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Washington D.C. [USA], April 3 : Stress can hinder our ability to develop informed plans by preventing us from being able to make decisions based on memory, suggests recent research.According to Stanford psychologist Anthony Wagner, who is the senior author of the paper, "We draw on memory not just to project ourselves back into the past but to project ourselves forward, to plan.""Stress can rob you of the ability to draw on cognitive systems underlying memory and goal-directed behaviour that enable you to solve problems more quickly, more efficiently and more effectively," he said.The study led by Stanford University researchers was published in the journal of Current Biology.Combined with previous work from Wagner's Memory Lab and others, these findings could have broad implications for understanding how different people plan for the future - and how lack of stress may afford some people a greater neurologically-based opportunity to think ahead."It's a form of neurocognitive privilege that people who are not stressed can draw on their memory systems to behave more optimally," said Wagner, who is the Lucie Stern Professor in the Social Sciences at Stanford's School of Humties and Sciences."And we may fail to actually appreciate that some individuals might not be behaving as effectively or efficiently because they are dealing with something, like a health or economic stressor, that reduces that privilege."The researchers conducted experiments where they monitored participants' behaviour and brain activity - via fMRI - as they navigated through virtual towns. After participants became very familiar winding routes in a dozen towns, they were dropped onto one of the memorized paths and told to navigate to a goal location.To test the effects of stress, the researchers warned some participants that they could receive a mild electric shock, unrelated to their performance, during their virtual rambles.Participants who didn't have to worry about being randomly shocked tended to envision and take novel shortcuts based on memories acquired from prior journeys, whereas the stressed participants tended to fall back on the meandering, habitual routes.Prior to beginning their trek, the participants were virtually held in place at their starting position. Brain scans from this period showed that the stressed individuals were less likely than their counterparts to activate the hippocampus -- a brain structure that would have been active if they were mentally reviewing previous journeys.They also had less activity in their frontal-parietal lobe networks, which allows us to bring neural processes in line with our current goals. Previous work by the researchers had found that stress hinders this neural machinery, making it harder for us to retrieve and use memories.The researchers believe their new study is the first to show how hippocampal-frontal lobe network disruption takes memory replay offline during a planning session due to stress."Its kind of like our brain is pushed into a more low-level thought-process state, and that corresponds with this reduced planning behaviour," said Thackery Brown, who was a postdoctoral scholar in the Memory Lab during this research and is the lead author of the paper.( With inputs from ANI )

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Health :Stress thwarts ability to plan ahead by disrupting memory use

While taking too much stress can lead to depression and other mental health complications, it can also affect our decision-making ability. A recent study has found that stress can hinder our ability to develop informed plans by preventing us from bei ...

:Study reveals stress thwarts our ability to plan ahead by disrupting how we use memory

Stress can hinder our ability to develop informed plans by preventing us from being able to make decisions based on memory, suggests recent research. ...