Naser Omidzadeh, Mahin Aghdaei, Alireza Farsi,
Volume 14, Issue 27 (8-2024)
Abstract
The purpose of the research was to investigate the effect of auditory focus of attention with high and low cognitive load on sports performance and working memory adolescent. The research was semi-experimental and included elementary and high school students of Kohnani city. The statistical sample was 20 students aged 11-13. In the pre-test, soccer chip shot was used. The acquisition stage was performed on 4 consecutive days. In the stages of delayed recall and transfer, n-back test and soccer chip kick were performed. The results showed that in the group of auditory focus of attention with cognitive high load, the effect of auditory focus of attention with high cognitive load on sports performance and working memory was significant (p≥ 0.01) and The group of auditory focus of attention with low cognitive load showed improvement only in working memory (p≥ 0.01). So Cognitive load manipulation has a positive effect on working memory and sports performance.
Mrs Maryam Khalaji, Dr Mahin Aghdaei, Dr Alireza Farsi, Dr Alessandro Piras,
Volume 100, Issue 100 (10-2020)
Abstract
Using auditory concurrent feedback with the goal of gaze path learning is one of the novelty methods in the attention field. The present study aimed to determine the effect of bisensory feedback using eye movement sonification on the decision-making of the badminton clear shot direction. In a Semi experimental strategy, with pre-post design without a control group and clinical method, participants performed recognizing the direction of the shot under unisensory and bisensory training conditions. Response accuracy, response time, and fixation duration were measured in the pre-test, immediate retention, and delayed retention. The results showed that in the immediate and delayed retention, the bisensory group had higher response accuracy and shorter response time than the unisensory group. The bisensory group had a longer fixation duration in key areas than the unisensory group in both times. The use of auditory feedback can probably be considered as a way to improve decision-making skills at the novice level.
Zahra Bari, Mahin Aghdaei, Alireza Farsi, Hamidreza Kobravi,
Volume 100, Issue 100 (10-2020)
Abstract
The aim of present study was to determine the effect of different levels of balance task difficulty and muscle pattern sonification on balance elderlies. eleve healthy elderly mean age 66/09± 2/26 yr were selected voluntarily. The study inclusion criteria included no structural postural problems, lack of lower extremity fractures over the past six months, no uncorrected visual impairments, no vestibular disorders, and no use of nerve medications, narcotics, alcohol, and any substance leading to dizziness or lack of focus and affecting balance
Participants were asked to stand still on a stable platform under two conditions (with sonification of muscle activity pattern and without feedback) in three difficulty levels (6, 8, and 10). Stability index scores (Overall, Anterior- Posterior and Medial- Lateral) were calculated by Biodex Balance System. The duration of each test was 20 seconds and rest times were 10 seconds. Results showed that with increasing task difficulty, scores of overall balance ,Medial- Lateral balance and Anterior- Posterior balance. In addition, There was a significant reduction in the scores of Overall balance (p= 0/005), anterior - posterior balance (p= 0/002) and medial - lateral balance (p= 0/022) and sonification of muscle activity pattern condition compared with without sonification of muscle activity pattern condition in the level of 6. Overall, the results of this study showed that increasing task difficulty increases postural sway, and the availability of sonification of muscle activity pattern can improve balance and reduce postural sway.
Keywords: Electrical activity, Stability index, Biofeedback , Task Difficulty
