Below are examples of symptoms grouped by domain. For a detailed discussion of signs and symptoms associated with RHD, see, for example, Blake (2018). RHD results in a collection of symptoms that vary in severity and in domains affected, depending on the site and extent of injury to the underlying neural substrate. This condition is known as crossed aphasia (e.g., Coppens, Hungerford, Yamaguchi, & Yamadori, 2002). In these individuals, damage to the right hemisphere may result in symptoms of aphasia similar to those normally associated with a left hemisphere lesion. In a very small proportion of right-handed individuals, the language centers are located in the right hemisphere of the brain, rather than in the left hemisphere. Impairments can include anosagnosia (reduced awareness of deficits) and visual neglect (aspects of visual stimulus are ignored), both of which can significantly affect spoken and written language.ĭeficits associated with RHD may be more evident during the performance of multidimensional, complex tasks such as conversation (Ferré, Ska, Lajoie, Bleau, & Joanette, 2011) and can have a significant impact on functional performance in social and vocational settings (Blake, 2006 Lehman & Tompkins, 2000). RHD can also cause impairments in other cognitive domains-including attention, memory, and executive functioning-that can interfere with communication abilities.
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