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Lecture 4

GRT 2100 Lecture Notes - Lecture 4: Prefrontal Cortex, Aging Brain, Frontal Lobe

Course Code
GRT 2100
Sonia Gulati

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Tuesday, May 13th, 2014
Lecture 4: Aging and Maturational Changes: The Aging Brain, Normal Aging, Role
Changes and Sexuality
Signs of aging (Normal and Primary):
Skin gets thinner as you age, more elastic
Changes in digestive enzymes
Fatigue/ sleep issues
Hair turns grey
Hearing declines, a.k.a presbycusis (age related hearing loss)
Impaired/ Secondary Aging:
Developing cancer
Optimal/ Successful Aging (slowing it down):
Special diets
Some anti-aging medicine
Positive Aspects of Aging:
Mental structures in which you interpret the world expand to organize aspects of the
world more clearly; better to assimilate and accommodate
The Aging or “Changing” Brain in Healthy Aging
Parts of the brain shrink, easier to damage, much like a baby’s
Changes in blood flow, arteries become smaller. changes regardless of strokes of
other conditions
Frontal lobe: movement, mobility functions, if stroke there is damage to this area,
complex mental activities, sensory
Temporal: hearing
Cerebellum balance, skilled motor activity
Prefrontal cortex: ability to learn or plan things may be affected
-- brains ability to change structurally/ functional can occur in 2 ways, learning /
experience and damage to the brain
Psychosocial factors that affect sleep:
Stress; greater worries/ levels of stress
Reduced activity during the day
The Brain:
If you have a stroke on the left side of your brain, it affects right side of the body
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