جستجوی مقالات مرتبط با کلیدواژه « mirror neuron » در نشریات گروه « پزشکی »

: Imagery is the concept of assimilation, creating or recreating a perception experience the sensory moderator in mind. the aim of this study was to the relationship between mirror neuron action and different mental imagery speeds in the motor performance.
The research method was semi-empirical. The subjects included 30 female students of Shahid Chamran University (average age 22± 1.12) selected through a purposive sampling (No experience basketball game) method and categorized in three groups of rapid-speed, real-speed, low-speed imagery. Following the basketball dribble function in pretests, the subjects were involved in imagery for a period of four consecutive days, and were subsequently tested for the real dribble function on the middle cones in the posttests. They were also subjected electroencephalographic assessment during imagery, focusing primarily on the reaction of the mirror neurons within the process.
All of the group improved dribble function (p≤0.05). With the effect size observed a significant improvement in the groups with slow-speed and real-speed imagery compared to those receiving high-speed imagery. Additionally, higher function of the mirror neurons was observed in the groups subjected to slow-speed imagery and also there is significant relationship mirror neuron action and different mental imagery speeds on the basketball dribble function (p≤0.05).
The mirror neurons within the premotor cortex establish an essential nervous mechanism within the cognitive activity pattern which impacts the effect of imagery for the improvement of motor skills.

Cerebrovascular accident (CVA) is a severe debilitating neurological condition in adults. This study sought to assess the effect of observation and mimicking functional activities on weight distribution and dynamic balance index improvement in lower limbs of hemiparetic patients based on mirror neuron theory. This clinical trial was performed on 36 males and females aged 45-60 years who suffered ischemic CVA for the first time. Subjects were randomly divided into 3 groups as follows: viewers of functional film, viewers of non-functional (symbol) film and the control group (not watching any film). The physiotherapy treatments in all groups were similar. Weight percentage distribution was not significant. The values prior to and after dynamic balance index were statistically significant in all 3 groups. Significant differences were found between group 1 and the other 2 groups in terms of balance index percentage change (level 6). Observation and imitation of action along with rehabilitation exercises and functional activities had a positive effect on the improvement of balance Index in post-stroke patients.

Mirror neurons are fired either by executing a motor task or by observing someone else performing it. The purpose of present study was to evaluate the postural control of balance-observers. In present cross-sectional study، the anteroposterior، mediolateral and overall postural sway of 20 students were evaluated by Biodex balance system while they did or did not observe postural balance status. Paired sample t test was used for the statistical analysis of the data. Mediolateral and overall sway enhanced by observing balance position (P = 0. 018، P = 0. 049). Antroposterior postural sway did not show any difference in two positions. Observing postural control increased postural sway. These findings could be best accounted for by the activity of mirror neuron that involved in managing postural control. It can be concluded that simultaneously executing the motor task at hand by therapist may serve as an overload during exercise therapy.