Cognitive linguistics
Mahdieh Rahmanian; Maryam Zamani; Sahrzad Pakdelan
Abstract
Introduction: Memory and concentration are two main components of cognitive functions that play a significant role in the human learning process. The purpose of this research is to compare the effectiveness of two therapeutic methods of mindfulness training and transcranial electrical stimulation along ...
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Introduction: Memory and concentration are two main components of cognitive functions that play a significant role in the human learning process. The purpose of this research is to compare the effectiveness of two therapeutic methods of mindfulness training and transcranial electrical stimulation along with N-Back memory strengthening exercise in improving the memory function and concentration of students. Method: The current research method is applied and the method of data collection is semi-experimental with a pre-test-post-test research design. In order to investigate the objectives of the research, 30 subjects were selected by available sampling method and randomly divided into two groups of 15 people. All participants performed Wechsler clinical memory test and TOVA test. Then one group underwent a mindfulness test and the other group participated in transcranial electrical stimulation sessions along with N-Back memory strengthening exercise. At the end, both groups were re-evaluated. Findings: The results of this research showed that both intervention methods, namely mindfulness training and transcranial electrical stimulation along with N-Back memory strengthening exercise, improve memory and concentration. Both methods had an effect on improving attention performance. In terms of memory components, the two groups differed only in the visual memory component. Based on the results, transcranial electrical stimulation combined with N-Back memory training was more effective than mindfulness training. Conclusion: According to the results, it seems that both methods are effective in improving attention, but biological treatments perform better. It will be when biological foundations and specific cognitive processes are considered.
Samira Hasanzadeh; Hossein Zare
Abstract
The present study aimed to examine the effectiveness of transcranial direct current stimulation in improving visual response control and everyday memory among patients with ischemic stroke. For this purpose, 20 patients with ischemic stroke (with an average age of 38 to 73 years) were selected by the ...
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The present study aimed to examine the effectiveness of transcranial direct current stimulation in improving visual response control and everyday memory among patients with ischemic stroke. For this purpose, 20 patients with ischemic stroke (with an average age of 38 to 73 years) were selected by the available sampling method then they were assigned randomly into two experimental and control groups. Cognitive assessment of patients, including pre-intervention, evaluation immediately after the intervention and three months after intervention using Sunderland everyday memory Questionnaire (1983) and IVA+Plus (2015) (Integrated Visual and Auditory Continuous Performance) Test was done. The experimental group received 15 sessions for 20 minutes with a current of 2 mA Transcranial direct current stimulation (TDCS) for four weeks, and the control group did not receive any intervention. Data were analyzed by Repeated Measure. According to the findings, treatment of transcranial direct current stimulation has had a positive effect on improving the cognitive functions such as everyday memory and visual response control of patients with ischemic stroke in the experimental group . also obtained these results at the follow-up stage, which was 3 months after the intervention. (p<0/05). Therefore, this study has provided evidence for the effectiveness of a transcranial direct current stimulation program (TDCS) on everyday memory and visual response control in patients with ischemic stroke, which can improve memory and visual response control in this category of patients and can have a positive effect on the cognitive performance of patients.
