Chapter 3 Nervous System The Brain Heredity The Nervous System Nerve cells communicate and send messages throughout body 100 BILLION Neurotransmitters chemicals Acetylcholine Muscle contractionscontrol ID: 742736
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Psychology Unit 2 The Brain
Chapter 3Nervous SystemThe BrainHereditySlide2
The Nervous System
Nerve cells communicate and send messages throughout body100 BILLIONNeurotransmitters – chemicalsAcetylcholine – Muscle contractions/controlEndorphins – pain control and pleasure
Dopamine – motor controls and reward pleasureSlide3
Central Nervous System
Spinal cord and the brainPeripheral Nervous System transmits messages btwn CNS and bodySympathetic System prepares the body for actionFlight or Fight response
Parasympathetic System restores the body AFTER actionRest and DigestSlide4
The Brain
Hind Brain – Heart Rate, Respiration and breathingMedullaPonsCerebellum
Mid Brain – Vision and hearingReticular Activating SystemFore Brain – Thought and emotionThalamus
Hypothalamus
Lymbic
System
Cerebrum
Phineas GageSlide5
Language and the Brain
MOST people have language function in the LEFT hemisphereBrocas Area – controls area of the face responsible for speechWernicke’s Area – Understanding speech and forming speech
Aphasia – damage to Broca’s or Wernicke’s; impairs language skillsGenie? Others?Slide6
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??
B
est
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
CreativitySlide7
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?Slide8
Nature vs Nurture Research Assignment
Find at least TWO studies focused on the debateTwin StudiesTwins Reared ApartAdoptee StudiesOther study based on Nature vs Nurture
FIVE PARAGRAPHSA 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!!!