Improved measurement of depth perception

Electromechanical system for Howard-Dolman device was developed. System is used for human depth perception measurements without tactual stimuli

Chorusing, synchrony, and the evolutionary functions of rhythm

A central goal of biomusicology is to understand the biological basis of human musicality. One approach to this problem has been to compare core components of human musicality (relative pitch perception, entrainment, etc.) with similar capacities in other animal species. Here we extend and clarify this comparative approach with respect to rhythm. First, whereas most comparisons between human music and animal acoustic behavior have focused on spectral properties (melody and harmony), we argue for the central importance of temporal properties, and propose that this domain is ripe for further comparative research. Second, whereas most rhythm research in non-human animals has examined animal timing in isolation, we consider how chorusing dynamics can shape individual timing, as in human music and dance, arguing that group behavior is key to understanding the adaptive functions of rhythm. To illustrate the interdependence between individual and chorusing dynamics, we present a computational model of chorusing agents relating individual call timing with synchronous group behavior. Third, we distinguish and clarify mechanistic and functional explanations of rhythmic phenomena, often conflated in the literature, arguing that this distinction is key for understanding the evolution of musicality. Fourth, we expand biomusicological discussions beyond the species typically considered, providing an overview of chorusing and rhythmic behavior across a broad range of taxa (orthopterans, fireflies, frogs, birds, and primates). Finally, we propose an “Evolving Signal Timing” hypothesis, suggesting that similarities between timing abilities in biological species will be based on comparable chorusing behaviors. We conclude that the comparative study of chorusing species can provide important insights into the adaptive function(s) of rhythmic behavior in our “proto-musical” primate ancestors, and thus inform our understanding of the biology and evolution of rhythm in human music and language

Eclectica

MFA thesi

American Ways: A Course in Contemporary U.S. Culture for International Students

International student populations are increasing in large proportions at universities across the United States. The onset of culture shock and difficulty communicating and relating with their new peers compounds an already difficult situation. Universities and colleges need a method to accommodate these students and help facilitate their transitions into a completely new academic and social environment. “American Ways: A course on Contemporary American Culture for International Students” is a semester-long university level course designed to give knowledge and understanding of “American” culture to international students attending U.S. higher education institutions. It will cover topics surrounding U.S. culture that include: basic knowledge and skills, American doxa (taken-for-granted understanding of American culture), and American diversity. The course will be coupled with accompanying international student focused social programming to reinforce what they have learned in the classroom. The students will be required to participate in social programming to give them the opportunity to apply their knowledge in real-world situations. Through this course, international students will gain crucial knowledge about U.S. culture to both better understand the new environment in which they are living and studying as well as to improve their social interaction with their domestic counterparts. “American Ways” will allow international students to better adapt to social situations in the United States, as well as relieve common misconceptions of U.S. culture they may have. Lessons from the course will contribute to the literature and practices for remedies to international student integration and assimilation to U.S. universities and colleges. The replicable and adaptable model will better equip U.S. higher education institutions to alleviate international student adjustment issues

Do red deer hinds prefer stags that produce harsh roars in mate choice contexts?

Red deer stags give two types of roars during the breeding season, termed ‘common’ and ‘harsh’ roars. This study tested the hypothesis that the characteristic spectro-temporal structure of male harsh roars functions to directly attract females towards male callers during the breeding season. The results show that oestrous hinds look for longer towards speakers broadcasting sequences containing harsh roars, but do not preferentially approach or spend more time in close proximity to speakers broadcasting harsh roars over those broadcasting only common roars. While these observations confirm that the specific acoustic structure of male harsh roars functions to draw the attention of hinds, they are not consistent with the notion that these calls have an immediate impact on mate choice decisions by stimulating oestrous hinds to move towards male callers. Consequently, we suggest that intersexual selection through female mate choice is unlikely to be a major factor driving the evolution of male red deer harsh roars