• PNF and Movement
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• v.12 no.3
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• pp.151-158
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• 2014

Purpose: The purpose of the study is to see the effect of walking when training for chronic stroke patients, Affected side vision impairment induced gait training with rhythmic auditory stimulation in parallel. Methods: This study was the general walking training group, the training group was divided damage induced affected side view, affected side view damage induced by rhythm auditory stimulation training three groups. Intervention period was 4 weeks. 5 times per week, per 30 min entered arbitration. Affected Side vision impairment induced induction training was conducted by installing a red cones, rhythmic auditory stimulation was applied to a regular rhythm training using a smartphone application (Metronome). Paired t-test was performed to see the difference between each group and before the intervention. One-way ANOVA was used to find out the significance probability between each group. Statistical significance was set at 0.05 probability. Results: Regular walking group, rather than affected side vision guided walking group could see increases in the FGA and DGI (P<0.05). And vision impairment induced affected side view and rhythmic auditory stimulation induction training this group than in the combination group walking group obtained higher scores on the FGA, DGI score(P<0.05). Conclusion: If you want to enforce certain rhythmic auditory stimulation of the visual field and side damage induced during gait training for stroke patients will be able to expect a better effect.

• Journal of Korea Entertainment Industry Association
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• v.14 no.5
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• pp.217-227
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• 2020

The purpose of the study is to analyze the changes of the heart rate, hand function, and health related quality of life of the people with intellectual disability through the increase of the auditory stimulation. The subjects were 16 people with intellectual disability. The increase of the auditory stimulation was modulated through the music sound and the intensity was consisted of 60dB, 65dB and 70dB. The wist heart rate and blood pressure monitor was used to measure the heart rate during the application of the auditory stimulation increase. The hand function of right and left hand was measured by the Purdue pegboard. Health related of quality of life was measured by the short form-8 health survey. As the results, the increase of the heart rate was showed by the increase of the auditory stimulation and the decrease of the hand function and health related quality of life was showed. For these, the increase of the auditory stimulation acts as a psychological distress, thereby the increase of the heart rate and the reduction of the hand function and health relate quality of life showed. Thus, to decrease of the heart rate and increase the hand function and the health related quality of life of the people with intellectual disability, the intensity of the auditory stimulation should be considered in the environmental stimulation.

• Animal Bioscience
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• v.35 no.9
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• pp.1454-1460
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• 2022

Objective: Early environmental enrichment in life can improve cognition in animals. The effect of prenatal auditory stimulation on learning ability and fear level in chick embryos remained unexplored. Therefore, this study investigated the effect of prenatal auditory stimulation on the learning ability and fear level of chicks. Methods: A total of 450 fertilized eggs were randomly divided into 5 groups, including control group (C), low-sound intensity music group (LM), low-sound intensity noise group (LN), high-sound intensity noise group (HN) and high-sound intensity music group (HM). From the 10th day of embryonic development until hatching, group LM and group LN received 65 to 75 dB of music and noise stimulation. Group HN and group HM received 85 to 95 dB of noise and music stimulation, and group C received no additional sound. At the end of incubation, the one-trial passive avoidance learning (PAL) task and tonic immobility (TI) tests were carried out, and the serum corticosterone (CORT) and serotonin (5-HT) concentrations were determined. Results: The results showed that compared with the group C, 65 to 75 dB of music and noise stimulation did not affect the PAL avoidance rate (p>0.05), duration of TI (p>0.05) and the concentration of CORT (p>0.05) and 5-HT (p>0.05) in chicks. However, 85 to 95 dB of music and noise stimulation could reduce duration of TI (p<0.05) and the concentration of CORT (p<0.05), but no significant effect was observed on the concentration of 5-HT (p>0.05) and PAL avoidance rate (p>0.05). Conclusion: Therefore, the prenatal auditory stimulation of 85 to 95 dB can effectively reduce the fear level of chicks while it does not affect the learning ability.

• PNF and Movement
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• v.14 no.2
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• pp.121-130
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• 2016

Purpose: The purpose of this study was to investigate the effects of visual and auditory stimulation on the ability to perform exercise. Methods: One hundred twenty subjects were randomly divided into four groups (Green light and Fast tempo music, GF; Green light and Slow tempo music, GS; Red light and Fast tempo music, RF; and Red light and Slow tempo music, RS). One of either two visual stimuli or one of two auditory stimuli were applied to each group. The experiment was conducted randomly twice in two environments: one had visual and auditory stimuli and one had no stimulation. Muscle strength, grip, endurance, quickness, agility, concentration, and balance were measured to determine the ability to perform exercise. Results: Significant differences were found in the muscle strength of the participants who were exposed to the auditory factor and the interaction of visual and auditory factors. In endurance, significant differences were found in all of the factors: visual, auditory, and the interaction of visual and auditory. In quickness, agility, and balance ability there were significant differences in the visual factor. In concentration, there was a significant difference in the auditory factor. Conclusion: Visual stimuli, auditory stimuli, and their interaction influenced the ability to perform exercise. These facts imply that providing the proper environmental stimulation is important to increase the ability to perform during exercise.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.5
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• pp.2187-2196
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• 2011

The objective of this study was to investigate the effect of gait training using rhythmic auditory stimulation on gait symmetry of stroke patients. Forty chronic stroke patients were divided into four groups by intervention. Group A and B received auditory stimulation when they walk with comfortable gait speed. Group A received auditory stimulation to paralyzed side while group B to non-paralyzed side. Group C and D received auditory stimulation with 10% faster gait speed than their comfortable gait speed. Group C received auditory stimulation to paralyzed side while group D to non-paralyzed side. Gait training using auditory stimulation was done in each group during five minutes. Gait symmetry was evaluated by formula and temporal variables of gait were measured by gait analysis system. Step time was decreased significantly in all groups except group A (P<.05), and gait symmetry was also improved significantly in all groups except group A (P<.05). Cadence was increased significantly in all groups except group A (p<.05), but velocity was not increased in all groups. Therefore we conclude that RAS gait training is effective in improving gait symmetry and can be useful to stroke patient's gait training.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.10a
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• pp.535-538
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• 2005

The purpose of this work is to study a process organization on space cognition by visio-auditory stimulation. We develop the system of visuo-auditory stimulation and Humans responses measurement to observe the relationship between the sensory and the motor system fur the localization of visual and auditory target direction in the space. The experiments is performed in a soundproof chamber, 2163 red, green and yellow LED(Luminescent Diode, Brightness: $20cd/m^2$ 1 degree apart each other)arrayed in front of half-circle panel were used and 57 Speaker(5 degree apart each other) arrayed in the hidden of half-circle panel. Physiological parameters such as EOG (Electro-Oculography), head movement and their synergic control are measured by BIOPAC system and Optotrak Certus. This result shows that the response latency time of the perception motion in the center is laster than the periphery of panel. These results can be used in the study of characterizing the spatial cognition.

• PNF and Movement
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• v.15 no.1
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• pp.41-50
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• 2017

Purpose: This study aimed to determine how inclined-treadmill walking training with rhythmic auditory stimulation affects balance and gait in stroke patients. Methods: Ten chronic stroke patients, admitted to B hospital in Gangwon-do between August and October 2015, were trained 5 times per week for 4 weeks; each session lasted 30 minutes. To assess balance and gait before and after the training, the timed up and go (TUG) test, Berg balance scale (BBS), six minute walking test (6MWT), and three-dimensional spatiotemporal gait ability were used to measure the relevant variables. The data were analyzed using the paired t-test, and the statistical significance level was 0.05. Results: There were significant differences in the TUG, BBS, 6MWT, gait speed, cadence, single limb support (SLS), and symmetric index (SI) before and after training (p < 0.05). Conclusion: The results showed that the inclined-treadmill walking training with rhythmic auditory stimulation was effective at improving the balance and walking ability of stroke patients. Hearing training, using one of the basic procedures of proprioceptive neuromuscular stimulation, is considered to be an important aspect.

• International Journal of Precision Engineering and Manufacturing
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• v.7 no.2
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• pp.41-45
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• 2006

This paper deals with human spatial cognition using visual and auditory stimulation. More specially, this investigation is to observe the relationship between the head and the eye motor system for the localization of visual target direction in space and to try to describe what is the role of right-side versus left-side pinna. In the experiment of visual stimulation, nineteen red LEDs (Luminescent Diodes, Brightness: $210\;cd/^2$) arrayed in the horizontal plane of the surrounding panel are used. Here the LEDs are located 10 degrees apart from each other. Physiological parameters such as EOG (Electro-Oculography), head movement, and their synergic control are measured by BIOPAC system and 3SPACE FASTRAK. In the experiment of auditory stimulation, one side of the pinna function was distorted intentionally by inserting a short tube in the ear canal. The localization error caused by right and left side pinna distortion was investigated as well. Since a laser pointer showed much less error (0.5%) in localizing target position than FASTRAK (30%) that has been generally used, a laser pointer was used for the pointing task. It was found that harmonic components were not essential for auditory target localization. However, non-harmonic nearby frequency components was found to be more important in localizing the target direction of sound. We have found that the right pinna carries out one of the most important functions in localizing target direction and pure tone with only one frequency component is confusing to be localized. It was also found that the latency time is shorter in self moved tracking (SMT) than eye alone tracking (EAT) and eye hand tracking (EHT). These results can be used in further study on the characterization of human spatial cognition.

• Proceedings of the KOSOMBE Conference
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• v.1996 no.11
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• pp.240-242
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• 1996

Use of electrical stimulation for diagnosis and treatment of pyhsiolgocial impairment on the auditory system was reported by many researchers since 1800. Unfortunately, there were no standard methods or theoretical bakground for choosing stimulus conditions because of the lack of understanding on the transmission of sound through the auditory pathways. Therefore, if we could find the mechanisms of normal and abnormal functions for the system objectively, it may be possible to establish the conditions for the appropriate treatment This study was devised with three experimental conditions of electrical stimulation(0.1, 1, and 10mA) to verify the effect of electrical stimulation on the auditory system. ABRs and ECochGs were obtained from 3 Guinea Pigs before and after each stimulation, and five parameters were extracted from ABR and ECochG waveforms. The results showed that the mean differences of the first peaks of ABR, I, before and after all the stimulus conditions were significant at the significant level of p<0.05. Also, amplitude of ECochGs peak(AP) showed higher degrees of differences for the electrical stimulation than that of ABRs. Based on the results of this experiment establishment of an electrical model which characterizes the auditory system could be achieved by computer simulation. This will lead to the design of most accurate model for the real auditory system, which provide the quantitive information regarding diagnosis and treatment.

• Proceedings of the KOSOMBE Conference
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• v.1997 no.05
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• pp.370-373
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• 1997

We are exposed to the various external stimuli input from the environment, which cause emotional changes based on the characteristics of the stimuli. Unfortunately there are no quantitative results on relationship between human sensibility and the characteristics of physiological signals. The objective of this study was to quantify EEG signals evoked by auditory stimulation based on the assumption that the analysis of the variability on the characteristics of the EEG waveform may provide the significant information regarding changes in psychological states of the subject. The experiment was devised with seven experimental conditions, which are control and six different types of auditory stimulation. Six subjects were used to obtain EEGs while introducing auditory stimulation. Wavelet transformation was employed to analyze the EEG signals. The results showed that the reconstructed signals at the decomposition level revealed the different energy value on the EEG signal. Also, general patterns of EEG signals in rest state compare with negative and positive stimulus were found. This study could be extended to establish an algorithm which distinguishes psychophysiological states of the subjects exposed to the auditory stimulation.