Brain Scanning Flashcards
Roger Sperry
(1959-1968) Split brain experiment demonstrated that corpus callosum is required for full functioning of brain. And hemispheres of brain
Walter Freeman
(1936-1945) The lobotomy, during the mid-20th century. His work focused on the prefrontal cortex and its role in mental illness.
EEG
Electroencephalogram: Dynamic imaging
Electrodes placed on scalp and brain waves are detected in brain.
Help to diagnose epilepsy and other seizure disorders.
CT scan
Computed Tomography: Still imaging
Rotating x-ray beam moves around patient head while taking multiple x-ray images.
Fractures, tumours, aneurysms
MRI
Magnetic Resonance Imaging: Still imaging
Strong magnetic field and radio waves to produce pictures of the brain.
Diagnose brain tumours and aneurysms/strokes.
FMRI
Functional magnetic resonance imaging: Dynamic imaging
Strong magnetic waves to show where neurons are consuming oxygen.
Show the parts of the brain that are active when patient is performing a task.
Developmental plasticity
The ability of neural connections in the brain to reorganise in response to sensory input from the environment.
Adaptive plasticity
The ability of neural connections in the brain to reorganise in response to new information.
Stages of plasticity
- Proliferation
- Migration
- Circuit formation
- Synaptic pruning
- Myelination
