PSYC 100 Chapter Notes - Chapter 3: Central Nervous System, Amyotrophic Lateral Sclerosis, Autonomic Nervous System
Document Summary
Traditional method: observing electrical activity of the brain through eeg recordings. > dalhousie"s john connolly used eeg on patient experiencing locked-in syndrome (alert patient in an unresponsive body) >> eeg is devised to stimulate certain stimuli: communication in the nervous system (pg 86) Behavior depends on rapid information processing; information travels instantaneously. Cells in the nervous system falls into 2 categories: http://www. youtube. com/watch?v=fr4s1bqdfg4 http://www. youtube. com/watch?v=jokp68kuqvc&feature=related. Individual cells (video shows that neurons aren"t connected to each other) Provides various type of support for neurons. Outnumber by 10:1; 50% of brain"s volume consisting glial cells. Orchestrate the development of the nervous system in the human embryo. May also send and receive chemical signals. May be implicated in diseases such as amyotrophic lateral sclerosis (als) and. Play a role in the experience of chronic pain, schizophrenia, mood disorders b a d c: soma [cell body] Contains cell nucleus and much of the chemical machinery common to most cells: dendritic trees (branch: dendrites)
