OCC2014 Lecture Notes - Lecture 5: Traumatic Brain Injury, Midbrain, Attention
28 Jul 2018
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Document Summary
Describe the brain and cognitive function in brief. Describe the ot role in evaluation of ulsn. The ability to redirect thoughts and actions towards a stimulus or event for a defined period of time, despite the presence of extraneous or unrelated stimuli. A process where information is selected for further processing or discarded. Different modalities: visual attention, auditory attention, sensory attention (body percept) Anoxic damage (when brain is deprived of oxygen): exposure to toxic substances, substance abuse, cns infections. Do they have difficulty ignoring distractions (including noise, pain etc. Midbrain reticular activating system: arousal, mood, motivation, sustained attention and vigilance. Parieto-temporo-occipital area: orienting, engaging and disengaging of attention, and object recognition processes. Frontal lobes, anterior cingulate gyrus and basal ganglia: response selection and control, intentional control, active switching and inhibition and strategies for manipulating information. Right hemisphere: mediates alertness and sustained attention. Capable to detecting and interpreting full visual field and space.
