PSYC200 Lecture Notes - Lecture 3: Premenstrual Dysphoric Disorder, Synaptogenesis, Ejaculation

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1 Aug 2018
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Controlled by the pituitary gland (the master gland) Responsible for the secretion of human growth hormone. The thyroid gland also responsible for physical growth and the development of the nervous system. Testosterone the male hormone, responsible for growth and sexual maturation. Oestrogen (female hormone) development of female sexual characteristics. Progesterone (female hormone) equips females for pregnancy. Works to keep the body in balance. Consists of the brain; central & peripheral nervous systems. Neuron basic unit; a nerve cell. Myelination process of depositing a fatty sheath around neural axons that insulates them & speeds the transmission of neural impulses. Orthogenetic: growth starts globally/undifferentiated moves to hierarchical integration/differentiated. Within first few months, infants gains 30 grams & grows 2. 5 cm a month. Bones harden, are added, become more closely interconnected. At birth 25% & at 5 yrs 90% of adult weight. Synaptic pruning: the removal of unnecessary connections between neurons.

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