Moving In Out and Around the Home: Solutions from Older Adults with Long-term Mobility Impairment

Presented at the 2015 annual conference of Rehabilitative Engineering and Assistive Technology Society of North America (RESNA) in Denver, CO.The purpose of this study was to explore how older adults aging with long-term mobility impairment have adapted to mobility challenges in the home. Through in-home interviews, participants discussed their experience moving in, out and around their home with regard to challenges, solutions, barriers, and changes with age. This paper provides a characterization of the solutions used by participants to overcome in-home mobility challenges as well as unresolved barriers they faced. These themes illustrate the ingenuity of the participants as well as opportunities to support aging in place via design to better match a person’s environment to his/her capabilities

On processing line graphs: understanding aging and the role of spatial and verbal resources

The objective of this research is to explore high-speed analog-to-digital converters (ADCs) using silicon-germanium (SiGe) heterojunction bipolar transistors (HBTs) for wireless digital receiver applications. The stringent requirements of ADCs for the high-performance next-generation wireless digital receiver include (1) low power, (2) low cost, (3) wide input signal bandwidth, (4) high sampling rate, and (5) medium to high resolution. The proposed research achieves the objective by implementing high-performance ADC's key building blocks and integrating these building blocks into a complete sigma-delta analog-to-digital modulator that satisfies the demanding specifications of next-generation wireless digital receiver applications. The scope of this research is divided into two main parts: (1) high-performance key building blocks of the ADC, and (2) high-speed sigma-delta analog-to-digital modulator. The research on ADC's building blocks includes the design of two high-speed track-and-hold amplifiers (THA) and two wide-bandwidth comparators operating at the sampling rate > 10 GS/sec with satisfying resolution. The research on high-speed sigma-delta analog-to-digital modulator includes the design and experimental characterization of a high-speed second-order low-pass sigma-delta modulator, which can operate with a sampling rate up to 20 GS/sec and with a medium resolution. The research is envisioned to demonstrate that the SiGe HBT technology is an ideal platform for the design of high-speed ADCs.M.S.Committee Chair: Rogers, Wendy; Committee Member: Fisk, Arthur; Committee Member: Walker, Bruc

Comprehension of health risk probabilities: the roles of age, numeracy, format, and mental representation

Probabilities, an essential dimension of risk communication, can be presented in various formats including frequencies (e.g., 1 in 10), percentages (e.g., 10%), or verbal phrases (e.g., unlikely); the literature is mixed concerning which format best supports comprehension. Additionally, it is not well understood how people who vary in their level of numeracy understand those probabilities. The goal of the present three-phase within-participant study was to understand how the factors of format and numeracy influence comprehension and mental representations of probabilities for younger and older adults. Overall, the results of this research clearly indicated that comprehension and mental representation of health risk probabilities are influenced by format, age, and numeracy. To best support comprehension and comparison of health risk probabilities for younger adults and healthy older adults with varying numeracy, percent format should be used.PhDCommittee Chair: Rogers, Wendy; Committee Member: Durso, Frank; Committee Member: Echt, Katharina; Committee Member: Fischer, Ute; Committee Member: Walker, Bruc

Understanding the Potential for Robot Assistance for Older Adults in the Home Environment

This research was supported in part by a grant from the National Institutes of Health (National Institute on Aging) Grant P01 AG17211 under the auspices of the Center for Research and Education on Aging and Technology Enhancement (CREATE; www.create-center.org). The report was inspired by our collaboration with Willow Garage (www.willowgarage.com) who selected the Georgia Institute of Technology as a beta PR2 site for research (www.willowgarage.com/blog/2010/06/07/spotlight-georgia-tech). This project is a collaborative research effort on human-robot interaction between the Human Factors and Aging Laboratory (Co-Directors Wendy A. Rogers and Arthur D. Fisk; www.hfaging.org) and the Healthcare Robotics Laboratory (Director: Charles C. Kemp; www.healthcare-robotics.com). Many thanks to the researchers in both laboratories for their contributions

Univariate and Multivariate Analysis of Variance: A Primer

This item removed from SMARTech at the request of the author

Older Adults' Training Preferences for Learning to Use Technology

Older adults may benefit from using technology in their everyday lives. However, adults over 65 may need more training than their younger counterparts given they have had less experience with technology. In this study, 113 adults between the ages of 65 and 85 participated in focus group interviews discussing their training needs and preferences for technology items used in the home. Participants expressed an interest in receiving additional training, particularly for specific tasks. Participants also discussed preferences for various characteristics of training, such as who should conduct the training and for their preferred method of training. One of the most frequently discussed preferences was for self-training using text materials, such as a manual

Older adults' training preferences for learning to use technology

Older adults may benefit from using technology in their everyday lives. However, adults over 65 may need more training than their younger counterparts given they have had less experience with technology. In this study, 113 adults between the ages of 65 and 85 participated in focus group interviews discussing their training needs and preferences for technology items used in the home. Participants expressed an interest in receiving additional training, particularly for specific tasks. Participants also discussed preferences for various characteristics of training, such as who should conduct the training and for their preferred method of training. One of the most frequently discussed preferences was for self-training using text materials, such as a manual