Voice-activated, conversational artificial intelligence (AI) agents must provide clear explanations for their suggestions, or older adults aren’t likely to trust them.

That’s one of the main findings from a study by AI Caring on what older adults expect from explainable AI (XAI).

AI Caring is one of three AI Institutions led by Georgia Tech and funded by the National Science Foundation (NSF). The institution supports AI research that benefits older adults and their caregivers.

Niharika Mathur, a Ph.D. candidate in the School of Interactive Computing, was the lead author of a paper based on the study. The paper will be presented in April at the 2026 ACM Conference on Human Factors in Computing Systems (CHI) in Barcelona.

Mathur worked with the Cognitive Empowerment Program at Emory University to interview 23 older adults who live alone and use voice-activated AI assistants like Amazon’s Alexa and Google Home.

Many of them told her they feel excluded from the design of these products.

“The assumption is that all people want interactions the same way and across all kinds of situations, but that isn’t true,” Mathur said. “How older people use AI and what they want from it are different from what younger people prefer.”

One example she gave is that young people tend to be informal when talking with AI. Older people, on the other hand, talk to the agent like they would a person.

“If Older adults are talking to their family members about Alexa, they usually refer to Alexa as ‘she’ instead of ‘it,’” Mathur said. “They tend to humanize these systems a lot more than young people.”

Good Explanations

The study evaluated AI explanations that drew information from four sources of data:

• User history (past conversations with the agent)
• Environmental data (indoor temperature or the weather forecast)
• Activity data (how much time a user spends in different areas of the home)
• Internal reasoning (mathematical probabilities and likely outcomes)

Mathur said older users trust the agent more when it bases its explanations on data from the first three sources. However, internal reasoning creates skepticism.

Internal reasoning means the AI doesn’t have enough data from the other sources to give an explanation. It provides a percentage to reflect its confidence based on what it knows.

“The overwhelming response was negative toward confidence scores,” Mathur said. “If the AI says it’s 92% confident, older adults want to know what that’s based on.”

This is another example that Mathur said points to generational preferences.

“There’s a lot of explainable AI research that shows younger people like to see numbers in explanations, and they also tend to rely too much on explanations that contain numerical confidence. Older adults are the opposite. It makes them trust it less.”

Knowing the Context

Mathur said that AI agents interacting with older adults should serve a dual purpose. They should provide users with companionship and support independence while reducing the caretaking burden often placed on family members. 

Some studies have shown that engineers have tended to favor caretakers in the design of these tools. They prioritize daily tasks and routines, leaving some older adults to feel like they are merely a box to be checked.

She discovered that in urgent situations, older users prefer the AI to be straightforward, while in casual settings, they desire more conversation.

“How people interact with technological systems is grounded in what the stakes of the situation are,” she said. “If it had anything to do with their immediate sense of safety, they did not want conversational elaboration. They want the AI to be very direct and factual.”

Not Just Checking Boxes

Mathur said AI agents that interact with older adults are ideally constructed with a dual purpose. They should provide companionship and autonomy for the users while alleviating the burden of caretaking that is often placed on their family members. 

Some studies have shown that engineers have strayed toward favoring caretakers in the design of these tools. They prioritize daily tasks and routines, leaving some older adults to feel like they are a box to be checked.

“They’re not being thought of as consumers,” Mathur said. “A lot of products are being made for them but not with them.”

She also said psychological well-being is one of the most important outcomes these tools should produce. 

Showing older adults that they are listened to can significantly help in gaining their trust. Some interviewees told Mathur they want agents who are deliberate about understanding their preferences and don’t dismiss their questions.

Meeting these needs reduces the likelihood of protesting and creating conflict with family members.

“It highlights just how important well-designed explanations are,” she said. “We must go beyond a transparency checklist.”

Women in need of supportive maternal and menstrual healthcare in patriarchal societies have increasingly found outlets for disclosure in online communities.

That support, however, begins to disappear in these restrictive cultures once women reach menopause, according to new research from Georgia Tech

Naveena Karusala, an assistant professor in Georgia Tech’s School of Interactive Computing, and master’s student Umme Ammara are working toward improving existing technologies and designing new ones for a demographic they believe has been neglected.

Karusala and Ammara co-authored a paper based on a study they conducted with women in urban Pakistan experiencing menopause.

“Women’s health is understudied in general, but menopause is more neglected than other women’s health issues,” Karusala said. “Our choice to focus on menopause is motivated by expanding how we holistically think about women’s well-being across their lifespan.”

Karusala and Ammara will present their paper in April at the 2026 ACM Conference on Human Factors in Computing Systems (CHI) in Barcelona.

Masking Symptoms

Menopause is diagnosed after 12 consecutive months without a period, vaginal bleeding, or spotting. The transition to menopause, called perimenopause, usually happens over two to eight years.

Hormone changes may cause symptoms such as irregular periods, vaginal dryness, hot flashes, night sweats, trouble sleeping, mood swings, and brain fog.

These symptoms can be debilitating in some cases and affect daily life. However, Ammara said women are pressured to remain silent, maintain appearances, and regulate their emotions to meet social expectations.

“Understanding menopause is important because a woman would be experiencing all these symptoms, and people will not understand those as actual symptoms,” Ammara said. “There’s been resistance to the idea of the medicalization of menopause. People don’t view it as an illness, but as a life transition and something that happens naturally.”

Feeling Isolated

The women interviewed by Karusala and Ammara either stayed at home full-time or were part of the workforce.

The researchers discovered that trusted family members might be the only sources women who stay at home and do not work turn to for disclosure. 

“Women at home have the flexibility to take breaks or work at their own pace, so a lot of their experience is shaped by the emotional barriers they face,” Ammara said. 

“That could come from their husbands and family members. Some are supportive and some are not. They might weaponize it and use that term against them, or they might dismiss what they’re going through.”

Ammara said it might be easier for women in the workforce to confide in their coworkers, but explaining to an employer that they need sick leave for menopause symptoms can be intimidating.

Even in online communities that have enabled women to anonymously share their health experiences, menopause is seldom discussed.

Raising Awareness

Karusala and Ammara argue in their paper that a public health approach could be the most effective way to spark conversation about menopause in a patriarchal culture in which technology use varies.

They said the challenge in implementing technologies geared toward menopause support is that the condition isn’t well understood in public. Improving maternal health, for example, is easier to promote within these societies because of the general understanding that motherhood is important.

“There must be an existing infrastructure to build on,” Karusala said. “For example, menstrual and maternal health are taught in schools and regularly discussed in primary care. Cultural and social meaning and importance are placed on motherhood.

“A lot of that doesn’t exist for menopause. Primary care doctors are unprepared to talk about menopause compared to other health issues.”

Design Solutions

Ammara said that the most effective way for technologies to make an impact on women going through menopause is to directly address systemic power structures around women’s health within Pakistani culture.

It can start with the husbands. 

“Framing the issue for husbands to understand menopause should be at the forefront of designing technology solutions,” she said. 

“In Islamic contexts, we suggest using faith-based framings. This has been proposed for maternal health in prior works that draw on Islamic principles to engage expectant fathers in providing care and support. Framing it around religious responsibility to involve men in the journey can also be done for menopause.”

Crystal Hanson is a quiet but powerful force within the Georgia Institute of Technology — an individual whose influence has shaped programs, strengthened communities, and supported leaders across campus. Her career reflects the profound impact a dedicated staff member can have on an institution, not only through operational excellence but through relationships, mentorship, and an unwavering commitment to service.

A Career Built on Service and Adaptability

Hanson’s journey in higher education began immediately after high school when she joined Purdue University and discovered her passion for supporting students, faculty, and academic communities. She carried that passion across multiple institutions before landing at Tech, building a career grounded in adaptability, resilience, and people-centered service.

Her Georgia Tech chapter began in the School of Civil and Environmental Engineering (CEE), where she supported the Water Resources Engineering group. There, she became a trusted resource for students and faculty alike — a steady presence who celebrated their successes, listened during challenges, and helped build a sense of community. 

Hanson credits Lisa Tuttle in CEE with helping her navigate the Georgia Tech landscape. With Tuttle’s help, she also discovered a talent for event planning and administrative leadership, eventually serving as administration manager and supporting the CEE chair with meetings, alumni engagement, and major departmental initiatives. One of her most memorable experiences was coordinating a trip to NATO headquarters in Belgium, an opportunity that deepened her appreciation for global collaboration and institutional history.

“Crystal was an extraordinary contributor throughout her time in CEE, first in the Water Resources Engineering group and later as the trusted manager of the entire administrative support team,” said Donald Webster, Karen and John Huff School Chair in CEE. “In every role, she brought dedication, professionalism, and genuine care for others. Crystal consistently went above and beyond to support the people of CEE — not only through professional challenges, but also during moments of personal crisis — always with compassion, steadiness, and grace. Her presence made our community stronger, more resilient, and more humane.”

A Trusted Partner in Research Leadership

Hanson later transitioned to the Executive Vice President for Research (EVPR) office, where she worked under leaders including Stephen Cross, Christopher Jones, Giselle Bennett, Raheem Beyah, and Julia Kubanek. Her time in this environment was formative. She absorbed the complexities of research administration, budgeting, and strategic planning, all while contributing to a culture where staff felt valued and included.

“When I joined the EVPR office, and it had only three or four people, it seemed everyone was doing two or three jobs,” said Christopher Jones, who joined the office in 2013 and is now the John F. Brock III School Chair in the School of Chemical and Biomolecular Engineering. “Crystal was an immediate fit, bringing with her organizational and management skills, a sense of humor, and an appreciation of our mission.  She is someone whom I always look forward to seeing, both then and now.”

After Beyah left the EVPR office to become the dean and Southern Company Chair in the College of Engineering, Kubanek became the new vice president for Interdisciplinary Research (VPIR). Together, Kubanek and Hanson built and expanded the VPIR team, helping to shape its operations and identity.

Among her many contributions, Hanson initiated the Interdisciplinary Research Spotlight Awards, recognizing staff and research faculty who go above and beyond in the Interdisciplinary Research Institutes (IRIs). She also shepherded the Research Faculty Teaching Fellows program, ensuring that research faculty across Georgia Tech and the Georgia Tech Research Institute had opportunities to develop teaching skills in partnership with the Center for Teaching and Learning.

The Connector at the Heart of the VPIR Office

Crystal describes herself as someone who prefers to work behind the scenes: cleaning up after events, coordinating logistics, and taking on nearly any task that needs to be done. 

“Crystal is the ultimate behind-the-scenes master organizer and people connector,” said Kubanek. “She develops individual relationships that enable her to organize, in short order, a meeting of numerous campus leaders whose calendars should be impossible to align. She comes bearing snacks and a smile and is the heart of our operation.”

Hanson’s deep institutional knowledge and extensive network positioned her to navigate Georgia Tech’s complex landscape. She serves as a bridge between the VPIR office, the IRIs, GTRI, and campus partners, ensuring that communication flows smoothly and people feel supported, informed, and connected.

“Her deep institutional knowledge and strong networks across campus meant she almost always knew the right person to connect with or the best way to move something forward,” said Punya Mardhanan, a former colleague in VPIR and now assistant director of business operations for the Space Research Institute. “Crystal works incredibly efficiently and often completes things before anyone asks. She never seeks recognition for the many ways she supports her team.”

A Colleague, Advisor, and Steady Source of Wisdom

Hanson’s colleagues consistently describe her as someone who not only gets things done but also makes everyone around her better.

“She’s like a mother hen to the VPIR team,” said Rob Kadel, executive director of research program administration. “I can always go to Crystal and say, ‘Who should I talk to about this?’ and she will know exactly who to talk to. She is never afraid to speak her mind. She’s a trusted advisor.”

Her leadership has also extended beyond formal responsibilities. She played a key role in designing the VPIR workspace during renovations, coordinated team retreats and bonding activities, and infused every gathering with energy and warmth.

“She cares so much about the Georgia Tech community,” said Colly Mitchell, director of events and engagement for the Parker H. Petit Institute for Bioengineering and Bioscience. “Crystal is incredibly responsive, helpful, and friendly. She brings a big burst of energy to every gathering.”

“Words that immediately come to mind when I think of Crystal are collaborative, dependable, responsive, and a true breadth of knowledge,” adds Cynthia Moore, director of operations for the Institute for People and Technology, who worked alongside Hanson for nearly a decade. “Crystal will truly be missed, along with her knowledge of all things Georgia Tech and research.”

A Legacy of Generosity and Excellence

After nearly 14 years at Georgia Tech, Hanson will retire on April 1. She will be remembered as someone who connected people, solved problems, and always went above and beyond. 

According to Raheem Beyah, provost and executive vice president for Academic Affairs, “Crystal was simply exceptional. She was a creative thought partner who provided outstanding support and strategic advice, and she became a dear friend. I am a better leader after working with Crystal, and Georgia Tech is a better place because of her. I can’t think of many people who deserve a wonderful retirement more than she does.”

Hanson looks forward to spending more time with her family, including her two daughters and two granddaughters, whose busy schedules she is eager to be part of. She and her husband have plans for travel, concerts — including those of her son-in-law’s band, Grouplove — and perhaps even a cruise around the world.

Georgia Tech extends its deepest gratitude to Crystal Hanson for her years of exceptional service, leadership, and dedication. Her impact will continue to resonate across the VPIR office, the IRIs, and the broader research community.

We wish her joy, adventure, and well-deserved rest in the next chapter of her life.

Pregnant women often worry about their babies’ health in between doctor’s visits, but a new mobile app can help put them at ease.

Studies show that one in five pregnant women experience perinatal anxiety, which is characterized by intense negative thoughts about their pregnancy.

Those women will soon be able to conduct an ultrasound and receive an accurate fetal heart rate from their mobile phones.

DopFone uses smartphone speakers to emit a low-pitched ultrasound that detects reflected signals of abdominal surface vibrations caused by fetal cardiac activity.

Alex Adams, an assistant professor in Georgia Tech’s School of Interactive Computing and faculty member in the Institute for People and Technology, said he came up with the idea for DopFone as he and his wife, Elise, suffered through two miscarriages. Elise couldn’t reliably measure the fetal heart rate with a commodity fetal Doppler heart rate monitor.

Those experiences exposed some gaps in the maternal healthcare process.

“There are a lot of great devices in hospitals and clinics, but there’s not much outside of those venues, even for high-risk pregnancies,” Adams said. “This is about filling the gaps between checkups.”

Poojita Garg joined Adams to work on DopFone while completing her master’s at Georgia Tech. She is now pursuing her Ph.D. at the University of Washington and is co-advised by Professor Shwetak Patel, who earned his Ph.D. from Georgia Tech in 2008.

Garg is working with the University of Washington School of Medicine to conduct DopFone’s first clinical trials.

Garg tested DopFone on 23 patients and achieved a plus-minus of 4.9 beats per minute, well within the clinical standard for reliable fetal heart rate measurement of plus-minus 8 beats per minute.

Adams said it measured within plus minus 2 beats per minute in most cases with an error rate of less than 1 percent.

About 1 million pregnancies in the U.S. end in miscarriage, according to a study from the Yale School of Medicine, and doctors know little about what causes them. Adams said that number is probably higher because many go unreported.

Adams and Garg said it’s unclear whether the innovation could reduce the number of miscarriages. However, consistent fetal heart rate data collection outside of the doctor’s office could provide a better idea of what happens leading up to a miscarriage.

“From there, we can take preventative action,” Adams said. “If nothing else, we can give a sense of comfort to those who may be worried.”

Expanding Access

While couples can purchase portable fetal heart rate monitors, Adams and Garg see DopFone as a low-cost alternative for those who live in areas with poor or inaccessible healthcare systems. 

“There’s a lot of potential for using it in what doctors like to call maternity deserts,” Garg said. “These are areas where a pregnant person, at the time of delivery, would have to travel long distances to reach a hospital. This technology will be useful globally in underdeveloped areas of the world.”

The researchers also said external add-ons and attachments aren’t included in their design goals. They prefer to use what’s built into the phone to keep the technology accessible.

“The real value is that 96% of America already has the technology in their pocket, along with 60% of the world’s population,” Adams said. “Half of the battle is having the right tools. The more we can get form what’s already in the phone, the more we can guarantee people have access to it.”

Not a Substitute

Some patients may feel a constant need to check the heart rate, and Garg acknowledged a tool like DopFone could increase that anxiety. She and Adams said a future version of the app will tell the parent if the heart rate is within a healthy range.

“There’s a lot of tradeoffs between a tool that could provide reassurance or create anxiety,” she said. “We want the use of this tool to be recommended by a doctor and for doctors and their care teams to be kept in the loop.”

She also said DopFone is not meant to replace anything that is done in a clinic.

“There are devices that make the whole process possible at home, but this is something that should be done in a clinic, so that’s the line we want to draw,” she said.

Georgia Tech doctoral student Charles Nimo has been selected as the newest recipient of the Roland Ewubare Fellowship in Societal Engagement and Impact, a philanthropic program supporting underrepresented graduate students whose research advances community focused, socially relevant scholarship.

Funded by Roland Ewubare, a distinguished Nigerian lawyer and corporate executive, the fellowship recognizes emerging scholars whose master’s or doctoral work meaningfully connects with societal engagement and impact. 

The program expands opportunities for graduate researchers committed to addressing real world challenges through innovative, community centered inquiry.

Nimo is a third year Ph.D. student in computer science and a graduate research assistant in the Technologies and International Development Lab led by Michael L. Best, executive director of the Institute for People and Technology and professor in both the Sam Nunn School of International Affairs and the School of Interactive Computing. He is co-advised by Irfan Essa, professor in the School of Interactive Computing.

Nimo’s research explores human centered natural language processing for healthcare, as well as multilingual AI systems in low resource contexts. Nimo develops tools to evaluate and improve the safety, robustness, and global inclusion of language technologies. His broader goal is to build AI systems that are fair, reliable, and effective across diverse languages and cultures, helping ensure that technological advances benefit communities often overlooked in mainstream AI development.

“I’m very grateful to receive this fellowship for societal impact,” Nimo said. “Thank you for this support and believing in the work, and I’m excited to keep building research that translates into real world benefit.”

Nimo earned his B.S. in electrical and computer engineering from Virginia Commonwealth University in Richmond, Virginia, and his M.S. in computer science from the University of Texas at Austin.