Week 13 Flashcards
Neuroplasticity
Ability of neurons to show modification: change function, chemical profile or structure
Cortical Reorganization
Somatotopic map change after a change in physical ability to use typically required body part
ex: amputation, stroke
Preinjury Neuroprotective Factors
- Exercise
- Environmental Enrichment
- Dietary Restriction
Post-injury Factors
- Pharmacological treatments may promote recovery of function
- Training specific activities are better than generalized activities
Diaschisis (Brain Injury)
The loss of function in a structurally intact brain area because of loss of input from an anatomically connected injured area of the brain
(Decreased blood flow/metabolism, usually transient)
Cytotoxic Edema
Accumulation of intracellular fluid
Vasogenic Edema
Leakage of proteins and fluid from damaged blood vessels
Axotomy
Injury that divides axon into two parts
Principle of Experience-Dependent Plasticity: Use it or lose it
Failure to drive specific brain functions can lead to functional degradation
Principle of Experience-Dependent Plasticity: Use it and improve it
Training that drives a specific brain function can lead to an enhancement of that function
Principle of Experience-Dependent Plasticity: Specificity
The nature of the training experience dictates the nature of the plasticity
Principle of Experience-Dependent Plasticity: Repetition Matters
Induction of plasticity requires sufficient repetition
Principle of Experience-Dependent Plasticity: Intensity Matters
Different forms of plasticity occur at different times during training
Principle of Experience-Dependent Plasticity: Salience Matters
The training experience must be sufficiently salient to induce plasticity
Principle of Experience-Dependent Plasticity: Age Matters
Training-induced plasticity occurs more readily in younger brains
