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Online Laboratory Experiment Learning Module for Biomedical Engineering Physiological Laboratory Courses

ABSTRACT: By early spring 2020, the COVID-19 pandemic caused mandatory campus closures of academic institutions nationwide, prompting the rapid transition to online instruction. While lectures and exams were more straightforwardly administered online using video-chatting software, many hands-on laboratory-based courses were forced to develop creative solutions. In response to online instructional requirements, instructors at the University of California Irvine developed an online electroencephalography (EEG) laboratory to simulate the laboratory experiment for students unable to perform the experiment on campus. The laboratory experiment was performed and video recorded by the instructional team under three different scenarios to provide students with multiple data sets acquired under various experimental conditions often enacted by students. Students were required to complete a pre-lab quiz, analyze the acquired EEG data offline, complete a post-lab quiz, and submit their laboratory report to communicate their findings prior to final exams. Student performances compared to prior student performances, and qualitative survey responses, were examined to assess the effectiveness of and response to the online laboratory format. Based on student feedback and lab report grades, the majority of students responded positively and demonstrated an understanding of the EEG experiment’s learning outcomes. In summary, the online EEG laboratory enabled students to achieve the main learning objectives and become familiar with the laboratory experiment, indicating its success as an alternative laboratory experiment. Electronic supplementary material The online version of this article (10.1007/s43683-020-00034-9) contains supplementary material, which is available to authorized users.

SUBMITTER: King C

PROVIDER: S-EPMC7567418 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Project description:BackgroundUndergraduate biomedical engineering (BME) students interested in pursuing a career in research and development of medical or physiological monitoring devices require a strong foundation in biosignal analysis as well as physiological theory. Applied learning approaches are reported to be effective for reinforcing physiological coursework; therefore, we propose a new laboratory protocol for BME undergraduate physiology courses that integrates both neural engineering and physiological concepts to explore involuntary skeletal muscle reflexes. The protocol consists of two sections: the first focuses on recruiting soleus motor units through transcutaneous electrical nerve stimulation (TENS), while the second focuses on exploring the natural stretch reflex with and without the Jendrassik maneuver. In this case study, third-year biomedical engineering students collected electromyographic (EMG) activity of skeletal muscle contractions in response to peripheral nerve stimulation using a BioRadio Wireless Physiology Monitor system and analyzed the corresponding signal parameters (latency and amplitude) using the MATLAB platform.Results/protocol validationElectrical tibial nerve stimulation successfully recruited M-waves in all 8 student participants and F-waves in three student participants. The students used this data to learn about orthodromic and antidromic motor fiber activation as well as estimate the neural response latency and amplitude. With the stretch reflex, students were able to collect distinct signals corresponding to the tendon strike and motor response. From this, they were able to estimate the sensorimotor conduction velocity. Additionally, a significant increase in the stretch reflex EMG amplitude response was observed when using the Jendrassik maneuver during the knee-jerk response. A student exit survey on the laboratory experience reported that the class found the module engaging and helpful for reinforcing physiological course concepts.ConclusionThis newly developed protocol not only allows BME students to explore physiological responses using natural and electrically-induced involuntary reflexes, but demonstrates that budget-friendly commercially available devices are capable of eliciting and measuring involuntary reflexes in an engaging manner. Despite some limitations caused by the equipment and students' lack of signal processing experience, this new laboratory protocol provides a robust framework for integrating engineering and physiology in an applied approach for BME students to learn about involuntary reflexes, neurophysiology, and neural engineering.

Project description:This paper aims to survey language teaching MOOCs that promote intercultural competence (IC). Specifically, the survey aims to identify the keywords most relevant to MOOCs with IC components, the languages taught, the offering countries, and the embedded soft skills. The selection of keywords is important because they can indicate connection between different disciplines. After trialing a broader set of keywords in several rounds of initial search, we identified five keywords that are the most relevant to language education with IC components on MOOCs: culture, intercultural, cross culture, multi culture, and society. Then courses with these five keywords on language learning are selected for further analysis. The results are summarized as follows: (1) Most language teaching MOOCs are found under the keyword “culture,” indicating a strong connection between language education and intercultural communication; (2) In terms of the target languages and the offering countries, it is found that English, Chinese, and Spanish are the major languages widely taught in the context of intercultural competence; China, United States, and Ireland are the three countries which offer the highest numbers of MOOCs in this respect; United States, United Kingdom, and Australia are the three countries which offer the highest numbers of MOOCs of different languages. The results indicate that a limited number of languages and offering countries dominate the language learning MOOCs. The study calls for a plurality of languages and cultures to be taught through MOOCs, making more diversified knowledge systems accessible to global audiences. (3) The language teaching MOOCs not only focus on language but also aim to foster five types of soft skills (language learning skills, communication skills, business and entrepreneurship skills, career development skills, and cultural development skills), suggesting that intercultural competence and its related soft skills are usually important components embedded in such MOOCs courses.

Project description:In the spring of 2020, brick and mortar colleges had to abruptly adapt to the reality of COVID-19 and transition to entirely online environments in a manner of weeks. This required a rapid (< 2 weeks) acquisition of knowledge and flexibility in using technology, most commonly Zoom. Upon completion of the semester, and after debriefing with numerous faculty teaching required courses across the biomedical engineering department at ____ University, the most common comments were that the online engagement and the online environment were nothing close to the traditional classroom environment: students were less likely to show up; less likely to enable their cameras so you could see their faces; and less likely to ask or answer questions in class. To address these issues, in this paper we make easily implementable recommendations that will increase engagement and improve the inclusivity of online courses that can be applied to any biomedical engineering course offered in an online environment. Student engagement is especially important for promoting student learning as has been well documented in education research (Taylor and Parsons in Curr. Issues Educ, 2011. Retrieved from http://cie.asu.edu/; Armstrong in The Best Schools: how human development research should inform educational practice. Association for Supervision and Curriculum Development (ASCD), Alexandria; 2006). The four recommendations for improving the engagement in the online classroom are: (1) make it a priority to stress the importance of having their cameras on during lecture and explain why it's important; (2) have a "Daily Question" at the start of lecture where all students respond in chat followed by a brief discussion; (3) make use of the polling feature in Zoom to frequently assess student understanding and upon discovering student confusion on any given question, send them to breakout rooms to discuss, incorporating a quick active learning exercise that can help reduce the monotony of online lecture; and (4) create handouts that are circulated prior to class for students to take different pieces of a particular problem, solve them in their teams in individual breakout rooms, and then discuss the content and results back in class with all teams together. These techniques were shown to increase engagement and attendance and fostered a welcoming environment in the online classroom, contributing positively to student experience and in turn allowing students to achieve student learning outcomes despite the difficult circumstances.

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Online Laboratory Experiment Learning Module for Biomedical Engineering Physiological Laboratory Courses

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