• Investigative Magnetic Resonance Imaging
• /
• 제25권3호
• /
• pp.197-200
• /
• 2021

Ramsay Hunt syndrome (RHS) is a disease caused by varicella-zoster virus (VZV) infection that can be diagnosed through clinical symptoms with or without imaging evaluations. The typical features of RHS on imaging evaluation include signal changes and enhancement in the internal auditory canal (IAC) nerves, and the labyrinthine segment of cranial nerve VII (CN VII) and cranial nerve VIII (CN VIII). In some patients, inner ear structure (cochlear and vestibular apparatus) is involved in RHS. Neurologic complications, such as encephalitis and meningitis, are rare in RHS, but are known to occur. Therefore, magnetic resonance imaging (MRI) is necessary to detect both abnormal signal intensity in the IAC, CN VII, CN VIII, inner and ear structure, and CNS complications. We report an RHS patient with CN VII, VIII, and leptomeningeal enhancement within the cerebellar folia on 10-min delayed, contrast-enhanced (CE), three-dimensional fluid-attenuated inversion recovery (3D-FLAIR) imaging.

• 대한두개안면성형외과학회지
• /
• 제11권2호
• /
• pp.73-76
• /
• 2010

Purpose: There are several surgical methods for correcting a velopharyngeal insufficiency (VPI) but in some cases, it is not possible to achieve complete recovery of the velopharyngeal function. This paper introduces a new therapy for treating hypernasality without further surgery using continuous positive airway pressure (CPAP). Methods: CPAP therapy was applied to seven VPI patients for eight weeks from April of 2007 to September of 2009. All patients underwent palatoplasty for the cleft palate and six patients underwent palatal lengthening for VPI before CPAP therapy. A speech pathologist performed an auditory perceptual evaluation to evaluate the improvement in hypernasality after 8-week CPAP therapy. Results: Six patients showed an improvement in hypernasality after CPAP therapy according to the auditory perceptual evaluation. One patient with severe hypernasality responded to the early part of therapy but the hypernasality did not improve after therapy. Conclusion: CPAP therapy might be effective in reducing the hypernasality in patients with VPI by providing resistance training to strengthen the velopharyngeal closure muscles. In particular, CPAP therapy could be more effective for patients who show mild to moderate hypernasality after surgery.

• 한국음향학회지
• /
• 제22권2호
• /
• pp.88-95
• /
• 2003

본 논문에서는 바닥충격음의 감성적 상하한치를 기준으로 바닥충격음의 감성적 평가등급을 설정하기 위하여 바닥충격음 레벨에 따른 피험자의 주관적 반응을 현장 청감실험을 통하여 조사하였다. 표준 바닥충격원인 중량, 경량 충격음과 현재 일본에서 신 중량충격원으로 제안되고 있는 고무공충격음, 그리고 실제 충격음 (Jumping)을 대상으로 청감실험을 실시하였으며 청감실험에 사용된 주관적 반응의 평가척도로는 일본 건축학회에서 활용되고 있는 3개의 평가척도와 소음평가어휘를 활용한 평가척도를 사용하였다. 청감실험 결과, 바닥충격음 레벨에 따른 주관적 반응의 관계는 1차 회귀식으로 나타났으며, 감성적 하한치가 중량충격음의 경우 역A특성 가중 바닥충격음 레벨 (L/sub i, Fmax, AW/)이 46㏈, 경량충격음의 경우 역A특성 가중 규준화 바닥충격음 레벨 (L'/sub n, AW/)이 56㏈로 나타났다. 최종적으로 청감실험 결과에서 도출된 감성적 하한치의 기준으로 총 3등급의 평가등급이 설정되었다.

• 감성과학
• /
• 제4권1호
• /
• pp.43-51
• /
• 2001

When consumer evaluates a product, every aspec of the product affects the evaluation. Human uses at least five sensory organs for the evaluation. Multi-sensory or multi-modal design tries to add auditory and olfactory factors to the traditional visual-centered design. For the multi-modal design, it is essential to understand relationships between combined sensory stimuli and human sensibility. Information between simple sensory stimulus and human sensibility is pre-requisite to combine multi-modal stimuli. This study investigated human sensibility against 8 colors and 30 sounds, presented independently. The combined stimuli of color and sound were made based on the sensibility generated by each stimulus. Human sensibility generated by the combined stimuli of color and sound were made based on the sensibility generated by each stimulus. Human sensibility generated by the combined stimuli was investigated with 20 female subjects. For combined stimuli that generated the same kind of sensibility respectively, generated sensibility was same but strength was diminished. For combined stimuli that generated the different sensibilities respectively, subjects showed neutral sensibility or no special sensibilities. Sensibilities to the same stimuli also showed difference depending on personal background of the subjects.

• 한국정밀공학회지
• /
• 제20권9호
• /
• pp.151-158
• /
• 2003

The impulse noise of bullet after shooting in small arms has an effect on the hearing ability of human. Although a silencer has been developed for noise reduction in small arms, there is only a few researches about relationships between the sound pressure level and the auditory sense of human. In this study, the quantitative sound pressure levels are revealed by experimental measurements of impulse noise with each silencer type. And the performance evaluation for noise suppression of a silencer in small arms is carried out to reduce a serious loss of the hearing ability of the small arms user. It is concluded that the evaluated results can be utilized for checking sound pressure and data accumulation for new small arms design with silencer.

• 한국소음진동공학회:학술대회논문집
• /
• 한국소음진동공학회 2005년도 추계학술대회논문집
• /
• pp.808-811
• /
• 2005

To use the impact ball as a new standard floor impact source, the objective and subjective properties of the impact bali were investigated. The results showed that not only the objective properties of the impact ball such as the Impact force exposure level, mechanical impedance but also the psychological parameters were more similar to those of the human impact than the bang machine. In addition, most of the subjects chose the impact bail sound as the most similar sound to the human impact sound in the auditory experiment.

• 대한후두음성언어의학회지
• /
• 제19권2호
• /
• pp.89-95
• /
• 2008

주관적 음성평가는 음향분석기기를 이용한 객관적 음성 평가와 함께 음성분석에 유용하고 의미있는 평가방법이며 현재 알려진 검시법정 중에서 GRBAS 음성평가, VHI, patient self-perceptual voice rating이 가장 널리 사용되고 있고 인정받는 방법이다. 주관적 음성평가는 음성의 상태를 모두 대변할 수은 없으며 객관적인 음성평가에 대한 보완적인 의미를 가진다. 현재 개발되어 있는 주관적 음성평가 방법들이 유용한 평가도구이긴 하지만 나름대로의 문제점과 제한점을 가지고 있기 때문에 이에 대한 개선과 보완을 위한 지속적인 연구와 개발이 요구된다.

• 대한감각통합치료학회지
• /
• 제15권2호
• /
• pp.66-79
• /
• 2017

목적 : 본 연구는 발달지연 아동에게 청지각 훈련과 병행한 감각통합 치료를 시행하여 감각처리, 시지각 발달, 주의집중에 미치는 영향을 알아보고자 한다. 연구방법 : 발달지연 및 의심소견을 보이는 아동 만 4~7세 아동 3명을 대상으로 2016년 11월부터 2017년 1월 까지 총 9주간 청지각 훈련과 감각통합치료를 병행하여 실시하고 평가 하였다. 개별실험연구방법(single subject research design)중 ABA' 설계를 사용하였으며, 기초선 1기간(A) 4회, 치료 1기간(B)15회, 기초선2 기간(A')4회로 총 23회기를 적용하였다. 시지각 능력은 기초선 A와 A'기간에 Korean Developmental Test Visual Perception-2(K-DTVP-2)를 통하여 측정하였고 감각처리능력은 감각프로파일(Sensory Profile)로 평가하였다. 주의집중 행동의 유지시간은 기초선 기간에 중재가 없는 상태에서 측정하였으며 중재 기간에는 매 중재 후 10분간 마무리 활동시 소근육 과제를 제공하여 비디오로 촬영하였고 등간기록법(interval recording)의 전간기록법을 사용하여 30초 간격으로 주의집중 발생을 평가하였다. 결과 : 청지각 훈련과 감각통합치료를 실시하기 전보다 후에 시지각 기능과 감각처리의 점수의 수치상 향상은 있었고, 주의집중에서는 A아동에게서 통계적으로 유의한 차이가 있었으나 B, C 아동은 통계적으로 유의한 차이가 없었다. 결론 : 청지각 훈련을 병행한 감각통합 치료가 발달지연 아동의 시지각 기능과 주의집중에 긍정적인 영향을 미친다고 결론짓기에는 한계가 있다. 그러나 일부 발달지연 아동에게서 주의집중의 유의미한 증진이 있었고 점수의 향상이 있었다. 향후 발달지연 아동에게 연구기간, 표준데이터를 제시할 수 있는 평가도구를 적용한다면 명확한 결과가 나타날 수 있을 것이다. 또한 주의집중 유도와 학습을 준비하기 위한 치료방법으로 청지각 훈련의 연구가 추가적으로 시행되어야 한다.

• Archives of Plastic Surgery
• /
• 제38권6호
• /
• pp.871-874
• /
• 2011

Purpose: In some patients with velopharyngeal insufficiency (VPI), Hypernasality can persist after surgical management. Continuous Positive Airway Pressure (CPAP) is applied to these patients for treating hypernasality. The purpose of this study is to report follow-up results of postoperative CPAP therapy. Methods: After performing palatal lengthening, CPAP therapy was applied to three patients for eight weeks from July of 2008 to November of 2009. Perceptual evaluation, nasometry, and nasopharyngeal endoscopy were performed to evaluate hypernasality, nasalance and size of the gap at velopharyngeal port. Each evaluation was made before surgery, right after CPAP therapy and during follow-up of more than a year after CPAP therapy. Results: All of the patients showed improvement in hypernasality right after CPAP therapy according to the auditory perceptual evaluation, nasometry and nasopharyngeal endoscopy. But the improvement in hypernasality in these patients did not last during follow-up. Conclusion: In this study, our results suggest that CPAP therapy is effective in reducing hypernasality for postoperative VPI patients immediately after the therapy, but hypernasality may be worsen in some patients during follow-up. Therefore we recommend follow-ups after CPAP therapy to see if the efficacy of CPAP therapy lasts.

• 한국소음진동공학회논문집
• /
• 제17권7호
• /
• pp.611-616
• /
• 2007

This study aims to clarify differences among the responses of users depending on variations in audio-visual landscape elements used to create amenities in residential areas. For the purpose, a laboratory experiment was performed to evaluate the emotions of subjects. As a result of subjective evaluation, it was found that the emotions of subjects were more significantly promoted in providing both sounds and images at the same time, than in providing images alone. In addition, as a result of comparing the variables of relativistic energy alpha waves have by measuring their brain waves, it was seen that alpha waves increased when providing harmonious sound sources with images, except for specific sound sources. Thus, it is considered that provision of sound sources capable of promoting human emotions can contribute greatly to improving the value of space for the sake of comfortable housing environment.