PSYC 2700 Lecture Notes - Lecture 2: Motor Cortex, Parietal Lobe, Transcranial Magnetic Stimulation
Document Summary
Neurocognition: cognition happens as a result of different brain states, used patients to make speculations about the structure of the cognitive system. Structure of the neuron: dendrite: receives information, the cell body (soma) gets activated with new information, terminal buttons: send out information, axon: in some cases is covered with a myelin sheath (longer ones are more likely). If they are covered they are white, if they are not covered they are grey: energy is able to pass on to other neurons that are connected by dendrites, neural communication. When a neuron is activated, there is a change in the electrical charge of the neuron from negative to positive. This charge will go all the way to the axon and the dendrites: all neurons have resting levels of -70 mv. When you activate the neuron, there is a pattern: the stimulus will build up activation, and at some point it will reach a threshold, an then it will fire.
