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As people grow older, they are less likely to share memories of their past experiences, according to a new study. However, even if people do share memories, they will not describe the events in much detail as the younger generation.The results of the study, conducted by researchers at the University of Arizona and published in the journal Frontiers in Human Neuroscience, echo previous findings from lab-based research suggesting that memory sharing declines with age.The Arizona study came to the conclusion in a new way: by "eavesdropping" on older adults' conversations "in the wild."Most research on memory takes place in a laboratory setting, where participants often are asked to memorize lists or recall and describe specific memories from the past. The UArizona researchers wanted to know how often older adults spontaneously bring up memories in the course of their daily conversations - outside of a controlled laboratory setting."This study really gives us one of the first glimpses of people sharing these memories in their day-to-day life," said senior study author Matthew Grilli, an assistant professor in the UArizona Department of Psychology.Over the course of four days, the daily conversations of 102 cognitively healthy older adults, ages 65 to 90, were monitored with the EAR, or electronically activated recorder - a smartphone app that lets researchers record random samples of study participants' conversations.Participants kept their phones on them for the duration of the study, and the EAR captured 30-second snippets every six to 18 minutes each day. The participants didn't know at which points the recordings started or ended.The researchers then analyzed the audio and tallied the number of times participants shared autobiographical memories - or memories about their past experiences."We found that the older individuals in our study shared fewer memories," said lead study author Aubrey Wank. Additionally, we found that the level of detail also decreased with older age as people were describing these memories," a UArizona graduate student in psychology.It's important for people to recall and share memories, Grilli said. Doing so can help them connect with others. It can also guide planning and decision-making and help people find meng in other life events and circumstances.The reason memory sharing declines with age is not entirely clear, but it may be linked to age-related changes in the brain, Grilli and Wank said."There are a number of regions in the brain that seems to play an important role in how often we think about our personal past or future. These brain areas tend to show change with older age, and the idea is that because of these changes, older adults might reflect less on their personal past and future when they're talking with other people," Grilli said.While the study focused specifically on older adults, future research might consider how that population compares with a younger sample, and if the audience to whom a person is speaking affects how often memories are shared, Wank said.The study's use of the EAR app could have implications for how researchers study memory and cognition in the future.Developed by UArizona psychology professor and study co-author Matthias Mehl, the EAR started as a standalone recording device designed to help researchers obtain more natural observations of people's everyday lives.It has since evolved into a mobile app that has proven to be a valuable tool for psychologists who study social interactions. The memory study suggests that the EAR could also benefit neuropsychology researchers like Grilli and Wank, who are interested in the relationship between the brain and behavior."Assessing cognition on a smartphone is sort of like having a mobile neuropsychologist. It follows you around and collects a bunch of data on your cognition, and that might give us a better chance not only to get a more precise estimate of your learning and memory, but also to be able to track changes in cognition over time," Grilli said.Being able to track those changes could help researchers better understand how cognition evolves in aging adults, as well as other populations, such as those with depression or risk factors for Alzheimer's disease."One of the reasons we're really interested in better tracking cognitive decline is because we're learning that diseases like Alzheimer's are impacting cognition probably decades before obvious symptoms arise," Grilli said."The idea that we can develop tools that can track change earlier is intriguing, and it will be important to see if smartphone apps can do that," Grilli added.( With inputs from ANI )

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