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Full-Text Articles in Psychiatry and Psychology
Hiv-1 Transgenic Rat: Selective Alterations In Motivation And Histological Examination Of Medium Spiny Neurons Of The Nucleus Accumbens, Michael N. Cranston
Hiv-1 Transgenic Rat: Selective Alterations In Motivation And Histological Examination Of Medium Spiny Neurons Of The Nucleus Accumbens, Michael N. Cranston
Theses and Dissertations
Motivational alterations in HIV-1+ individuals are associated with decreased performance on tasks involving frontal-subcortical circuitry and the nucleus accumbens. In the present study, the HIV-1 transgenic (Tg) rat was used to assess long-term HIV-1 viral protein exposure on motivated behavior using activity chambers (40x40cm) and voluntary wheel running. Adult ovariectomized female HIV-1 Tg animals (n=21) to F344 controls (n=26) were pair-housed under a 12:12 light/dark cycle. Voluntary running was measured with 34 cm-diameter running wheels for ~60 minutes/day for 3 ½ months. There were no significant differences between HIV-1 Tg and F344 control rats in voluntary wheel running during the …
Phonological And Orthographic Repetition Effects Across Words In Adult Skilled Sentence Reading: An Eye Movement Analysis, Ti Yan
Theses and Dissertations
Visual word recognition is central to skilled silent reading. This project investigated the situation in which two words within a sentence share phonological information. Previous eye movement reading studies have made attempts to understand how prior exposure to a word could influence the speed of recognizing another phonologically and/or orthographically similar word. Results have been accounted for by different visual word recognition models which agree on the competition among similar words in the lexicon. However, a closer inspection revealed several concerns. First, there is little direct evidence demonstrating the across-word effect in normal reading. Second, the existing work in English …