• Korean Architects
• /
• no.6 s.66
• /
• pp.57-64
• /
• 1974

• Korean Journal of Otorhinolaryngology-Head and Neck Surgery
• /
• v.61 no.11
• /
• pp.573-579
• /
• 2018

Background and Objectives Cochlear dead region (CDR) is a region in the cochlear where hearing loss has occurred due to damage to the inner hair cells and/or neurons. Recently, a subjective test involving a pure-tone test in the presence of threshold-equalizing noise (TEN) was introduced to identify CDR. However, for uncooperative patients, such a subjective method would be unsuitable and objective methods would be needed instead to detect CDR. The acoustic change complex (ACC) is an evoked potential elicited by changes in the ongoing sound. In this study, we developed an objective method of identifying CDR by combining ACC response with a TEN test, namely the TEN-ACC test, and investigated its feasibility in normal-hearing listeners. Subjects and Method Ten normal-hearing subjects participated in this study. All subjects underwent both behavioral TEN test and electrophysiological TEN-ACC test. The stimuli for the TEN-ACC test consisted of TEN and embedded pure tones with different frequencies/signals to noise ratios (SNRs). To identify the thresholds, the range SNR of stimulation was varied from 0 to 20 dB, in stages of 4 dB. Results The ACC responses of all subjects who participated in this study were well elicited by stimuli developed for the TEN-ACC test. We confirm that the pure-tones embedded in TEN elicited the objective ACC response. Conclusion The results of this study suggest that the novel TEN-ACC test can be applied to evoke ACC in normal-hearing listeners. Future research should incorporate hearing-impaired listeners to determine the feasibility of the TEN-ACC test as an objective method to identify CDR.

• Proceedings of the Korea Contents Association Conference
• /
• 2018.05a
• /
• pp.33-34
• /
• 2018

영화는 시청각 예술이고 다양한 시청각적 기법을 활용하여 영화에서 이야기하고자 하는 주제를 전달한다. 형체가 없는 이야기는 시각과 청각을 통해 형상화되고 그 과정에서 나타나는 등장인물의 심리변화 역시 시청각적 도구를 활용해 표현할 수 있다. 본고에서는 영화 "펀치 드렁크 러브"를 연구대상으로 삼아 영화에서 숨겨진 심리를 표현하기 위한 음악적 기법 중 하나인 라이트모티브(Leitmotiv)를 통한 표현기법을 고찰한다. 이는 영화음악에서 인물 심리의 상징적인 표현에 대한 예시와 관점을 제시한다.

• Clinical and Experimental Pediatrics
• /
• v.49 no.10
• /
• pp.1056-1060
• /
• 2006

Purpose : As hearing ability affects language and cognitive development, early detection and intervention of congenital hearing defects is very important. We analyzed the result of newborn hearing screening using automated auditory brainstem response and estimated the incidence of congenital hearing defects in newborn infants in Korea. Methods : Hearing screening tests were done on 7,218 newborn infants who were delivered at Cheil General Hospital from July 1, 2004 to June 30, 2005. The first screening test was done on the second day of life with automated auditory brainstem response(AABR) using $ALGO{\bigcirc}^{(3)}$ Newborn hearing screener($Natus^{(R)}$ Medical Incorporated, San Carlos, USA) with 35 dB sound level. The newborn infants who did not pass the initial screening test took the second screening AABR test before discharge from the nursery. Infants who did not pass these screenings at the nursery were followed up at the Department of Otorhinolaryngology, Samsung Seoul Hospital. Results : Total 7,218 infants(83.3 percent of total 8,664 live births of the Cheil General Hospital) were screened in the nursery, and 55 of them failed to pass the newborn screening. Among 55 infants who were referred, six were lost during follow-up, and 14 were confirmed as hearing impaired. Six of them(42.8 percent) do not have any risk factors for hearing impairment. We can estimate that the incidence of hearing defects is about 1.9-2.8 per 1,000 live births. Conclusion : Automated auditory brainstem response is an effective tool to screen the hearing of newborn infants. Congenital hearing loss is more frequent than metabolic diseases on which screening tests are available in the newborn period. About 40 percent of infants who have hearing defects do not have any risk factors for hearing impairment. Therefore, universal newborn hearing screening must be recommended to all neonates.

• Korean Journal of Clinical Laboratory Science
• /
• v.51 no.2
• /
• pp.198-204
• /
• 2019

Various treatments can be attempted in patients with intractable epilepsy, in whom the symptoms of seizures are not controlled by various drugs. On the other hand, in patients requiring a surgical method, a preoperative examination is needed to determine the portion of seizure site to be resected. Electrodes are inserted into the cerebral cortex for accurate lesion measurements and safe operation. The electrodes inserted in the cortex not only record the electroencephalography (EEG), but also allow various tests to confirm the function of the part. One of these methods is the evoked potential test. From January 2015 to December 2018, the trends of measured waveforms in were analyzed 70 patients. The somatosensory evoked potential (SSEP) recorded on the electrode inserted in the cerebral cortex can be searched for the pathway of the central sulcus to avoid the primary motor area and primary sensory area. In addition, using the middle latency auditory evoked potentials (MLAEP) and flash visual evoked potentials (FVEP), the functional cortex in the auditory cortex and the visual cortex were compared with the seizure focus point on the EEG to help determine the location of the ablation and minimize functional impairment after surgery.

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1987.05a
• /
• pp.7.3-8
• /
• 1987

청성뇌간 유발반응이 Juwett 및 Sohmer와 Feinmesser에 의하여 보고된 이래 타각적 청력검사로서 임상적응용에까지 이르렀다. 타각적 청력검사는 반응역치와 청각역치의 오차가 적어야 하며 주파수별로 역치측정이 가능하여야 하며 개인차가 적고 반응의 재현성이 높아야 되며 반응의 판정이 용이해야 함이 필요조건으로서 이러한 조건이 피검자의 수면상태하에서도 충족되어야 한다. 저자들은 정상 성인 청력자를 대상으로 sedation전후의 ABR에 대한 latency 및 amplitude를 중심으로 관찰하여 다음과 같은 결과를 얻었다. 1) Sedative의 사용에 있어서 amplitude및 latency의 차이는 없었다. 2) Sedative의 사용에는 무관하게 low frequency filter에서 high frequency filter보다 voltage의 유의한 차가 있었다.

• Journal of Korean Physical Therapy Science
• /
• v.11 no.2
• /
• pp.38-45
• /
• 2004

Appropriate physical position and balance means giving the least stress and the most useful biomechanically to the body. As this fails, one would have functional recovery problem regardless of disability. There reported better effective on Dynamic training rather than Static training for a proper recovery of physical position, and additionally required Sensory Feedback. Those who have disability of balance, especially Central Nervous System lesion should he provided with variety of Sensory Feedback, and also Dynamic Balance training used by is quite effective.

• 한국HCI학회:학술대회논문집
• /
• 2008.02a
• /
• pp.130-134
• /
• 2008

Touch screen phone which is expected to play a big part of the mobile market for the next few years, has many merits but demerits of inaccurate feedback. It offers audio and tactile feedback to strengthen the weak point. This study aims to see if audio feedback and vibration feedback react upon each other under realistic conditions. We had a qualitative research in perception after using touch screen phone feedback. The result showed that with any feedback users were satisfied more than without any feedback and there was diversity in response. We ran the study again to see the performance level and the projective workload between the kind of feedback and interrupting feedback environment Performance rates were faster with audio feedback and according to the projective workload assessment users felt that task was easier and less annoying with audio-vibration feedback. The results suggest that audio feedback could be more effective than vibration feedback. A future study will figure out the relationship between the factors of qualitative-controlled feedback and learning time and the performance, and the main cause to make people prefer one feedback over another in a realistic world.

• The Journal of the Korea Contents Association
• /
• v.18 no.7
• /
• pp.120-126
• /
• 2018

The film is an audiovisual art and conveys stories using various audiovisual techniques. Among the auditory elements, music has a wide variety of expressive techniques, a wide range of applications, and is sometimes used as a proprietary tool to convey stories. This study examines the musical expression technique for expressing the psychology of the character in the film by using the movie "Punch Drunk Love" as a subject of study. We study the use of music used to reveal meaning that does not appear on the screen in the film story flow, which is a tool to create the hidden meaning of the person's inner psychology and situation. This provides an example and perspective of the contrast and symbolic expression of character psychology in film music.

• 한국HCI학회:학술대회논문집
• /
• 2008.02b
• /
• pp.552-557
• /
• 2008

'Digilog Book' dealing with the combination of each advantage of analog sensibility on texts and digital sensation on virtual reality is one of the noble applications of U-book. Based on contents from books, enhancing 3D immersive display enable readers to enjoy various experiences with multisensory feedback provided. Also, 'Digilog Book' provides digitally created stories that would project different experiences and environments interacting users' choices on the interface of the book. This study focuses on developing users friendly implementation tools providing more interaction between digitally generated stories and digitally generated interface so that interaction between virtual reality and actual realty is expanded through simulating contexts and extents. From the application scenario 'Digilog Book' would perform as a storytelling tool with developing subordinated elements such as context structure, screen structure, definition of writing function, writing interface, writing system structure, etc. Therefore, this study would become a significance to direct and indicate the development of writing techniques on virtual reality back to life through digitally augmented reality.