confounding Variable | factors other than the independent variables which are under across groups. |
Socio-cultural Perspective | Social and cultural influences. |
Double-blind Technique | Participants nor experimentors know who is experimental or control group |
Deception/Debriefing | Tricking participants in order to experiment |
SQ3r | Survey question read recite review |
Cognitive Perspective | Examines internal mental processes (How a person thinks) |
Substantia Nigra | Controls mid-brain unconcious actions. Ex: WALKING UP STAIRS |
Glial Cells | Hold neurons together in brian and spinal cord, eats waste/dead cells, manufactures and nourishes cells |
Neural communication | Physically interconnecting neurons transmitting signals throughout the body. |
Serotonin | Neurotransmitter.Mood, sleep, impulsativity, agression, and appetite. |
Hypopathalamus | Forebrain: hunger,thirst, body temperature, emotions, endocrine system. |
Thalamas | Forebrain: Relay situation betweencerebral cortex and lower brain centers. |
Amygdala | Limbic system: plays impotant role in emotion in response to unpleasant punishing stimuli. |
Corpus Callosum | Band of nerve fibers, connect connect the two sides of the brain. Allows for transfer of information and coordination between hemispheres. |
Split-brain Studies | Corpus callossum intentionallysevered to control epilepsy results in impossible communication, decreased frequency of seizures. |
The 4 lobes | Frontal: words, production of speech (brains area)Thinking emotional responses. Largest lobe. Practical: Touch, pressure, temperatures pain, controls how we use hands. Occipital: vision Temporal: Hearing. (werniche's area) |
Functions of the cerebral cortex | Language, memory, thinking |
Hippocampus | Limbic system: helps usform long-term memory. "neural maps" unexpected stimuli. |
Sympathetic nervous system | Puts body in state of emergency |
Parasympathetic nervous system | Mobilizes body back down after stress/emergency. |
Pituitary gland | Rest below Hypothalumus. "master gland" |
Thyroid gland | Below Larynx. Produces thyroxine, regulates food metabolism. |
Lateralization of the brain | Specialization of the brain w/ skills being concentrated on either hemisphere. |
All-or-none law | a nerve impulse from a weak stimulus is the same as a strong stimulus. |
Spinal cord | transmit messages between brain and prefferal nervous system |
Binocular disparity | Difference in images between the left and right eye. |
Chapter 3 Sensation | Sense stimulus transmitted to the central nervous system. SENSES |
Perception | Making sense of the sensations. Organized and interpreted by the brain. |
Absolute Threshold | Minimum amount of sensory stimulation. (minimum amount of sugar in cofee to taste it) |
Difference threshold | Minimum increase/decrease (already can taste sugar, how much it takes to change) |
Weber's law | Change must be in proportion to original stimulus. Ex: Bigger = Take more. Smaller = Take Less |
Transduction | Sensory info turned into nerual impulse Ex: Hearing something, hearing stiumlation to ears. |
Sensory adaptation | Ex:ciggarette smokers getting used to smell of smoke |
Rods and Cones | Rods = Allow eye to respond to light. (black and white) Cones: Allow to see color and detail, but not in bright light. |
Perceptual grouping | How the brain percieves grouped objects (similarity,closure,continuity,proximity) |
Perceptual constancy | How the brain percieves and recognizes the constancy of objects (size,shape,color,brightness) |
Percepton of motion | How the brain processes motion. (monocular/binocular depth cues) |
Linear perspective | Parallel lines are the same length until further down in distance. |
Binocular depth cues | Cues depending on eyes working together. Ex: Pen to eyes |
Interposition | One object blocking another.. the object blocked is further |
Perceptual set | expectation of what will be percieved, which can affect what is percieved Ex: Green raspberry shermert tasting limey |
Illusions | False perception of actual stimulus Ex: Oar in water |
Top-down processing | Previous knowledge/experience applied to perception for easier recognition. ex: dp 643 but saying its about baseball will influence thought process. |
Bottom-up processing | c_ _ ck l o USING BITS TO DISCOVER WHOLE h e r i |
Accomodation | flattening/bulging of discs due to focus on images. |