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PSYC18H3 (334)

Lecture 04

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Michelle Hilscher

Lecture 04 Recall 1. Natural selection happens when: Within-species competition comes from the fact there are many individual & limited resources Within-species differences Phenotype tied to genotype difference in phenotype should be in genotype for to transfer from generation to generation - e.g. Beak size difference Environment favors some heritable variations over others e.g. Moth that K,;057010703.0147OLJK9;8249K/40839K,;057010703.0147OLJK9 in city moth that likes light would get burned off --9K:8249K9K,9/40839OLN0OLJK9 increase in the city population 2. Darwin Emotional expressions are adaptations. - they are actions that helped our ancestors survive increase the our chance of survival - These actions coincided with emotions our ancestors felt. - e.g., crying when unhappy in our ancestor tears help to clear our eyes of dust, smokes but w/ this action coincided w/ emotions - fear or sadness - So now tears/ crying help communicate your emotional state to others or w/ infants to signal fear to parents 3. Evolution and culture - Animal at base have their basic instinct to survive & reproduce - Primitive urges shape culture - one of to increase survival is through formation of groups for protection & reproduction need actions to maintain social bonds w/ in groups - Chimps maintain social bonds via grooming BUT humans have large group impossible to do this comes language which is versatile - Culture controls primitive urges - e.g. legal system - help to keep order in group & protect groups as whole from individualistic urges that are ultimately greedy - :O9:70.K,3J08-:984209L2084:7-4/L08,3/2L3/8.,39N005:59K070,70 limits to evolutionary adaptation. - E.g. Junk Food/ Sweeth tooth this was good diet for our ancestor but now 1474:780/L2039,7\OL1089\O0/439300/9KL82:.K.,O47L08 but since our -L4O4J\/L/39caugth w/ us leads to Obesity - E.g. being lonely in a crowd emergent of Emotional Disorders We do not know how to cope with the rapid pace of industrialization, urbanization, and immigration. - These are sources of new emotional problems emotional disorders these challenges is not what our ancestors would have faced - Crowding & social isolation - The 5,7,/4[BeingAlone in a Coward not being w/ family & friends having to interact w/ large group of people puts social & emotional pressure though we learn to cope socially by learning L9 $%J0997,38O,90/ GENETICALLY 843,9:7,O80O0.9L43.,39Z47N439KL8
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