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Lecture

Psych Term 2 Lec 8.docx

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Department
Psychology
Course
Psychology 1000
Professor
Dr.Mike
Semester
Fall

Description
05/10/2012 Read 451 to 458 Hauser (1993) Emotions begin on left side Fit peak intensity greater expression on left Therefore on left side expression greater Note  Left frontal lobe more involved in positive emotions, right in negative More activity in left when watching happy films, more in right for sad/disgusting films Visibile for 10 month old infants Development  Change in abilities over time What influences development? Nature ▯ Motivatation Vs Nature ▯ Learning Obviously ▯ Interaction Nature determines the range Nurture chooses the alternative Stagelike development Discontinuous…stages separated by rapid growth Qualitative differences Continuous Development Smooth, continual change Quantitative difference Normative vs Individual Normative: Typical sequence of change Look for consistency Methodology is cross­sectional Take average of people Individual Consistency not there Look at individual Methodology is longitudinal Take same people and follow them over time Time consuming – 5 to 10 years etc…  Brain Development 100 – 200 B neurons at birth Neurons not produced after second trimester Increase in weight (350 – 1400 g) due to glial cells & myelination Brain Development Number of synapses increase rapidly Cortical development “mirrors” emergence of abilities Frontal lobe develops last Time lapse: 4 – 21 years Taste & Smell Very much like adult Suck faster for sweet liquid Reject salty liquid Pleasant expression for bananas Frown for rotten eggs Suggests… Hard wired? Hearing: at birth Responds to wide variety of sounds Prefer complex sounds Especially sensitive to sounds in range of human voice st 1  few days turn head toward sounds discriminate
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