CameraEEG: Synchronized Recording of Video with Electroencephalogram data on an Android Application

We present a novel android application named CameraEEG that enables synchronized acquisition of Electroencephalogram(EEG) and camera data using a smartphone. Audio-visual events of interest experienced by the subject were also recorded using a button press on the CameraEEG app. Unlike lab-restricted experiments, which usually constrain the subject's mobility, this wearable solution enables monitoring of the human brain during everyday life activities. The app was built using Android SDK version 28 and Smarting mobi SDK from mbraintrain. It works on all android devices having a minimum Android OS - Lollipop. We successfully recorded thirty minutes of synchronized Video and EEG during eyes closed and walking tasks using the app. Event markers enabled by the subject using the app during walking tasks were also recorded. Timing tests showed that temporal synchronization of video and EEG data was good. We analysed the recorded data and were able to identify the task performed by the subject from the event markers. The power spectrum density of the two tasks showed different power spectrums with a peak in the alpha band for eyes closed task. We also provide android studio codes for download and detailed help documentation for the community to test the developed application.

Regular rhythmic and audio-visual stimulations enhance procedural learning of a perceptual-motor sequence in healthy adults: A pilot study

Procedural learning is essential for the effortless execution of many everyday life activities. However, little is known about the conditions influencing the acquisition of procedural skills. The literature suggests that sensory environment may influence the acquisition of perceptual-motor sequences, as tested by a Serial Reaction Time Task. In the current study, we investigated the effects of auditory stimulations on procedural learning of a visuo-motor sequence. Given that the literature shows that regular rhythmic auditory rhythm and multisensory stimulations improve motor speed, we expected to improve procedural learning (reaction times and errors) with repeated practice with auditory stimulations presented either simultaneously with visual stimulations or with a regular tempo, compared to control conditions (e.g., with irregular tempo). Our results suggest that both congruent audio-visual stimulations and regular rhythmic auditory stimulations promote procedural perceptual-motor learning. On the contrary, auditory stimulations with irregular or very quick tempo alter learning. We discuss how regular rhythmic multisensory stimulations may improve procedural learning with respect of a multisensory rhythmic integration process.

Dysfunctional Timing in Traumatic Brain Injury Patients: Co-occurrence of Cognitive, Motor, and Perceptual Deficits

Timing is an essential part of human cognition and of everyday life activities, such as walking or holding a conversation. Previous studies showed that traumatic brain injury (TBI) often affects cognitive functions such as processing speed and time-sensitive abilities, causing long-term sequelae as well as daily impairments. However, the existing evidence on timing capacities in TBI is mostly limited to perception and the processing of isolated intervals. It is therefore open whether the observed deficits extend to motor timing and to continuous dynamic tasks that more closely match daily life activities. The current study set out to answer these questions by assessing audio motor timing abilities and their relationship with cognitive functioning in a group of TBI patients (n = 15) and healthy matched controls. We employed a comprehensive set of tasks aiming at testing timing abilities across perception and production and from single intervals to continuous auditory sequences. In line with previous research, we report functional impairments in TBI patients concerning cognitive processing speed and perceptual timing. Critically, these deficits extended to motor timing: The ability to adjust to tempo changes in an auditory pacing sequence was impaired in TBI patients, and this motor timing deficit covaried with measures of processing speed. These findings confirm previous evidence on perceptual and cognitive timing deficits resulting from TBI and provide first evidence for comparable deficits in motor behavior. This suggests basic co-occurring perceptual and motor timing impairments that may factor into a wide range of daily activities. Our results thus place TBI into the wider range of pathologies with well-documented timing deficits (such as Parkinson’s disease) and encourage the search for novel timing-based therapeutic interventions (e.g., employing dynamic and/or musical stimuli) with high transfer potential to everyday life activities.

Evaluating Pedometer Algorithms on Semi-Regular and Unstructured Gaits

Pedometers are popular for counting steps as a daily measure of physical activity, however, errors as high as 96% have been reported in previous work. Many reasons for pedometer error have been studied, including walking speed, sensor position on the body and pedometer algorithm, demonstrating some differences in error. However, we hypothesize that the largest source of error may be due to differences in the regularity of gait during different activities. During some activities, gait tends to be regular and the repetitiveness of individual steps makes them easy to identify in an accelerometer signal. During other activities of everyday life, gait is frequently semi-regular or unstructured, which we hypothesize makes it difficult to identify and count individual steps. In this work, we test this hypothesis by evaluating the three most common types of pedometer algorithm on a new data set that varies the regularity of gait. A total of 30 participants were video recorded performing three different activities: walking a path (regular gait), conducting a within-building activity (semi-regular gait), and conducting a within-room activity (unstructured gait). Participants were instrumented with accelerometers on the wrist, hip and ankle. Collectively, 60,805 steps were manually annotated for ground truth using synchronized video. The main contribution of this paper is to evaluate pedometer algorithms when the consistency of gait changes to simulate everyday life activities other than exercise. In our study, we found that semi-regular and unstructured gaits resulted in 5–466% error. This demonstrates the need to evaluate pedometer algorithms on activities that vary the regularity of gait. Our dataset is publicly available with links provided in the introduction and Data Availability Statement.

Immigration as practice of organization: discussions about practices of organization, displacement, and integration of Haitian immigrants in the Goiânia Metropolitan Region, in Goiás, Brazil

This study aims to discuss the practices of displacement and organization that are part of the process of integrating Haitian immigrants in the countries that they live, in their diaspora process. Haiti is a country historically marked by displacement, which is observed since the colonial period, when people were forcibly displaced to be enslaved. This article will focus on the process of displacement, through the theoretical lens of Practice-Based Studies, using Michel de Certeau’s theory about social practices, associated with the concepts of Tim Cresswell about displacement and immigration as practice. The research was conducted between August and December 2017 in two Haitian communities in the Goiânia Metropolitan Region, in the state of Goiás, located in Central-West Brazil. For the production of empirical material, we used the techniques of life history interview and participant observation, by accompanying the everyday life activities in the immigrant’s communities. The results show that the practice of displacement of Haitian immigrants is an unfinished and still in process phenomenon, involving different dimensions of events, with international, national, and commuting displacement. It was also possible to conclude that the displacement practices are permeated by organizational practices and that “organizing” and “migrating” are processes involved. In addition, the practice of organization is a key component for integration and access to the workplace in Brazil. Therefore, immigration can be considered sets of practices to organize mobility experiences that are spatially multi-localized and incorporated.

Limit your body area -a COVID-19 mass radicalisation challenging autonomy and basic human rights

Purpose This paper aims to explore articulations of how individuals internalise official demands on handling COVID-19 and the function of social media in this process, and further to discuss this from a human rights’ perspective. Design/methodology/approach A thematic analysis of qualitative data from an international survey on COVID-19 and social media. The analysis was inspired by Berger and Luckmann's theory of reality as a social construction. Findings Articulations expressed an instant internalisation and externalisation of the officially defined “new normal”. However, negotiations of this “new normal” were articulated, whereby everyday life activities could proceed. Resistance to the “new normal” appeared, as routines and common sense understandings of everyday life were threatened. Health-care professionals were put in a paradoxical situation, living in accordance with the “new normal” outside work and legitimately deviating from it at work. The “new normal” calls for individuals’ “oughtonomy” rather than autonomy. Social media were used to push individual’s re-socialisation into the “new normal”. The latter both promoted and challenged human rights as the individual's right to self-determination extends beyond the self as it risks threatening other people's right to life. Originality/value With the means of a theoretically based thematic analysis inspired by Berger and Luckmann, the current study shows how articulations on COVID-19 and social media can both support and challenge human rights and reality as a facticity as dictated by dominant organisations and discourses in society.