The Rise of Digital Memory Aid Tech: Does It Really Help?

In an era where smartphones can remind us of nearly everything — such as appointments, birthdays, and grocery lists — using technology to enhance memory and our overall productivity seems intuitive.

But as digital memory aids, like AI-driven reminder apps and productivity trackers, become more sophisticated and more widely adopted, a key question remains: Do they actually help improve memory, or are they just a crutch, and could they harm our brains and overall well-being?

The memory tech boom

The market for memory-enhancing technology is booming. Voice assistants such as Siri, Alexa, and Google Assistant now serve as on-demand memory aids, helping users set reminders, retrieve information, and organize tasks with a simple command.

For people experiencing mild cognitive impairment or early-stage dementia, these tools promise increased independence. Caregivers, too, are turning to digital solutions like Medisafe (which reminds patients to take medications) or Sonde Health (which analyzes speech patterns for cognitive decline). Even AI-powered journaling apps claim to help users strengthen recall by automatically compiling daily activities and conversations.

Does outsourcing memory help or hurt?

Dr. Michael Scullin, professor of psychology and neuroscience at Baylor University, co-authored a meta-analysis which found that the use of digital technologies is associated with reduced risk of cognitive decline across the 411,430 adults in the studies.

“What we found in this meta analysis was that on average, there was a net positive outcome, meaning those who were using these devices were showing better cognitive functioning into the future,” Scullin said. “Ninety percent of the studies individually showed this effect, and the other 10 percent just showed unclear or ambiguous or null effects, but none of them were showing the reverse direction. This was surprising because there’s been so much dialogue about how these devices are rotting our brains.”

The study focused specifically on older adults, and while it didn’t observe the effects of frequent technology use on younger adults it opens the door to further research questions.

“We were studying a particular sample of mostly older adults who were digital pioneers. So that doesn’t necessarily address what happens if you give a tablet to a child and they’re on it 6 hours a day [or] teenagers who are on social media all throughout the night, not getting sleep,” Scullin said. “That’s a separate question. But amongst these older adults, the adoption of these technologies seems to be a good thing.”

Can learning new tech strengthen the brain?

The act of learning how to use technology, like tablets, can offer protective benefits from cognitive decline as well. Learning a new skill taps into the brain’s neuroplasticity, almost acting as a cognitive “workout.”

Scullin said that people often feel frustrated when devices don’t work properly or when they have to adjust to a new interface or function, but these are good opportunities to problem solve.

”Each one of those changes requires us to relearn to be adaptable and that type of cognitive stimulation,” he said. “Other studies would tell us, that can be a very good thing for long-term cognitive health.”

One study, led by Dr. Denise Park, former director of the Center for Vital Longevity at the University of Texas at Dallas, aimed to understand whether training older adults to use tablets could enhance their cognitive function. One-third of the 54 adults enrolled in the study were given an iPad and extensive training on how to operate it for 10 weeks, using the tablets for 15 hours per week. 

The remaining participants were in a placebo group that completed passive activities that required little new skill acquisition, like watching movies and doing puzzles, or placed in a “social group” which had regular social interaction, but no active skill acquisition. 

Cognitive tests at the end of the study found significant improvements in episodic memory and processing speed in the tablet group.  

Learning a new language or a new skill, like photography, can offer similar benefits as learning how to use a tablet. “Each of these tasks would be brand new for a person and they’d be cognitively complex,” Scullin said.”One of the reasons why we think that using computers, the internet, and smartphones, has been a net positive outcome for older adults is that it has been something that’s been brand new, and it has been complex, and it has been challenging.”

AI as a digital memory aid

While digital tools can undoubtedly assist with daily organization, researchers are divided on whether they improve memory retention in the long term. A 2023 study published in Nature Human Behaviour found that external memory aids, like smartphone reminders, can free up cognitive resources for other tasks. However, some experts warn that over-reliance on technology could weaken our brain’s ability to recall information independently — a phenomenon known as “digital amnesia.” The rise of AI has amplified that tension.

The pace with which AI technology has both improved and become adopted by users opens the door to new research examining the impacts of AI on cognitive function — particularly for everyday tasks that don’t require much thought. 

“[Using] AI, you do have to generate the question, and then, hopefully, you’re thinking about the response, and then, hopefully, you’re using that thought process to not just do copying and pasting,” Scullin said. “Hopefully you’re also engaging in some other critical thinking process.” 

Scullin shared that he and his colleagues use AI in an “active” way, like helping to solve programming problems. In other words, such technology may be beneficial if approached as a way to assist in addressing a larger project and not as a substitute for mental effort. 

“In the case of recommendations for older adults, and those who want to preserve cognitive health, I think the recommendation should be: Use it as a tool to help you achieve tasks you are actively going to try to solve,” Scullin said.

Digital memory aids can be useful, particularly for those facing early cognitive challenges. But they are not a cure-all, and overuse may lead to unintended consequences. The key, experts say, is mindful integration: leveraging technology for support, but not as a replacement for engagement and learning.