Neuropsychology
Mahdieh Rahmanian; Elham Lobnia
Abstract
Overcoming problems and solving them, and maintaining mental and physical health in life, is very important. By improving cognitive abilities and increasing the processing speed of the mind, it is possible to improve the quality and health of life throughout life. The main goal of this research is to ...
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Overcoming problems and solving them, and maintaining mental and physical health in life, is very important. By improving cognitive abilities and increasing the processing speed of the mind, it is possible to improve the quality and health of life throughout life. The main goal of this research is to investigate the effect of transcranial direct current electrical stimulation (tDCS) on cognitive flexibility, problem solving and brain processing speed in students. This research was conducted as a semi-experimental design with a pre-test and post-test and a one-month follow-up phase. In this research, 30 people were selected as a sample using the purposeful sampling method and they were randomly divided into two experimental and control groups. The tDCS test group was subjected to electrical stimulation during two weeks and in 10 sessions, with a current intensity of 2 milliamps and for 20 minutes. At first, after finishing the stimulation program, and also one month later, tests of cognitive flexibility, problem solving and brain processing speed were taken from both groups and the results were analyzed using covariance test with repeated measurements. Based on the obtained results, it was observed that the difference between the groups is significant and indicates a positive and significant effect of intracranial direct current stimulation on cognitive flexibility, problem solving and brain processing speed. Also, according to the one-month follow-up phase, the mentioned effects are stable.
farangis demehri; LAYA KHAYAMBASHI; Mohsen Saeidmanesh
Abstract
Aim: The purpose of this study was to investigate the Effectiveness of rehabilitation, using Dohsa-Hou, on auditory memory and problem solving in children with learning disorder and auditory discrimination problem in Esfahan. Method: The research method was semi-experimental and study conducted in the ...
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Aim: The purpose of this study was to investigate the Effectiveness of rehabilitation, using Dohsa-Hou, on auditory memory and problem solving in children with learning disorder and auditory discrimination problem in Esfahan. Method: The research method was semi-experimental and study conducted in the form of a pretest-post-test with control group design. The target community of all children with learning disorder in Esfahan which has some forms of auditory discrimination problem. One of the centers of learning disabilities in Isfahan province was referred to the Center for New Immune Disorders, and then among those who had entry criteria, 30 individuals were selected through available sampling method and then randomly assigned into two groups of experimental and control. After doing the pretest in the two groups, the experimental group received 10 therapy sessions Dohsa-Hou rehabilitation, each lasting 60 minutes. Both groups were then subjected to post-test and follow-up. Data were collected using Hepner problem solving questionnaires(1982) and active memory of Dainiman and Carpenter(1980). Data were analyzed using covariance analysis. Result: after rehabilitation sessions, the mean in problem solving and memory in experimental group significantly increase compared to their previous levels(p<0/001). In control group no significant difference was found. Conclusion: rehabilitation, using Dohsa-Hou was effective in improving acoustic memory and problem solving in children with learning disorder and auditory discrimination problem.
