GRE (Graduate Record Examinations) Psychology Lifespan Development-Nature-Nurture Study Material (Page 3 of 4)

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Hereditary & Environment (Nature or Nurture Issue) : Primitive Reflex

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Primitive Reflex

These are automatic stereotypic movements directed from brainstem & require no cortical involvement (thought) .

  • Moro or Startle Reflex: When you fail to support or hold your baby՚s neck & head or if your baby becomes startled by a loud noise, bright light or sudden touch, the arms of your baby will thrust outward and then curl in as to embrace themselves.
  • Rooting Reflex: When you stroke your baby՚s cheek she will turn towards you, usually l…

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Genetics and Personality

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Genetics and Personality

Contradictory to the viewpoint proposed by the famous behaviourist John Watson who used nurture (environment) to explain our behavioural processes, researchers in the area of behavioural genetics claim that diverse facets of behaviour, including our consciousness, result from a complex interplay of nurture & nature.

The arena of behaviour genetics investigates human twins and adoptees to unearth environmental as well as genetic influences and allows us to estimate the heritability of various traits.

Genomes: An Introduction

  • In 1953, Wa…

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