Kinesiology 3371A/B Lecture 3: 3
21 Apr 2020
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Document Summary
Executive function (ef) higher order processes that integrate lower level cognitive functions to plan and execute goal- directed behaviour i. e. reasoning, problem solving, working memory, response inhibition, conflict resolution. The brain and executive function prefrontal cortex (pfc) responsible for ef decision making, planning, personality, conflict resolution/ response inhibition. Prefrontal cortex is the last part of the brain to develop: doesn"t fully develop until early/mid 20s. Reorganization or strengthening of synaptic connections in specific neural circuits as a result of our experiences. Study: mice in empty, non-stimulating environment have smaller brains and fewer synaptic connections than mice with more stimulating environments or mice in cages with other mice (more social interaction) New synapses: new skills and experiences create new neural connections. Strengthened synapses: repetition and practice strengthens synapses. Weakened synapses: connections in the brain that aren"t used become weak. Every time you learn a new fact or skill, you change your brain. Change can occur over the entire lifespan.
