An official website of the United States government
Abstract Previous work suggests that auditory–vestibular interactions, which emerge during bodily movement to music, can influence the perception of musical rhythm. In a seminal study on the ontogeny of musical rhythm, Phillips‐Silver and Trainor (2005) found that bouncing infants to an unaccented rhythm influenced infants’ perceptual preferences for accented rhythms that matched the rate of bouncing. In the current study, we ask whether nascent, diffuse coupling between auditory and motor systems is sufficient to bootstrap short‐term Hebbian plasticity in the auditory system and explain infants’ preferences for accented rhythms thought to arise from auditory–vestibular interactions. First, we specify a nonlinear, dynamical system in which two oscillatory neural networks, representing developmentally nascent auditory and motor systems, interact through weak, non‐specific coupling. The auditory network was equipped with short‐term Hebbian plasticity, allowing the auditory network to tune its intrinsic resonant properties. Next, we simulate the effect of vestibular input (e.g., infant bouncing) on infants’ perceptual preferences for accented rhythms. We found that simultaneous auditory–vestibular training shaped the model's response to musical rhythm, enhancing vestibular‐related frequencies in auditory‐network activity. Moreover, simultaneous auditory–vestibular training, relative to auditory‐ or vestibular‐only training, facilitated short‐term auditory plasticity in the model, producing stronger oscillator connections in the auditory network. Finally, when tested on a musical rhythm, models which received simultaneous auditory–vestibular training, but not models that received auditory‐ or vestibular‐only training, resonated strongly at frequencies related to their “bouncing,” a finding qualitatively similar to infants’ preferences for accented rhythms that matched the rate of infant bouncing.
more »
« less
"A Reasonable Life": Rhythmic Attunement and Sustainable Work at the Intersection of Farming and Knowledge Work
Past CSCW work has examined the role of temporal rhythms in cooperative work and has identified alignment work--the work required to bring dissonant rhythms into alignment--as an important aspect of large-scale collaboration. We ask instead how individual workers interact with temporal rhythms to sustain the conditions that make their work possible--not aligning rhythms, but attuning them. This paper draws on interviews with farmer-knowledge workers, people who engage with both farm work (the work of growing food or raising animals for food, on a commercial or non-commercial basis) and computer-based knowledge work. We identify three ways that farmer-knowledge workers interact with natural and structural rhythms to construct sustainable work-lives: anchoring (tying oneself to a particular rhythm to create accountability and structure), decoupling (loosening or cutting ties with a rhythm to create flexibility), and gap-filling (interweaving complementary rhythms to create balance). Together, these practices constitute attunement work.
more »
« less
- PAR ID:
- 10391167
- Date Published:
- Journal Name:
- Proceedings of the ACM on Human-Computer Interaction
- Volume:
- 6
- Issue:
- CSCW2
- ISSN:
- 2573-0142
- Page Range / eLocation ID:
- 1 to 22
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
null (Ed.)Flexible, contingent, or 'agile,' working arrangements provide workers with greater autonomy over when, where, or how to fulfill their responsibilities. In search of increased productivity and reduced absenteeism, organizations have increasingly turned to flexible work arrangements. Although access to flexible work arrangements is more prevalent among high-skilled workers, in the form of flextime or co-working, the past decade has also witnessed growth of independent contractors, digital nomadism, digitally enabled crowdwork, online freelancing, and on-demand platform labor. Flexible work arrangements reduce commutes and can enable workers with care-responsibilities to stay in the workforce. Younger workers also see flexibility as a top priority when considering career opportunities. Flexible working arrangements can also be mutually beneficial, enabling organizations to scale dynamically. Specific skill sets can be immediately accessed by turning to freelancers to fill organizational gaps. A growing number of organizations and workers rely on short-term and project-based relationships, using online platforms such as Upwork or Fiverr to connect. However, flexible work arrangements often come entwined with precarity cloaked in emancipatory narratives. Fixed salaries and benefits have given way to hourly rates and quantified ratings. Flexible workers often face unpredictability and uncertainty as they carry more risk and responsibility, and are burdened with a great portion of administrative costs (that is, overhead) associated with organizational support systems. Flexible workers at Google, for instance, outnumber full time workers but face far more unpredictability. Current formulations consider organizations as relatively fixed 'containers', which encapsulate the work performed and the information and communications technology (ICT) systems used to perform it.12 However, flexible work arrangements take place outside of organizational containers. In this new sociotechnical dynamic, flexible workers interact with a diversity of digital tools that defy centralized, top-down standardization or governance. We capture this diversity of digital tools through the concept of Personal Digital Infrastructures (PDIs), which denote an individualized assemblage of tools and technologies, such as personal laptops, smartphones, cloud services, and applications brought together by workers to perform their work tasks. Yet, flexible workers constantly reconfigure their PDIs as the technology landscape, client-relationship, and task requirements shift. For flexible work arrangements to be mutually beneficial, PDI integration in ICT systems for work is increasingly necessary, beyond a narrow focus on enterprise systems supporting standard work. Our collective research on flexible work arrangements indicates that PDIs present non-trivial challenges, but a more effective design of ICT systems for work can facilitate the integration of these bottom-up infrastructures. The nuanced understanding of PDIs presented here highlights their interplay with flexible work arrangements across key dimensions (spatial, temporal, organizational, and technological) and suggests key priorities for technology and platform developers.more » « less
-
If the entanglements of real estate and finance capital are pivotal in ongoing urban transformations in cities of the global south, then a less visible but equally vital dimension is the process of land assembly on which residential and commercial real estate speculation and development are premised. This paper pries open the value chain of land assembly that underlies these transformations in a rapidly expanding peri-urban frontier of Bengaluru, India. Drawing on detailed interviews with land market intermediaries, operating across different scales, who were instrumental in assembling agricultural land for a large apartment complex, the paper shows how existing forms of social power and local knowledge are harnessed to create inter-scalar linkages that enable the creation and extraction of value in Indian real estate. It makes the case for understanding the economic and cultural work of intermediaries in animating land's value chain as ‘articulation work’. Finally, the paper assesses the varying forms and quantum of value that are generated and captured by different actors in the value chain, which stretches from the landowning farmer up to a major real estate company, to reflect on the micro-dynamics of speculative urbanism and agrarian urbanization.more » « less
-
Abstract Rhythm perception depends on the ability to predict the onset of rhythmic events. Previous studies indicate beta band modulation is involved in predicting the onset of auditory rhythmic events (Fujioka et al., 2009, 2012; Snyder & Large, 2005). We sought to determine if similar processes are recruited for prediction of visual rhythms by investigating whether beta band activity plays a role in a modality‐dependent manner for rhythm perception. We looked at electroencephalography time–frequency neural correlates of prediction using an omission paradigm with auditory and visual rhythms. By using omissions, we can separate out predictive timing activity from stimulus‐driven activity. We hypothesized that there would be modality‐independent markers of rhythm prediction in induced beta band oscillatory activity, and our results support this hypothesis. We find induced and evoked predictive timing in both auditory and visual modalities. Additionally, we performed an exploratory‐independent components‐based spatial clustering analysis, and describe all resulting clusters. This analysis reveals that there may be overlapping networks of predictive beta activity based on common activation in the parietal and right frontal regions, auditory‐specific predictive beta in bilateral sensorimotor regions, and visually specific predictive beta in midline central, and bilateral temporal/parietal regions. This analysis also shows evoked predictive beta activity in the left sensorimotor region specific to auditory rhythms and implicates modality‐dependent networks for auditory and visual rhythm perception.more » « less
-
This paper presents a computational framework for modeling biobehavioral rhythms - the repeating cycles of physiological, psychological, social, and environmental events - from mobile and wearable data streams. The framework incorporates four main components: mobile data processing, rhythm discovery, rhythm modeling, and machine learning. We evaluate the framework with two case studies using datasets of smartphone, Fitbit, and OURA smart ring to evaluate the framework’s ability to (1) detect cyclic biobehavior, (2) model commonality and differences in rhythms of human participants in the sample datasets, and (3) predict their health and readiness status using models of biobehavioral rhythms. Our evaluation demonstrates the framework’s ability to generate new knowledge and findings through rigorous micro- and macro-level modeling of human rhythms from mobile and wearable data streams collected in the wild and using them to assess and predict different life and health outcomes.more » « less
- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1145/3555577
