Brain damage Flashcards
causes
- Blow to head
- Car accident
- alchohol
- drugs
- brain surgery Eg. Tumor removal
- Infection Eg. menigitis
- Diseas ( parkinsons, Alzheiners)
What is a brain injury
Refers to any brain damage that
- impares or interferes with the normal functioning of the brain
- sometimes it can recover , this is due to plasticity
Whta is Plasticity
- the ability of the brain to hnage in respnse to experience
- It changes by changing connections between neurons
- if neuron is damadged, then surrounding neurons fin new connections to form new pathways.
Different types of plasticity.
- Development
- Adaptive
- strucrural
- Functional
Development Plasticity
The natural changes that atke place in all peoples brain as we mature older and have new experiences.
Adaptive plasticity
Ability of brain to compehnsate for lost function in the evnt of brain injury
- explains how brain changes when we learn something new
Structural Plasticicty
experinces/ memories change brains physcial structure
Functional
Brain functions move from damadged area to undamadged area
procceses of Plasticity
- Synaptogenesis
- Rerouting
- Sprouting
Synaptogenesis
is the formation of synapses bewteen neurons in the nervous system
Rerouting
when an undamadged neuron that has lost connection with an active neuron may seek new active neuron to connect with
Sprouting
growth of axon and dentrite branches to enable the neuron to make new connections.
Aphasia
an IMPARMENT of language, affecting production or comphrension of speech
- and ability to read or write
- get commonly from stroke .
Two types: Brocas, wernickes
Broca’s aphasia
- damadge to broca’s area
- difficult for people to produce FLUENT speech
- speech is often a few key words
- They can understand other peopls speech
Know they have it
wernickes aphasia
- damadge to wernickes area
- issues comphrehending speech
- fluent speech that does not make sense( word salad)
- reading is difficult
Unaware of their ilness
