Validation of clay modeling as a learning tool for the periventricular structures of the human brain

Visualizing anatomical structures and functional processes in three dimensions (3D) are important skills for medical students. However, contemplating 3D structures mentally and interpreting biomedical images can be challenging. This study examines the impact of a new pedagogical approach to teaching neuroanatomy, specifically how building a 3D‐model from oil‐based modeling clay affects learners’ understanding of periventricular structures of the brain among undergraduate medical students in Colombia. Students were provided with an instructional video before building the models of the structures, and thereafter took a computer‐based quiz. They then brought their clay models to class where they answered questions about the structures via interactive response cards. Their knowledge of periventricular structures was assessed with a paper‐based quiz. Afterward, a focus group was conducted and a survey was distributed to understand students’ perceptions of the activity, as well as the impact of the intervention on their understanding of anatomical structures in 3D. Quiz scores of students that constructed the models were significantly higher than those taught the material in a more traditional manner (P < 0.05). Moreover, the modeling activity reduced time spent studying the topic and increased understanding of spatial relationships between structures in the brain. The results demonstrated a significant difference between genders in their self‐perception of their ability to contemplate and rotate structures mentally (P < 0.05). The study demonstrated that the construction of 3D clay models in combination with autonomous learning activities was a valuable and efficient learning tool in the anatomy course, and that additional models could be designed to promote deeper learning of other neuroanatomy topics. Anat Sci Educ 11: 137–145. © 2017 American Association of Anatomists.     

A psychometric evaluation of the anatomy learning experiences questionnaire and correlations with learning outcomes

The Anatomy Learning Experiences Questionnaire (ALEQ) was designed by Smith and Mathias to explore students' perceptions and experiences of learning anatomy. In this study, the psychometric properties of a slightly altered 34‐item ALEQ (ALEQ‐34) were evaluated, and correlations with learning outcomes investigated, by surveying first‐ and second‐year undergraduate medical students; 181 usable responses were obtained (75% response rate). Psychometric analysis demonstrated overall good reliability (Cronbach's alpha of 0.85). Exploratory factor analysis yielded a 27‐item, three‐factor solution (ALEQ‐27, Cronbach's alpha of 0.86), described as: (Factor 1) (Reversed) challenges in learning anatomy, (Factor 2) Applications and importance of anatomy, and (Factor 3) Learning in the dissection laboratory. Second‐year students had somewhat greater challenges and less positive attitudes in learning anatomy than first‐year students. Females reported slightly greater challenges and less confidence in learning anatomy than males. Total scores on summative gross anatomy examination questions correlated with ALEQ‐27, Pearson's r = 0.222 and 0.271, in years 1 and 2, respectively, and with Factor 1, r = 0.479 and 0.317 (all statistically significant). Factor 1 also had similar correlations across different question types (multiple choice; short answer or essay; cadaveric; and anatomical models, bones, or radiological images). In a retrospective analysis, Factor 1 predicted poor end‐of‐semester anatomy examination results in year 1 with a sensitivity of 88% and positive predictive value of 33%. Further development of ALEQ‐27 may enable deeper understanding of students' learning of anatomy, and its ten‐item Factor 1 may be a useful screening tool to identify at‐risk students. Anat Sci Educ 10: 514–527. © 2017 American Association of Anatomists.     

富勒烯C60的研究及应用

富勒烯C60的研究已涉及到化学、生物、材料等众多学科和应用研究领域，并越来越显示出巨大的潜力和重要的研究及应用价值。文章讨论了C60的发现、命名、结构、性质、合成及应用的前景。     

National survey on anatomical sciences in medical education

The drivers for curricular change in medical education such as the addition of innovative approaches to teaching, inclusion of technology and adoption of different assessment methods are gaining momentum. In an effort to understand how these changes are impacting and being implemented in gross anatomy, microscopic anatomy, neuroanatomy/neuroscience, and embryology courses, surveys were sent out to course directors/discipline leaders at allopathic Medical Schools in the United States during the 2016‐2017 academic year. Participants in the study were asked to comment on course hours, student experiences in the classroom and laboratory, amount of faculty participation, the use of peers as teachers in both the classroom and laboratory, methods used for student assessment and identification of best practices. Compared to data published from a similar survey in 2014, a number of changes were identified: (1) classroom hours in gross anatomy increased by 24% and by 29% in neuroanatomy/neuroscience; (2) laboratory hours in gross anatomy decreased by 16%, by 33% in microscopic anatomy, and by 38% in neuroanatomy/neuroscience; (3) use of virtual microscopy in microscopic anatomy teaching increased by 129%; and (4) the number of respondents reporting their discipline as part of a partially or fully integrated curriculum increased by greater than 100% for all four disciplines. Anat Sci Educ 11: 7–14. © 2017 American Association of Anatomists.     

Beyond the Sex Binary: Toward the Inclusive Anatomical Sciences Education

Developments in biology and genetics in recent decades have caused significant shifts in the understanding and conceptualization of human biological variation. Humans vary biologically in different ways, including individually, due to age, ancestry, and sex. An understanding of the complexities of all levels of biological variation is necessary for efficient health care delivery. Important steps in teaching medical students about human variation could be carried out in anatomy classes, and thus, it is important that anatomical education absorbs new developments in how biological variation is comprehended. Since the early 1990s biological sex in humans has been vigorously investigated by scientists, social scientists, and interest groups. Consequently, the binary division in male and female sex has been called into question and a more fluid understanding of sex has been proposed. Some of the major textbooks teach anatomy, particularly of the urogenital system, as a male-female binary. Anatomical sciences curricula need to adopt a more current approach to sex including the introduction of the category of “intersex”/“differences in sexual development” and present sex as a continuum rather than two sharply divided sets of characteristics. This approach offers a better understanding of the complexity of sex differences and, at the same time, provides students with an improved theoretical framework for understanding human variation in general, transcending the limitations of biological typology. When well delivered, the non-binary approach could play a significant contribution to the formation of competent and responsible medical practitioners and avoidance of problematic practices such as non-consensual “normalizing” surgeries.     

The benefits and limitations of using ultrasonography to supplement anatomical understanding

Anatomical understanding is critical to medical education. With reduced teaching time and limited cadaver availability, it is important to investigate how best to utilize in vivo imaging to supplement anatomical understanding and better prepare medical graduates for the proliferation of point‐of‐care imaging in the future. To investigate whether using short sessions of in vivo imaging using ultrasonography could benefit students' anatomical knowledge and clinical application, we conducted a 2‐hour session on abdominal anatomy using ultrasonography in small groups of five to six students, for both first‐ and second‐year student cohorts. Individual feedback was collected to assess student perceptions. To measure retention and understanding, a short examination containing ultrasound images and questions and performance of a clinical skill (gastrointestinal' tract examination) were assessed. Ultrasonography sessions were highly valued by the students, with 90% of the students reporting their understanding was improved, and over 70% reporting increased confidence in their anatomical knowledge. However, the assessments showed no appreciable impact on skills or understanding related to abdominal anatomy and examination. We conclude that the risk associated with limited exposure increasing confidence without increasing skills remains real and that in vivo imaging is not effective when used as a short adjunct teaching tool. The widespread use of ultrasonography means finding the best way to incorporate ultrasound into medical education remains important. To this end, we are currently implementing an extended program including echocardiography and multiple anatomical sessions that will determine if frequency and repetition of use can positively impact on student performance and understanding. Anat Sci Educ. © 2013 American Association of Anatomists.     

A “Do‐It‐Yourself” interactive bone structure module: Development and evaluation of an online teaching resource

A stand‐alone online teaching module was developed to cover an area of musculoskeletal anatomy (structure of bone) found to be difficult by students. The material presented in the module was not formally presented in any other way, thus providing additional time for other curriculum components, but it was assessed in the final examination. The module was developed using “in‐house” software designed for academics with minimal computer experience. The efficacy and effectiveness of the module was gauged via student surveys, testing student knowledge before and after module introduction, and analysis of final examination results. At least 74% of the class used the module and student responses were positive regarding module usability (navigation, interaction) and utility (learning support). Learning effectiveness was demonstrated by large significant improvements in the post‐presentation test scores for “users” compared with “non‐users” and by the percentage of correct responses to relevant multiple choice questions in the final examination. Performance on relevant short answer questions in the final examination was, on average, comparable to that for other components. Though limited by study structure, it was concluded that the module produced learning outcomes equivalent to those generated by more traditional teaching methods. This “Do‐It‐Yourself” e‐learning approach may be particularly useful for meeting specific course needs not catered for by commercial applications or where there are cost limitations for generation of online learning material. The specific approaches used in the study can assist in development of effective online resources in anatomy. Anat Sci Educ 6: 107–113. © 2012 American Association of Anatomists.     

A novel three-dimensional tool for teaching human neuroanatomy

Three‐dimensional (3D) visualization of neuroanatomy can be challenging for medical students. This knowledge is essential in order for students to correlate cross‐sectional neuroanatomy and whole brain specimens within neuroscience curricula and to interpret clinical and radiological information as clinicians or researchers. This study implemented and evaluated a new tool for teaching 3D neuroanatomy to first‐year medical students at Boston University School of Medicine. Students were randomized into experimental and control classrooms. All students were taught neuroanatomy according to traditional 2D methods. Then, during laboratory review, the experimental group constructed 3D color‐coded physical models of the periventricular structures, while the control group re‐examined 2D brain cross‐sections. At the end of the course, 2D and 3D spatial relationships of the brain and preferred learning styles were assessed in both groups. The overall quiz scores for the experimental group were significantly higher than the control group (t(85) = 2.02, P < 0.05). However, when the questions were divided into those requiring either 2D or 3D visualization, only the scores for the 3D questions were significantly higher in the experimental group (F_1,85= 5.48, P = 0.02). When surveyed, 84% of students recommended repeating the 3D activity for future laboratories, and this preference was equally distributed across preferred learning styles (χ² = 0.14, n.s.). Our results suggest that our 3D physical modeling activity is an effective method for teaching spatial relationships of brain anatomy and will better prepare students for visualization of 3D neuroanatomy, a skill essential for higher education in neuroscience, neurology, and neurosurgery. Anat Sci Educ. © 2010 American Association of Anatomists.     

Body donation in India: social awareness, willingness, and associated factors

With the attendant rise of the number of medical colleges in India over past few decades, the demand for cadavers used in medical education and research is growing. However, there is an insufficient supply of donated cadavers available for dissection. This study was undertaken to assess the general population's awareness of body donation programs and willingness to donate in the State of Maharashtra, India. The willingness of participants to donate was compared with age, gender, and education of the respondents. A total of 625 adult individuals from the State of Maharashtra participated in a survey composed of questions about age, sex, education, awareness of body donation programs, and willingness to donate. It was found that 90.9% of the medical colleges surveyed reported an inadequate supply of cadavers. Of the general population, 32.1% of respondents were aware of body donation, compared to 95.83% of health care professionals. However, only 19.5% of the general population and 44.9% of health care professionals were willing to donate their bodies for anatomical education. Younger age groups, males, graduates, and postgraduates were found more willing to donate their bodies. Organ donation was preferred over body donation. A lack of awareness about body donation was the main factor responsible for respondents' "no body donation" response in the general population, along with firm religious beliefs and customs, the fear that the donated body will not be treated with respect and dignity, and the unacceptability of the dissection of one's own body. To overcome the current shortage of donated cadavers, efforts should be undertaken to change the mindset of the wider Indian society toward body donation. The authors believe this is possible through awareness campaigns and that prospective donors' concerns should be addressed appropriately. Proper guidance and assistance regarding body donation should be easily available for potential donors.