• Journal of the Korean Data and Information Science Society
• /
• 제26권1호
• /
• pp.55-64
• /
• 2015

학습감각과 뇌 활동의 관계를 규명하기 위해 학습자의 학습감각 유형과 뇌의 분화성 및 통합성에 따른 뇌파 지표에 따라 상호관계성을 규명하였다. 학습자는 시각, 청각, 운동감각을 통해서 정보를 습득한다. 이러한 뇌에 반영되는 학습 감각은 다양한 학습감각의 조합으로 나타나는데 뇌의 분화성과 통합성에 관여하는 학습감각의 유형을 측정하기 위해서는 관련된 학습양식을 규명하는 것이 요구된다. 또한 학습감각에 포함된 자기 주도적 학습은 뇌의 기능에 연계된 문제 중심학습이 통합 뇌로 알려진 균형적인 뇌의 활용을 강조하는 것과 관련이 있다는 것을 보여주고 있다. 본 연구결과는 감각운동리듬 (SMR) 뇌파에서 효과적인 통합뇌 학습이 높은 청각학습과 시각학습에 밀접하게 관련되어 있다는 것을 보여주며 베타파에서는 효과적인 통합뇌 학습이 높은 운동감각과 시각 학습에 밀접하게 관련되어 있다는 것을 보여주었다.

• 로봇학회논문지
• /
• 제8권3호
• /
• pp.217-227
• /
• 2013

We introduce a learning system for the sight reading of simple drum sequences. Sight reading is a cognitive-motor skill that requires reading of music symbols and actions of multiple limbs for playing the music. The system provides knowledge of results (KR) pertaining to the learner's performance by color-coding music symbols, and guides the learner by indicating the corresponding action for a given music symbol using additional auditory or vibrotactile cues. To evaluate the effects of KR and guidance cues, three learning methods were experimentally compared: KR only, KR with auditory cues, and KR with vibrotactile cues. The task was to play a random 16-note-long drum sequence displayed on a screen. Thirty university students learned the task using one of the learning methods in a between-subjects design. The experimental results did not show statistically significant differences between the methods in terms of task accuracy and completion time.

• 대한치과의사협회지
• /
• 제58권11호
• /
• pp.670-682
• /
• 2020

This research examined the difference in cognitive load and the virtual presence depending on auditory feedback and task difficulty in haptic-based dental simulation. In the field of dental education, practice-centered training using handpiece has been crucial because a practitioner's psychomotor experience has a significant impact on the mastery of treatment skills. For the novice, it is necessary to reduce errors in dental treatment to enhancing skill acquisition in the haptic practice. In the training process, the force-feedback is crucial to elaborate subtle movement to guide what to do and how it should be hard or soft. However, It is not easy to add force-feedback to generate kinetic experience training. As an alternative method, we examined that auditory feedback can help learners' skill training. In this study, we analyzed how the presence/absence of auditory feedback at the different levels of task difficulty impacts learners' psychological demand and virtual presence in the virtual reality simulation. For this study, 29 dental college students participated in a dental simulation. The participants were grouped into two conditions that are with and without auditory feedback. Additionally, two consecutive tooth preparation tasks with different levels of difficulty were used in the simulation. The auditory feedback condition gives alarms to a learner when he treats a non-targeted tooth with a virtual handpiece. The user's cognitive load and virtual presence were measured to examine the effects of auditory feedback. The results revealed that the main effect was found in cognitive loads. Also, a significant interaction effect was shown in the virtual presence. We discussed the effective design methods for the virtual reality-based dental simulation through the result of this study.

• 말소리와 음성과학
• /
• 제7권4호
• /
• pp.111-121
• /
• 2015

The present study examines the auditory boundary between Korean /o/ and /u/ on a synthesized vowel continuum by Chinese learners of Korean language. Preceding researches reported that the Chinese learners have difficulty pronouncing Korean monophthongs /o/ and /u/. In this experiment, a nine-step continuum was resynthesized using Praat from a vowel token from a recording of a male announcer who produced it in isolated form. F1 and F2 were synchronously shifted in equal steps in qtone (quarter tone), while F3 and F4 values were held constant for the entire stimuli. A forced choice identification task was performed by the advanced learners who speak Mandarin Chinese as their native language. Their experiment data were compared to a Korean native group. ROC (Receiver Operating Characteristic) analysis and logistic regression were performed to estimate the perceptual boundary. The result indicated the learner group has a different auditory criterion on the continuum from the Korean native group. This suggests that more importance should be placed on hearing and listening training in order to acquire the phoneme categories of the two vowels.

• International Journal of Internet, Broadcasting and Communication
• /
• 제16권3호
• /
• pp.98-112
• /
• 2024

As digital education progresses, MOOC (Massive Open Online Courses) are increasingly utilized by learners, making research on MOOC learning outcomes a necessary endeavor. In this study, we systematically investigated the impact of audiovisual elements on learning outcomes in MOOC, highlighting the nuanced role these components play in enhancing educational effectiveness. Through a comprehensive survey and rigorous analysis involving descriptive statistics, reliability metrics, and regression techniques, we quantified the influence of text, graphics, color, teacher images, sound effects, background music, and teacher's voice on learner attention, cognitive load, and satisfaction. We discovered that background music and text layout significantly improve engagement and reduce cognitive burden, underscoring their pivotal role in the instructional design of MOOC. We findings contribute new insights to the field of digital education, emphasizing the critical importance of integrating audiovisual elements thoughtfully to foster better learning environments and outcomes. Not only advances academic understanding of multimedia learning impacts but also offers practical guidance for educators and course designers seeking to enhance the efficacy of MOOC.

• 대한음성학회지:말소리
• /
• 제4호
• /
• pp.20-30
• /
• 1982

The aim of this paper is to analyse difficulties of the pronunciation in swedish vowels encountered by Koreans learners and to seek solutions in order to correct the possible errors. In the course of the analysis the swedish and Korean vowels in question are compared with the purpose of describing differences aha similarities between these two systems. This contrastive description is largely based on the students' articulatory speech level ana the writer's auditory , judgement . The following points are discussed : 1 ) Vowel length as a distinctive feature in Swedish compared with that of Korean. 2) A special attention is paid on the Swedish vowel [w:] that is characterized by its peculiar type of lip rounding. 3) The six pairs of Swedish vowels that are phonologically contrastive but difficult for Koreans to distinguish one from the other: [y:] ~ [w:], [i:] ~ [y:], [e:] ~ [${\phi}$:], [w;] ~ [u:] [w:] ~ [$\theta$], [$\theta$] ~ [u] 4) The r-colored vowel in the case of the postvocalic /r/ that is very common in American English is not allowed in English sound sequences. The r-colored vowel in the American English pattern has to be broken up and replaced hi-segmental vowel-consonant sequences . Korean accustomed to the American pronunciation are warned in this respect. For a more distinct articulation of the postvocalic /r/ trill [r] is preferred to fricative [z]. 5) The front vowels [e, $\varepsilon, {\;}{\phi}$) become opener variants (${\ae}, {\;}:{\ae}$] before / r / or supradentals. The results of the analysis show that difficulties of the pronunciation of the target language (Swedish) are mostly due to the interference from the Learner's source language (Korean). However, the Learner sometimes tends to get interference also from the other foreign language with which he or she is already familiar when he or she finds in that language more similarity to the target language than in his or her own mother tongue. Hence this foreign language (American English) in this case functions as a second language for Koreans in Learning Swedish.

• 한국콘텐츠학회논문지
• /
• 제19권11호
• /
• pp.144-152
• /
• 2019

학습양식은 정보를 습득하고 처리하며 해석하고 조직화하는 도구를 의미한다. VARK(Visual Auditory Read Kinesthetic, VARK) 학습양식은 사용하는 감각양식에 따라 시각, 청각, 읽기/쓰기, 운동감각으로 구분된다. 국내 의과대학에서는 학습자 중심의 학습이 강조되지만 학습자의 VARK 학습양식에 대한 연구는 거의 없다. 본 연구에서는 국내 의과대학 학생을 대상으로 VARK 학습양식을 조사하여 각 학습유형과 성별, 학업성취 수준이 어떤 관계를 가지고 있는지 파악하고자 하였다. 본 연구의 대상은 전북지역 C의과대학·의학전문대학원에 재학 중인 394명의 학생이다. 학습양식검사는 VARK 웹 사이트에서 제공하는 Fleming이 개발한 VARK 검사지© 7.0 한국어버전, 총 16문항이다. 학업성취도는 표준화점수(t점수)로 변환하여 사용하였으며 학습유형에 대한 빈도분석과 집단별 비교를 위한 교차분석 및 분산분석(t-test, ANOVA)을 실시하였다. 연구 결과 학습선호 양식은 단일형이 87명(22.1%), 다중형이 307명(77.9%)이다. 남학생과 여학생 모두 4개 연합형인 VARK를 가장 선호하였다. 성별에 따른 전체 학습양식의 유의미한 차이는 없었다. 의학과 1학년은 단일형이 가장 낮고(8.8%), VARK 유형이 가장 높은 반면(47.8%), 의학과 4학년은 단일형이 가장 높고(30.7%), VARK 4개 연합유형(19.8%)과 3개 연합유형(19.8%)이 가장 낮았다. 모든 학습유형에서 학업성취도 차이는 확인되지 않았다(F=1.09, p=0.37). 의과대학 학생의 학습양식의 선호 결과는 추후 학습자 중심의 다양한 교수전략을 적용하는 기초 자료로서 의미가 있다.