Chp 1: Neuropsychology Introduction Flashcards
What is neuropsychology?
Understanding the relationships between brain, behaviours and cognitions
Neuropsychology Case Studies
Phineas Gage
- A relationship between personality, executive function and the prefrontal cortex is observed
Patient Tan
Dr. Paul Broca
- A relationship between speech and the inferior frontal gyrus is observed
Patient HM
- A relationship between long term memory formation and the hippocampus and medial temporal lobes is observed
Localization
the idea that certain functions have certain locations or areas within the brain.
- Personality – prefrontal cortex
- Speech – inferior frontal gyrus (Broca’s area)
- Memory – hippocampus
Lateralization
localization of function or activity on one side of the body in preference to the other
- Speech – LEFT inferior frontal gyrus
Modern imaging technology has… (4)
Refined understanding of brain function
* Towards incorporation of a distributed systems perspective
* A cognitive function might not carried out by a very discrete brain region – multiple regions may participate in any one function
* Each brain region may participate in multiple cognitive functions
Neuropsychological assessment
- Tests provide a more complete picture of a patient’s potential impairments
- Sometimes brain injury isn’t apparent in imaging and testing is necessary to elucidate impairments
The difference between traumatic brain injury and
non-traumatic brain injury
- Traumatic impact injuries can be defined as closed (or non-penetrating) or open (penetrating)
- Non-traumatic brain injury (acquired brain injury)
causes damage to the brain by internal factors, such as a lack of oxygen, exposure to toxins, pressure from a tumor, etc.
That often the disability that follows brain injury is
Invisible
case studies: Rebecca
- Sustained a non-traumatic brain injury at the beginning of the pandemic
- Hemorrhagic stroke
- Rupture of arteriovenous malformation (AVM) beside left angular gyrus
Once neural tissue has been destroyed and lost
through neuron death…
that brain tissue won’t be regenerated, it is lost forever, like an amputation
Neuroplasticity, and how can it be boosted?
- Because the brain shows NEUROPLASTICITY, the
remaining brain tissue may begin to take up function of the lost brain tissue - NEUROPLASTICITY can be boosted by increasing:
- Physical activity
- Social interaction/connection
- Novelty