Automatic Task Assistance for People with Cognitive Disabilities in Brushing Teeth - A User Study with the TEBRA System

Computer vision in autism spectrum disorder research: a systematic review of published studies from 2009 to 2019

The current state of computer vision methods applied to autism spectrum disorder (ASD) research has not been well established. Increasing evidence suggests that computer vision techniques have a strong impact on autism research. The primary objective of this systematic review is to examine how computer vision analysis has been useful in ASD diagnosis, therapy and autism research in general. A systematic review of publications indexed on PubMed, IEEE Xplore and ACM Digital Library was conducted from 2009 to 2019. Search terms included ['autis*' AND ('computer vision' OR 'behavio* imaging' OR 'behavio* analysis' OR 'affective computing')]. Results are reported according to PRISMA statement. A total of 94 studies are included in the analysis. Eligible papers are categorised based on the potential biological/behavioural markers quantified in each study. Then, different computer vision approaches that were employed in the included papers are described. Different publicly available datasets are also reviewed in order to rapidly familiarise researchers with datasets applicable to their field and to accelerate both new behavioural and technological work on autism research. Finally, future research directions are outlined. The findings in this review suggest that computer vision analysis is useful for the quantification of behavioural/biological markers which can further lead to a more objective analysis in autism research.

How Can Autonomy Be Maintained and Informal Care Improved for People With Dementia Living in Residential Care Facilities: A Systematic Literature Review

Background and Objectives

For people with dementia living in residential care facilities, maintaining autonomy and receiving informal care are important. The objective of this review is to understand how caregiving approaches and physical environment, including technologies contribute to the maintenance of autonomy and informal care provision for this population.

Research Design and Methods

A literature review of peer-reviewed articles published between January 1995 and July 2017 was performed. Realist logic of analysis was used, involving context, mechanism and outcome configurations.

Results

Forty-nine articles were included. The improvement of the relationship between residents and formal/informal caregivers is important. This increases the knowledge (sharing) about the resident and contributes to their autonomy. A social, flexible, and welcoming attitude of the formal caregiver improves the provision of informal care. Specially designed spaces, for instance, therapeutic gardens, create activities for residents that remind them of themselves and contribute to their autonomy. Use of technologies reduces caregiver’s time for primary tasks and therefore enables secondary tasks such as interaction with the residents.

Discussion and Implications

The results revealed how residential care facilities could maintain autonomy of their residents and improve informal care delivery using caregiving approaches and the physical environment including technologies. The results are supporting toward each other in maintaining autonomy and also helped in enhancing informal care provision. For residential care facilities that want to maintain the autonomy of their residents and improve informal care delivery, it is important to pay attention to all aspects of living in a residential care facility.

The feasibility of an automatic prompting system in assisting people with traumatic brain injury in cooking tasks

Purpose: Individuals with traumatic brain injury (TBI) often experience difficulties in performing kitchen-related sequencing tasks due to cognitive deficits. The primary aim of this study is to examine the feasibility of a context-aware automatic prompting system in assisting individuals with TBI in multi-step cooking tasks.Method: Sixteen individuals with TBI participated in the study. A randomized cross-over design was used to compare the automatic prompting method with a conventional user-controlled method through a tablet device. Participant performance under each prompting method was assessed using the Performance Assessment of Self-Care Skills in terms of independence, safety, and adequacy. Subjective workload and qualitative feedback were also collected.Results: The automatic method, when compared with the user-controlled method, significantly decreased the amount of external assistance required by participants, received higher ratings in user perceived ease-of-use, and was considered less stressful for participants. However, the user-controlled method showed strengths in offering participants more flexibility in terms of controlling on the timing of prompts.Conclusions: The results provided insight into the potential benefits and user perceptions of a context-aware prompting system. The information could contribute to the future development of advanced prompting technology for people with cognitive impairments in completing sequential tasks.Implications for RehabilitationFor people with traumatic brain injury, the context-aware prompting method showed advantages in improving user performance, receiving better ratings on ease-of-use, and decreasing stress levels, compared to the user-controlled prompting method in completing multi-step cooking tasks.Future prompting systems for people with cognitive impairments may allow users to control the pace of prompting and use sensing information as back-up assistance in critical situations. In this way, the system may help users monitor their actions and offer confirmations, especially at steps with safety concerns, thus enhancing the sense of security and reducing the stress from self-monitoring.

Efficacy of a Micro-Prompting Technology in Reducing Support Needed by People With Severe Acquired Brain Injury in Activities of Daily Living: A Randomized Control Trial

OBJECTIVE

To evaluate the effectiveness of an automated interactive prompting technology in supporting the morning routine of persons with acquired brain injury. The morning routine included maintaining personal hygiene and dressing.

SETTING

An inpatient neurorehabilitation hospital.

PARTICIPANTS

Persons with acquired brain injury who required prompting when following their morning routine (n = 24), but were not limited by physical disability or dysphasia, took part in the study. Participants (67% with traumatic brain injury) had impairment on indices of memory and executive function.

DESIGN

A randomized control trial evaluated the effect of an automated interactive micro-prompting device on the number of prompts by trained staff required for successful completion of the morning routine.

MAIN MEASURES

Study-specific checklists assessed sequence performance, errors, and verbal prompts required over baseline, rehabilitation as usual, intervention, and return to baseline conditions.

RESULTS

The intervention significantly reduced the support required to complete the task compared with usual rehabilitation.

CONCLUSIONS

Micro-prompting technology is an effective assistive technology for cognition, which reduces support needs in people with significant cognitive impairments.

[Networks involved in motor cognition : Physiology and pathophysiology of apraxia]

Apraxia is an umbrella term for different disorders of higher motor abilities that are not explained by elementary sensorimotor deficits (e. g. paresis or ataxia). Characteristic features of apraxia that are easy to recognize in clinical practice are difficulties in pantomimed or actual use of tools as well as in imitation of meaningless gestures. Apraxia is bilateral, explaining the cognitive motor disorders and occurs frequently (but not exclusively) after left hemispheric lesions, as well as in neurodegenerative diseases, such as corticobasal syndrome and Alzheimer's disease. Apraxic deficits can seriously impair activities of daily living, which is why the appropriate diagnosis is of great relevance. At the functional anatomical level, different cognitive motor skills rely on at least partly different brain networks, namely, a ventral processing pathway for semantic components, such as tool-action associations, a ventro-dorsal pathway for sensorimotor representations of learnt motor acts, as well as a dorso-dorsal pathway for on-line motor control and, probably, imitation of meaningless gestures. While these networks partially overlap with language-relevant regions, more clear cut dissociations are found between apraxia deficits and disorders of spatial attention. In addition to behavioral interventions, noninvasive neuromodulation approaches, as well as human-computer interface assistance systems are a growing focus of interest for the treatment of apraxia.