PSYC 101 Lecture Notes - Lecture 10: Transcranial Direct-Current Stimulation, Transcranial Magnetic Stimulation, Neural Oscillation
27 Sep 2018
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If able to read out the signals of the brain, could they change it? (influence brain activity) Lower accuracy to localize and reach for moving objects. Lower accuracy to localize and reach for stationary objects when backgrounds moving backgrounds moving. Us food and drug administration (fda) approved for treating. From dendrites to cell body and then throughout the axon. Cytoplasm and extracellular fluid consist of + and - charged ions. Diff concentration of + and - charged ions inside vs outside. Membrane potential = diff between electrical charge inside and outside of a neurons cell membrane. Inside vs outside: lots of k+ and protein ions (a-) Outside vs inside: lots of na+ and cl- K+ and na+ channels are closed, ions cannot pass thru membrane. Inside - charged compared to outside: -70 millivolts (mv) Try to equally distr themselves on both sides. Stimulating neuron (reaching threshold to fire action potential. Na+ channels open; influx of na+ channels charge inside positive.
