DYNAMIC VISUAL SKILLS Flashcards
The Message
We live in a Dynamic Visual Environment.
Our safety and performance depends on us accurately gathering visual information that is dynamic - in motion or changing.
The second message.
Our brain is designed to interface with the outside world to predict, detect and process moving and changing visual information.
DAI
**DAI – DIFFUSE AXONAL INJURY **
How does our brain interact with the outside world that is constantly changing and moving?
Our brain is designed to interact with the outside world to PREDICTING, DETECTING AND PROCESSING moving and changing visual information.
What is the critical component in the definition of a concussion?
A measurable disruption of the normal functioning of the brain following a blow to the head.
What is the static vision?
Processing visual information that is not moving.
It is stationary
Examples of static vision
Looking at a photograph, identifying the color of an object.
What is dynamic vision?
Processing visual infomraiton that is moving.
Example of activities in a dynamic visual enviroment
sports, driving, dancing, moving through a moving enviroment
Examples of the role that dynamic vision plays in our everyday life
allows us to
Navigate through our enviroment
Interact with moving objects
Coordinate our movement in relation to our surroundings
What is a saccade?
A rapid eye movement
What is the propose of a saccadic eye movemnt?
To explore our visual enviroment
To scan our surroundings and focus on important visaul informaiton
We use a saccadic eyemovements for what activities?
reading,
driviing
playing sport particualary ball sports
moving through crowded enviromants
What is a ocular pursuit?
A continuous smooth eye movement
Why is a pursuit needed?
To track a moving object
Examples of when we use the smooth pursuit?
to TRACK a moving object
a bird or an airplane flying in the sky
tracking a ball
tracking a car or biker moving down the road
tracking a walker or animal
Is attention a dynamic visual skill?
Yes, it involves selectively focus on relevant stimuli while filtering our distractions
What is Vergence?
A dynamic visual skill that allows us to perceive depth
How does Vergence help us in a dynamic visual world?
It continously adjusts the two eyes to precisely converge or diverge to locate how far objects are from us
What is the difference between the DORSAL stream and the VENTRAL stream
Dorsal is dynamic
Venral is static
Value of symptom survey
standardized way to assess presence and severity of concussion sysmptoms
