PSYCH 230 Lecture Notes - Lecture 6: Fetal Alcohol Spectrum Disorder, Ocular Dominance, Microinjection
Document Summary
Genes in neurons are turned on and off by experiences, stimuli, and events all the time. Neurons: parts of a neuron (80- 100 billion) Inside a neuron: nucleus: manufacture proteins and neurotransmitters, microtubules: little finger-like structures that provide a skeleton for the axons to grow on and help with transport. Information? needs resting potential to be a in a ready state to process information. Resting potential: neuron is negative on the inside (usually -60 to 70, ranges from -50 to -80, positive charges on the outside by ions. Why do we want a resting potential: oubain, african arrow poison from wabayo tree, stops na+/ka+ pump, animal gets confused, loses control and can die, action potential: information. Injects information in to the neuron: electrical stimulation, measure blips using electrodes (stimulating and recording electrodes on the axon, resting potential of about -60, different neurons have different thresholds for action potentials at about -40 to -55)
