فصلنامه روانشناسی شناختی

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This research was designed and conducted to compare the cognitive condition of two groups of healthy people and MTBI patients one year after their injury in terms of both executive functions and working memory.In this causal-comparative study, which was conducted from February 2017 to October 2018, two groups of individuals, 48(MTBI), male Patients from 30 to 55 years old who were admitted to the ICU in Shohadaye Haftome Tir and Baqiyatallah Hospitals and 64 healthy men from personnel and Patients' Visitors that had all the criteria for entering the research were chosen. Both groups were tested with two scales Wisconsin and Wechsler Number Memory. The two groups had significantly difference (p<0/01), in the executive functions at the levels of Categories, Perseverative, correct and error responses, number of trials to complete first category and conceptual level responses.Also, the results show that the two groups had significantly difference(p<0/01), in the forward and reverse auditory memory, forward and reverse visual memory, total score of auditory memory, total score of visual memory and span auditory memory and the two groups had significantly difference(p<0/05), in the span visual memory. In other words, patients with MTBI has overall poorer results for all the tests than healthy people.according to the findings of this research, mild traumatic brain injury can disturb executive functions of the brain's prefrontal lobes after one year. Hence, it is suggested that in clinical and legal evaluations of the patients, this issue to be considered and both psychological and medical interventions done simultaneously to facilitate the treatment process and cognitive rehabilitation of the patients and to prevent individual, social and financial consequences and costs associated with MTBI.
 

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The aim of this study was to investigate the effectiveness of cognitive rehabilitation, on improving the executive functions of selective attention, inhibitory control and working mwmory in elderly people with mild cognitive impairment. This experimental study was a Single Subject of type A-B, which 6 elderly (4 women and 2 men) with an average age of 62 years old were selected via  purposeful convenience sampling and randomly assigned into two groups of control (n=3) and experimental (n=3). The evaluation of selective attention and inhibitory control was done using Stroop, Go/NO Go and N-back tests, and the "ARAM" rehabilitation program was presented in 10 one-hour personal sessions for each experimental group subjective. All subjective in both groups was evaluated 6 times (before, during, just after and 2 months following the intervention) and also control group were evaluated simultaneously without receiving any interventions. Using visual analysis, collected data revealed that the scores of both tests of executive functions in experimental group, were steadily increased all through intervention, while the control group scores’ did not make significant changes. Also, two-month follow-up evaluations showed a stable improvement in executive functions of the experimental group. Therefore, it can be concluded that cognitive rehabilitation based on ARAM program has improved the functions of selective attention, inhibitory control and working memory in elderly with mild cognitive impairment. As there are many documentaries suggesting possibility of leading mild cognitive impairment to more serious cognitive disabilities such as Alzheimer’s disease, such findings can confirm possibility of improving cognitive functions of elderly people with mild cognitive impairment with, with lower therapeutic costs applying the help of technology