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Attention In Hiv, Kathleen Marie Van Dyk
Attention In Hiv, Kathleen Marie Van Dyk
Dissertations, Theses, and Capstone Projects
In contrast to the striking benefit of advances in antiretroviral therapy on longevity and health in the HIV+ population, mild cognitive disorders persist (Heaton, Clifford et al., 2010). Additional factors that may be related to cognitive decline and warrant consideration in this population are aging and physical health status. Among cognitive domains affected, attention and processing speed have emerged as particularly vulnerable to the effects of HIV. There are also age effects observed in these domains, and we proposed that reduced physical health can also impact cognition in these areas, comparably to pain. Sensitive measures of attention that vary attentional …
The Neurophysiology Of Intersensory Selective Attention And Task Switching, Jeremy W. Murphy
The Neurophysiology Of Intersensory Selective Attention And Task Switching, Jeremy W. Murphy
Dissertations, Theses, and Capstone Projects
Our ability to selectively attend to certain aspects of the world and ignore others is fundamental to our day-to-day lives. The need for selective attention stems from capacity limitations inherent in our perceptual and cognitive processing architecture. Because not every elemental piece of our environment can be fully processed in parallel, the nervous system must prioritize processing. This prioritization is generally referred to as selective attention. Meanwhile, we are faced with a world that is constantly in flux, such that we have to frequently shift our attention from one piece of the environment to another and from one task to …