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UNIT 3 NEUROSCIENCE (Modern Technique & Research (Functional Brain…

- - - - Electroencenphalograms (EEG)
        
        Tracing the pattern of electrical activity (feeling)
        
        Record
        
        Advantages
        
        Able to trace rapid changes
        
        Can record activation in brain
        
        Disadvantages
        
        Possible interferences from movements
      - Event related Potential (ERP)
        
        Presented with a stimulus during EEG
        
        Evaluated response provides a picture
    - - Positron Emission Tomography (PET scan)
      - Method of measuring cerebral blood-flow
  - - - New method of neuroimaging
      - Use magnetic to take image
        
        Disadvantages
        
        Slow
        
        Cannot be used in metalic devices
        
        Advantages
        
        Sharper image than CAT
        
        Noradioactive material
        
        flexibility
    - - Cerebral Angiography
        
        useful in detecting disoders associated in abnormalities
      - computed Tomography
        
        Weakness
        
        Appear blurring because of 2-D rendition of our 3-D body
        
        focus on one plane
      - Computed Axial Tomography (CAT)
        
        Less radiation
        
        Strenght
        
        Safer
        
        more precise
        
        Clearer image
        
        Weakness
        
        Doesn't indicate when an activity is occuring
  - - - X-ray
      - Magnetic Resonance Imaging (MRI)
    - - Electrophysiological Technique
      - Blood-Flow Technique
- - - - Contains genetic material
  - - - Brings information to the cell body
- - - - It controls posture and balance
      - A role in higher cognitive processes
    - - Largest part of the brain controls all conscious thoughts, experience, action
    - - Main route of communication between
        
        Spinal cord
        
        The nerves that run throughout the body
        
        The rest of the brain
      - control process basic for structural
        
        Herat rate
        
        Digestion
        
        Breathing
        
        Sleep
  - - - Receives info from senses
        
        Temperature
        
        Texture
        
        Pain
        
        Pressure
    - - primary function vision (visual process)
    - - Motor function
        
        Language, impulse control
        
        emotion
        
        memory, initiation
        
        Problem solving,spontanesty
    - - Hearing (auditory process)
- - - - Emergence of theory of localisation
        
        Broca's Area
        
        Wernicke's Area
  - - - 2 Principles
        
        Principle of Equipotentiality
        
        Principle of Mass action
- - - - Investigated the role of two hemispheres
- - - - Aphasia (ASL)
      - Brain Plasticity
      - Localization of Brain
      - Processing of content & Function Words
    - - Autism
      - Dyslexia
      - Schizophenia
      - Bipolar & Unipolar Disorder
    - - Categorization Task
      - Name Finding
    - - Roles of Hippocampus
      - Implicit & Explicit Memory
      - Functions of Working Memory
      - Long Term Memory