Final Exam Flashcards
What is psychology? How has the definition changed over time?
“science of mental life” was the first definition “science of observable behavior” was the second definition “the science of mental processes and behavior” is the current definition
Who is the father of psychology in the U.S.?
William James
Describe the scientific method
Observe – theorize – hypothesize – accept or refine theory
What is a theory?
fact-based framework for describing a phenomenon
What is a Hypothesis
a tentative statement about the relationship between two or more variables
What is a correlation?
Systematically measuring (Describing) the relationship between two variables
What is the primary weakness of the correlational method?
Correlation does not equal causation and Spurious relationships
control group
does not receive the “treatment” or alternative version of independent variable
experimental group
manipulation of one or more variables to observe the effect on behavior or mental processes using random assignment to control for relevant factors
Independant Variable
is the characteristic of a psychology experiment that is manipulated or changed.
Dependent Variable
the measured variable (e.g., level of aggression)
What is random assignment and why is it important?
Key to an experiment; each participant has an equal change of being assigned to the experimental and control conditions
EEG
Electroencephalogram (EEG) records electrical activity on brain’s surface Advantages? Fast, in real time, cheap Disadvantages? Can’t look at structure of the brain
MRI
MRI (Magnetic resonance imaging) and fMRI (functional MRI) MRI - Structure fMRI – Determines activity and function during information processing tasks
Three types of neurons
Sensory, motor, and interneurons
Sensory neurons
Carries sensory input to the brain
Motor neurons
Carries message from brain to muscles
Interneurons
Internal communication system (Middle men)
What is a neurotransmitter?
chemical messengers that crosses synaptic gap or synapse (tiny space between neurons; not always believed to exist)
What are the four areas of the cerebral cortex
Frontal Lobe, parietal lobe, occipital lobe, and temporal lobe
Frontal Lobe
responsible for decision making, personality, speaking, and planning
Parietal lobe
processes touch sensation, has sensory cortex, spatial awareness
Occipital lobe
processes visual input, visual sensations
Temporal lobe
deals with auditory sensations and language