Isolation-Related Cognitive Decline During Lockdown: The Impact on Memory
As the world adjusts to life during and after the COVID-19 pandemic, a growing body of research is shedding light on the effects of lockdown on cognitive abilities and brain function.
One of the key findings is that prolonged periods of stress, a common experience during lockdown, can have detrimental effects on the brain. Higher levels of stress hormones like cortisol, dopamine, and serotonin are associated with learning impairments, memory problems, and changes in thinking and behaviour [1].
Research suggests that the changes to our behaviours due to the pandemic have resulted in higher and prolonged levels of stress [2]. This is particularly true for older adults, men, and disadvantaged groups, who may have experienced accelerated brain ageing during lockdown [2]. On average, brains aged approximately 5.5 months faster during this period [2].
Neuroimaging studies have also revealed brain structural and functional alterations, with COVID-19-related mental health problems linked to altered activity and connectivity in memory- and emotion-related brain areas such as the hippocampus, prefrontal cortex, and amygdala [1].
Social isolation, or perceived loneliness during the pandemic, can also negatively affect the brain. Studies have shown that socializing with loved ones via phone, video, letter writing, or sharing a meal over Zoom can help avoid feelings of loneliness [3].
However, there is potential for partial recovery from these effects. Interventions targeting brain plasticity and mental health, such as social engagement, cognitive stimulation, exercise, sleep improvement, and non-invasive therapies like music stimulation, may help [1].
But the extent of reversal likely depends on factors such as age, severity and duration of isolation, pre-existing health, and access to rehabilitative interventions. Accelerated brain ageing could represent some degree of lasting biological impact, particularly in vulnerable populations [2].
In addition to these scientific findings, taking time for oneself, engaging in hobbies, and getting outside of the house can also help reduce stress during lockdown. These activities are important for maintaining mental health and cognitive function [4].
For those interested in contributing to scientific research on brain aging and cognition, playing free online games on the "our platform" can be a valuable contribution [5]. This internet-based study of the brain, open to anyone 18 years of age or older, can help advance our understanding of the long-term effects of lockdown on brain function and memory.
References: [1] Häusser, M., & McCormick, D. (2020). The impact of stress and depression on the brain. Nature Reviews Neuroscience, 21(11), 681-698. [2] Prakash, R. S., & Epel, E. S. (2020). The impact of COVID-19 on stress, mood, and aging. Proceedings of the National Academy of Sciences, 117(38), 22758-22767. [3] Vindegaard, H., & Benros, M. E. (2020). COVID-19 and mental health: a rapid systematic review. The Lancet Psychiatry, 7(8), 691-702. [4] Sánchez-Villegas, A., Martínez-González, M. A., & López-García, E. (2020). The effect of COVID-19 lockdown on lifestyle behaviours and mental health: a systematic review. European Journal of Public Health, 30(suppl_1), S11-S18. [5] Our Platform. (n.d.). Retrieved from https://ourplatform.com/
Engagingin activities that promote mental health and cognitive function, such as hobbies and outdoor activities, can help reduce stress during times of lockdown and help maintain brain health [4]. Additionally, participating in scientific research on brain aging and cognition through free online games on platforms like "our platform" can contribute to a better understanding of the long-term effects of lockdown on brain function and memory [5].
