PSYC 1F90 Chapter Notes - Chapter 3: 18 Months, Ageism, Moro Reflex

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bluetortoise127

4 Apr 2012

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Developmental psychology: study of progressive changes in behaviour and abilities from conception to death. Heredity and environment shape and change us through out life. Heredity and environment are equally important, everything that happens is related to both. Heredity gives us potentials and limitations which are then affected by environmental influences, such as learning, nutrition and culture. Heredity: the transmission of physical and psychological characteristics from parents to offspring through genes. Lots of personal features are set at conception. Even when identical twins are raised apart they are still alike in motor skills, physical development, and appearance, although they are less alike as adults as they are when they are children. The nucleus of every human cell contains dna. Chromosomes: thread-like colored bodies" in the nucleus of each cell that are made up of dna: 46 in human dna. Ova and sperm cells only contain 23 chromosomes. Genes: specific areas on a strand of dna that carry hereditary information.

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43. Consider the following scenario: A group of psychologists are studying the genetic influence on intelligence. They find that identical twins (raised together) have a heritability coefficient of .88 and that fraternal twins (raised together) have a heritability coefficient of 42. Based solely on these findings, the psychologists can legitimately conclude that A) intelligence is entirely shaped by genetics B) intelligence is entirely shaped by the environment C) intelligence is impacted be genetics D) intelligence is not impacted by the environment E) intelligence is not at all impacted by genetics

43. Consider the following scenario: A group of psychologists are studying the genetic influence on intelligence. They find that identical twins (raised together) have a heritability coefficient of .88 and that fraternal twins (raised together) have a heritability coefficient of .42. Based solely on these findings, the psychologists can legitimately conclude that A) intelligence is entirely shaped by genetics B) intelligence is entirely shaped by the environment C) intelligence is impacted be genetics D) intelligence is not impacted by the environment E) intelligence is not at all impacted by genetics

41. The fact that researchers have found that rat pups that were raised in a stimulating early environment have larger neurons and more dendrite branches supports A) the idea that brain development is primarily genetically determined B) the idea that the environment has an important impact on brain development C) the idea of neural plasticity D) all of the above E) Only B) and C) above

PSYC 1F90 Chapter Notes - Chapter 3: 18 Months, Ageism, Moro Reflex

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