QUICK STUDY Flashcards
Timeline of observed signs after possible concussive event
1) disorientation or confusion immediately after the event,
2) impaired balance within 1 day after the injury,
(3) slower reaction time within 2 days after injury
What percentage of sensory information we take in is visual?
80% of the sensory information we process is VISUAL, which is a DYNAMIC MOVEMENT of the information.
What are compensatory Strategies
develop memory books
shorter work sessions
frequent feedback
always review previous sessions to ensure retention
Which DTI measures indicate loss of neurotransmission integraty?
FA down
Diffsion Up
How is Structural connectivity measured?
DTI
What is Structural connectivity?
Structural connectivity refers to the physical connections between different regions of the brain, which are formed by bundles of axons that transmit information between neurons
What is Functional connectivity?
Functional connectivity refers to the synchronization of activity between different brain regions. This synchronization is essential for normal brain function and can be disrupted by a blow to the head, even in the absence of structural damage
What is PREVALENCE?
Prevalence
Prevalence = the number of cases of a disease in a specific population at a particular time point or over a specified period of time.
When we talk about prevalence, we can either refer to ‘point prevalence’ or ‘period prevalence’.
3 signs of EXCUTIVE DYSFUNCTION
Difficulty in completing activities that require:
organization
problem-solving
time management
Chronic
constantly recurring
Persisting for a long time
Signs of Executive Dysfunction
Lack of organization
Difficulty planning
Difficulty with problem-solving
Difficulty with time management
Impaired attention
What is Nexus?
A series connections linking 2 or more events.
What percentage of post 9/11 veterans expereinced TBI?
17.5% had mild TBI and 3.0% had moderate to severe TBI
Association of Traumatic Brain Injury With Mortality Among Military Veterans Serving After September 11, 2001
Jeffrey T. Howard
Critical component in definition of concussion?
Any ALERATION IN MENTAL STATE at the time of the injury
How is Functional connectivity measured?
Functional MRI
Resting state fMRI