Psychology 1000 Lecture Notes - Lecture 18: Pineal Gland, Infor, Heart Rate

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Daily cycles: blood pressure, body temperature, chemical concentrations. Peak levels in late afternoon (best time for physical tasks: best time for mental tasks are usually in the morning. Suprachiasmatic nucleus: bundle of cells above the optic chiasm; in the hypothalamus, and next to the pituitary gland: it is the internal timing mechanism in your hypothalamus; it passes. Daylight stimulates the scn which inhibits productions of melatonin in the time signals. pineal gland: in the presence of daily, it inhibits melatonin. Photosensitive ganglion cells respond to blue light, and the chemical inside is called melanopsin, and blue light breaks down these chemicals, ergo it inhibits melatonin: darkness removes the inhibition, resulting in more melatonin we feel tired. (disinhibition). Buy it from a drugstore sometimes it works, and. Disturbances: sometimes it doesn"t: jury still out . Avoiding jet lag: hydrate on plane, avoid alcohol, get up and stretch, light meals, expose self to sunlight upon arrival.