PSY 001 Chapter Notes - Chapter 1: Psy, Psych
21 Sep 2020
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Rats living in an enriched environment (social interaction & physical play) experienced a greater growth in brain size and complexity than those rats living in an impoverished environment. Most synapses are due to our experiences. To make our well-used brain pathways work better, the unused connections are pruned way. Means that if certain abilities are not used, they will fade: brain over produces synapses just to be safe, then fades unnecessary synapses. Simulation vital when brain is growing rapidly. Experience-expectant growth: ordinary experiences are expected by brain to grow normally, ex. Impact of experience/nurture on brain development fmri lit up when finger tapped. Practice, ore experience, then brain region that was active expanded. Ex of experience dependent growth in adulthood. Is parenting powerful environmental influence on development? (primary caregiver) Generally, environmental influences, including parenting, account for about 10% of temperament, although a much higher % for other factors like values.
