Please enable JavaScript.
Coggle requires JavaScript to display documents.
The Neural Basis for Cognition (Neuroimaging # (Computerized axial…
The Neural Basis for Cognition
Capgras Syndrome
Recognize Loved ones but think they are imposters
Damage to amygdala, part of the brain responsible for emotional processing
#
Damage to prefrontal cortex, part of the brain responsible for weeding out illogical thoughts
#
Brain (Consists of)
Nerve cells (~1 trillion)
Glial cells (~10 trillion)
Parts of the brain
Midbrain
Coordination of precise movements
Sending auditory information from ears to forebrain
Hindbrain
Key life functions
Cerebellum
Bodily movements and balance
Forebrain
Thalamus
Sensory relay station to cortex
Hypothalamus
Motivated behaviors
Limbic System
Amygdala: emotional processing
Hippocampus: learning and memory
Cerebral Cortex
Departure & arrival of signals from the muscles and other parts of the body
Assist with thinking
Commissures
Connect hemispheres of the brain
Corpus Callosum is the largest
#
Lobes of the brain
Frontal
Parietal
Occipital
Temporal
Neurons
Communication within a neuron happens through electrical signals
Communication between neurons: chemical signals
Action Potential
Signal that moves down an axon to releases neurotransmitters at the next synapse
If the incoming signal reaches the postsynaptic neuron’s threshold, then the cell produces an action potential
Contralateral Lateralization
The left side of the body or perceptual world has more representation on the right side of the brain, and vice versa
Split-brain lateralization
Severed corpus callosum prevents communication between hemispheres of the brain
Neuroimaging
#
Computerized axial tomography (CT)
Shape, size, and position of brain structures
Positron emission tomography (PET)
Tracer substance that tracks glucose in the brain
Magnetic resonance imaging (MRI)
Uses the magnetic properties of the atoms that make up the brain tissue
Functional magnetic resonance imaging (fMRI)
Oxygen content of blood flowing through each region
Electroencephologram (EEG)
Recording of brain’s electrical activity
Millions of neurons create an electrical field