Psychology 1000 Lecture Notes - Lecture 13: Heritability, Leonard Berkowitz, Ion Exchange

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

People who are already ready to be aggressive and are exposed to weapons will be more aggressive. Movie violence: black and bevan (1992, aggression scale to movie-goers before or after violent or nonviolent movie, correlational field study therefore you cant make cause. Explanations of behaviour: three levels of analysis. Areas of psychology: freud, wundt (founder of psych) skinner, piaget, pavlov, thorndike, Designing an experiment: independent vs dependent variables. Statistics: mean, median, mode, range, smaller the variance, the scores are more clustered around the mean, z scores. Pitfalls in research: demand characteristics, experimenter bias - cure is a double blind, internal vs external validity, internal (double blind, external (replicate) Structure of neurons: dendrites and axons, ionic exchange. Action potential: influx of sodium, outflow of potassium, spreads down the axon. Synaptic transmission: dump chemicals (neurotransmitters) into the synaptic gap, get to postsynaptic membrane (dendrite, this will either generate ipsp (potassium hyperpolarize) and epsp (sodium channel - depolarization, graded potential.