نتایج جستجو برای: elementary visual hallucinations
تعداد نتایج: 412257 فیلتر نتایج به سال:
Few imaging studies have investigated the conscious ‘pictures’ of the external environment that we associate with seeing (visual percepts). The problem that confronts the neuroscientist is recognizing the neural correlate of ‘seeing’ and differentiating it from afferent sensory activity, which is assumed to remain unconscious1. One solution is to study a visual system in which percepts have bec...
AIMS Complex visual hallucinations occur in 70% of dementia with Lewy bodies (DLB) cases and significantly affect patient well-being. Visuo-cortical and retinal abnormalities have been recorded in DLB and may play a role in visual hallucinations. The present study aimed to investigate the lateral geniculate nucleus (LGN), a visual relay centre between the retina and visual cortex, to see if cha...
In 1936, two clinical reviews, one by de Morsier, the other by L'Hermitte and de Ajuriaguerra, formulated an approach to visual hallucinations that continues to this day. Breaking with previous traditions, the papers championed visual hallucinations as worthy of study in their own right, de-emphasizing the clinical significance of their visual contents and distancing them from visual illusions....
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