psychology unit 2 the brain chapter 3 nervous system the brain heredity
TRANSCRIPT
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Psychology Unit 2 The Brain
Chapter 3
Nervous System
The Brain
Heredity
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The Nervous System
• Nerve cells communicate and send messages throughout body• 100 BILLION
• Neurotransmitters – chemicals• Acetylcholine – Muscle contractions/control• Endorphins – pain control and pleasure• Dopamine – motor controls and reward pleasure
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Central Nervous System
• Spinal cord and the brain
• Peripheral Nervous System transmits messages btwn CNS and body• Sympathetic System prepares the body for action
• Flight or Fight response• Parasympathetic System restores the body AFTER action
• Rest and Digest
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The Brain
• Hind Brain – Heart Rate, Respiration and breathing• Medulla• Pons• Cerebellum
• Mid Brain – Vision and hearing• Reticular Activating System
• Fore Brain – Thought and emotion• Thalamus• Hypothalamus• Lymbic System• Cerebrum
Phineas Gage
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Language and the Brain
• MOST people have language function in the LEFT hemisphere• Brocas Area – controls area of the face responsible for speech• Wernicke’s Area – Understanding speech and forming speech
• Aphasia – damage to Broca’s or Wernicke’s; impairs language skills
• Genie? Others?
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Left vs Right Brain DEBUNKED??? You decide…
Left Brain/RIGHT HANDED??
Adept at tasks that involve logic, language and analytical thinking. The “left-brain” person is often described as being better at:
• Language
• Logic
• Critical thinking
• Numbers
• Reasoning
Right Brain/LEFT HANDED??
Best at expressive and creative tasks. The “right-brain” person is often described as being better at:
• Recognizing faces• Expressing emotions
• Music• Reading emotions
• Color• Images• Intuition• Creativity
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Heredity - Nature vs Nurture
Nature• Biology determines a
person’s development and personality
Nurture• Environment
determines a person’s development and personality
Heredity is the transmission of characteristics from parents to offspring.
Kinship Studies: common way to study the debate• Twin Studies• Twins Reared Apart• Adoptee Studies
• YOU and your family?! (shudder) Similarities and (hopefully) differences?
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Nature vs Nurture Research Assignment
• Find at least TWO studies focused on the debate
• Twin Studies
• Twins Reared Apart
• Adoptee Studies
• Other study based on Nature vs Nurture
• FIVE PARAGRAPHS
• A written summary of each study’s findings, and a reflection of the NvN debate including your research findings and an introspective look at your own personality as it relates to NvN
• Use information presented in class during Unit 2 in addition to your research!!!