PSY398H5 Lecture Notes - Lecture 2: Interop, Leydig Cell, Breastfeeding
Document Summary
Hormones and sexual differentiation major components of motivational systems. Intracrine communication: within cell communication, thru chemical systems. Autocrine communication: when neurotransmitters are released, there are receptors on the presynaptic neuron that read this signal, and stop transmission when needed. Endocrine communication: not in adjacent cell, hormonal communication, E. g. estrogen - released into blood, affects at estrogen receptors, e. g. in breasts, in brain (hippocampus, estrogen enhances memory, women remember better during ovulation when estrogen levels are highest) Ectocrine communication: bio response of release of chemicals, but the response is on another animal, eg pheromone release. If you are a hormone, you can still be a neurotransmitter. Control centre of hormone, is hypothalamus and pituitary gland, as well as pineal gland. Adrenal gland - has 2 different systems it regulates. Change probability or intensity of behaviours - focus of course. 30mins after u wake - cortisol levels are highest. Protein hormones: same structurally, as peptides, but longer chain.
