Analysis of the Role of Visual and Auditory Gnosis for the Early Diagnosis of Cognitive Disorders
Author(s):
Artyom A Kuznetsov1
and Larisa I Volkova2
Background: Nowadays, there is a steady trend towards an increase in the prevalence of cognitive impairment. Early diagnosis of moderate cognitive impairment is of particular importance due to the possibility of conducting therapy at this stage that slows down the development or causes regression of cognitive deficit. Some modern studies indicate the possibility of using the level of visual and auditory perception as an early marker of the neurodegenerative process. However, the question of the role of agnosia in the spectrum of clinical manifestations of cognitive deficit still remains open.
Methods: The study was conducted using a random sampling method based on the results of testing patients who were undergoing treatment in the rehabilitation departments of city hospitals in Yekaterinburg. The state of cognitive abilities was recorded using traditional diagnostic scales. Visual perception was studied using questionnaires authored by A.R. Luria. The NEPSY test battery technique was used to test auditory perception.
Finding: The study involved 136 elderly patients in the early recovery period after ischemic stroke. According to the results of the study of cognitive status, deviations from 25·77% to 48·4% were found in the cohort. The results of the measurement of the paired correlation test between visual and auditory gnosis and cognitive status were equal to 0·63% and 0·51%, respectively.
Interpretation: During an analysis of the results of the paired correlation test, a positive relationship of high strength was determined between visual gnosis and cognitive status. Between auditory perception and intellectual abilities, the correlation was positive and weak.
