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Neuroscience: Research Contributions to Cognitive Science.(Part 1)…
Neuroscience: Research Contributions to Cognitive Science.(Part 1)
Brain Plasticity (Radical Suggestion & Solution) -Hemispherectomy
Removal of half of the brain
left side of the body(controlled right side of the brain)
Phantam Limbis
Sensation that missing limbs
5%-10% individuals with an amputation experience phantom sensation
In their amputated limb - majority painful
The neuroscience Approach (C.Neuroscience)
Brain mechanisms
Describe the biological 'hardware'
Mental 'software' supposedly runs
Neuroscientists
Structures & function of the brain human
Using language, solving problems & remembering
The biology of the mind
Human brain
Most complex organ
10 billion nerve cells & billions interconnecting fibers
Length: 15 cm
Weight: 1400 g (3 pounds/1.4 kg) & Newborn: 350 g - 400 g
Main Parts
Cerebrum, cerebellum, brain stem
Cerebrum
controls all conscious thought, experience & actions
divided( right & left hemispheres) and joined by the corpus callosum
outer folded layer (cerebral cortex)
cerebellum
second largest part of the brain
control posture & balance
Brain stem
controls process basic for survival - Heart rate, breathing, digestion, sleep
send & receive signal to the face, mouth, tongue, eye, muscles, ears
balance-sensing vestibular organs
Cerebral cortex
Four major areas
Frontal Lobe (language,thought,memory)
Pariental Lobe(touch system, perception of stimuli)
Ocipital Lobe (visual)
Nervous System
Peripheral (senses-brain)
central (brain+spinal cord)
Neurons
nerve cells
receive & transmit information
soma (body of the cell)(contains genetic material)
dendrite(received message(brings information to the cell body)
Axon((send message)(takes information away)
Synapse(a small gap separating 2 neurons) (a link from one neuron to another)
Neurotransmitters
Chemical signal that are released across the synapse so neutrons can communicate with each other
makes our brain works
Neurons connections
interacting neurons