Psychology 1000 Study Guide - Quiz Guide: Memory Span, Sensation Seeking, White Matter

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Corey Isaacs

Document Summary

Process outgrowth: excessive growth of axons and dendrites, get formed, axons grow for long distances. Growth cones: swelling tip of an axon/ dendrite, with very fine extensions (filopodia) Synaptogenesis/ synapse production: establishment of synaptic connections as axons and dendrites grow, different in different brain areas. Synaptic pruning: loss of synapses, 20-80% of cells die during development. Apoptosis/ cell death: process in the emergence of tissue, crucial spinal cord most young nerve cells die. Death gene: genes that are expressed when a cell undergoes apoptosis. Neurotropic factors: act as if they would feet the neurons to help them survive. Nerve-growth factor (ngf): affects the growth of neurons, larger, more excessive processes. Adolescence brain development: risk perception, reward, self regulation. Cognitive development in adolescence (12 18 years) Ability to think abstractly, analyze situations logically, ability to think realistic about future and future goals, considering hypothetical situations, moral reasoning, bad in decision making. Brain changes that make adolescence vulnerable: re(cid:449)ard/ incenti(cid:448)e: (cid:862)affecti(cid:448)e path(cid:449)ay(cid:863)