PSYC 2390 Chapter 2: Chapter 2 Notes

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Early hypothesis y ventricles- cavities in the center of the brain y pineal gland- thought to be over the ventricles y disorders of the brain were disorders of chemistry. Recoding from neurons y record electrical signals from single sensory neurons: valuable information of what is happening in the nervous system, different neurons may react differently to particular stimulus/situation. Neurons: cells that create and transmit electrical signals y purpose to respond to stimuli from the environment and transduce these stimuli into electrical signals y to communicate with other neurons so signals can travel long distance. microelectrodes- small shafts of glass or metal with very fine tips are used to record signals from single neurons. always measuring the difference in charge between two electrodes. recording electrode (located where electrical signal will occur) reference electrode (located some distance away so it"s not affected by electrical signals)