PSYC-275 Chapter 1-11: Psyc 275 Lecture
7 Oct 2016
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Red means known to be a test question on midterm or final. Scientific thinking requires both observation and inference: ie hypothesis- activity of amygdala leads to fear (how do we test for this?) experiment- stimulate the amygdala with electrodes inference- requires interpretation of behaviour since we can"t observe fear directly. Measurement of how long they freeze (quantifying fear- ie 2 seconds, 5?) Identify confounding variables: fear of you, not actually stimulation. External influence (ie your presence) vs. internal influences (ie anxious animal) Measurements can be objective (ie 4 s freeze) but req. subjective interpretation (is 4 seconds intense fear, moderate fear, etc. ) Critical thinking: ability to scientifically evaluate claims by analyzing evidence for weaknesses. Cerebral cortex: the outer surface (ie the lobes) are convoluted, but the inside is not. Convolution of the cerebrum (gray matter, non-myelinated cell body) increases surface. Gyrus: wrinkled ledges (sulci, or deeper referred to as a fissure)
