Related Experiment Video
Updated: Jul 12, 2025

04:33
Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
Published on: April 26, 2024
716
A Study on the Longitudinal Relationship between Changes in Depression and Cognitive Function among Older Adults
Soyoung Park1, Kyuhyoung Jeong1, Seoyoon Lee2
1Department of Social Welfare, Semyung University, 65 Semyung-ro, Jecheon 27136, Republic of Korea.
Healthcare (Basel, Switzerland)
|October 28, 2023
Summary
In older adults living alone, increasing depression is linked to declining cognitive function. Early intervention for depression is crucial to prevent cognitive impairment and dementia in this population.
Area of Science:
- Gerontology
- Neuroscience
- Public Health
Background:
- South Korea's aging population presents unique challenges for older adults living alone.
- Understanding the link between mental health and cognitive decline is critical for this demographic.
Purpose of the Study:
- To investigate the longitudinal relationship between depression and cognitive function changes.
- To identify how depression impacts cognitive trajectories in older adults living alone.
Main Methods:
- Utilized data from the Korean Longitudinal Study of Aging (KLoSA) from 2016 to 2020.
- Included 1354 participants with at least three years of data.
- Employed latent growth modeling (LGM) for analysis.
Main Results:
- Observed a gradual increase in depression and a decline in cognitive function over time.
- Higher initial depression correlated with lower initial cognitive function and faster decline.
- Rapid increases in depression were associated with rapid cognitive function decline.
Conclusions:
- Depression and cognitive function share a complex interplay in older adults living alone.
- Addressing depression is vital for preventing cognitive impairment and dementia.
- Continuous monitoring and intervention for escalating depression are necessary.
Related Concept Videos
Cognitive Development During Adulthood
125
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
125
Longitudinal Research
12.0K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
12.0K
Long-term Depression
2.5K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
Calcium Ion Concentration Mechanism
If over...
2.5K
Longitudinal Studies
171
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
171
Depression: Overview
256
Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
256
Depressive Disorders: MDD and Dysthymia
138
Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
138

