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In patients suffering from depression, neuropsychological deficiencies of attention, memory, psychomotor speed and executive functions are observed.
The aim of this study is to find relationship between selected cognitive functions, and intensity of depression and anxiety as state and trait in depressed patients.
16 Patients meeting the ICD 10 criteria of depressive disorders (F32, F33) were recruited. Patients with mild-to-moderate depression as measured by Beck Depression Inventory (BDI) score were included in the study. The battery of cognitive neuropsychological tests used to assess cognitive functions included: trail making test, part A and B, and Stroop test, part RCNb and NCWd. The intensity of anxiety as state and trait was assessed with the use of the Spielberger State-Trait Anxiety Inventory (STAI). The results were analyzed statistically.
Results of the study:
In the examined group no statistically significant relation between the results neuropsychological tests (trail making test, part A and B, Stroop test) and the intensity of depression measured with BDI, and the intensity of anxiety as state and trait, measured with STAI was found. Interestingly a statistically significant relation was found between intensity of depression and intensity of anxiety.
It seems interesting that no co-relation between the clinical symptoms and cognitive functions was found. It may be consistent with some of the observations, according to which a pharmacological treatment of depression causes an improvement in cognitive functioning of the patients which is independent of the clinical improvement.
Cognitive deficits and anxiety are common symptoms in patients suffering from schizophrenia.
The aim of the research was to find a relationship between selected cognitive functions and intensity of anxiety as state and trait in people suffering from schizophrenia.
18 patients (9 women and 9 men) with a diagnose of paranoidal schizophrenia (according to ICD-10) were recruited to the study. The battery of cognitive neuropsychological tests used to assess cognitive functions included: trail making tests, part A and B, and Stroop test, part RCNb and NCWd. The intensity of anxiety as state and trait was assessed by means of the Spielberger State-Trait Anxiety Inventory (STAI).
In the examined group statistically significant relation was found between the results of trail making test, part A and B (measuring psychomotor speed and visual spatial working memory), as well as part RCNb of the Stroop test (measuring reading speed), and the intensity of anxiety as state measured with STAI. Another statistically significant correlation was found between results of trail making test, part A (measuring psychomotor speed) and anxiety as trait measured with STAI. No other significant correlations between results of the applied cognitive tests and anxiety as state and trait were found.
The above correlations between cognitive tests results and intensity of anxiety indicate that there must be a modulating impact of emotions on some of measured cognitive functions. The awareness of these correlations may be important in the process of constructing rehabilitation programmes for patients.
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