The Cognitive Symptoms of Depression

Depression is a common mental illness that affects millions of people around the world each year. It manifests not only in physical symptoms, such as fatigue and loss of appetite but also in cognitive symptoms, such as negative thinking and memory problems.

In this article, we will explore the cognitive symptoms of depression, their causes, and their effects on individuals.

What Are The Cognitive Symptoms of Depression?

Cognitive symptoms of depression are negative changes in thinking patterns, memory, and concentration that affect an individual’s ability to function normally. They often include the following:

Negative Thinking Patterns

People with depression often have negative thoughts about themselves, others, and the world around them. They may have feelings of worthlessness, guilt, and hopelessness, which may lead to suicidal ideation. These negative thinking patterns can also lead to a lack of motivation, decreased energy levels, and lack of interest in life.

Poor Concentration

People with depression may have trouble staying focused and concentrating on tasks. They may struggle with decision-making and have difficulty completing tasks that require attention to detail. They may also have difficulty starting tasks or procrastinating, making it hard to be productive.

Memory Problems

People with depression may have difficulty retaining information and recalling details, especially about recent events. They may also struggle with short-term memory, such as forgetting appointments, conversations, and where they put their belongings. These memory problems can make it hard to learn new things and complete tasks effectively.

What Causes Cognitive Symptoms of Depression?

The exact causes of cognitive symptoms in depression are not well understood. However, there are several factors that may contribute to cognitive symptoms in depression:

Changes in Brain Chemistry

Depression is thought to be linked to changes in brain chemistry, specifically a decrease in the level of neurotransmitters, such as serotonin and dopamine. These changes in neurotransmitter levels can impact cognitive functions, such as memory, decision-making, and attention.

Chronic Stress

Chronic stress has been linked to cognitive problems, as it stimulates the production of cortisol, which is a stress hormone. High levels of cortisol for prolonged periods can lead to changes in brain function and structure, which can affect memory, learning, and other cognitive functions.

Sleep Problems

People with depression may experience sleep problems, such as insomnia or hypersomnia, which can impact cognitive functions. Lack of sleep affects the brain’s ability to function properly, leading to problems with concentration, memory, and decision-making.

The Effects of Cognitive Symptoms of Depression

Cognitive symptoms of depression can have a significant impact on an individual’s ability to function and enjoy life. Some of the effects of cognitive symptoms include:

Difficulty with Work and School

People with depression may struggle with productivity at work or school due to their cognitive symptoms. They may have difficulty staying focused, completing tasks, and recalling important information.

Social and Relationship Problems

Depression can lead to isolation and social withdrawal, leading to problems with relationships. Cognitive symptoms may also cause individuals to have negative thoughts about themselves and others, leading to conflicts and misunderstandings.

Impact on Daily Activities

Cognitive symptoms, such as memory problems and poor concentration, can make daily activities such as cooking, cleaning, paying bills, and shopping difficult. These difficulties can lead to frustration and a sense of helplessness.

Treatment for Cognitive Symptoms of Depression

Cognitive symptoms of depression can be challenging to treat, but there are several options available.

Cognitive-Behavioral Therapy (CBT)

CBT is a therapy that aims to identify and change negative thinking patterns and behaviors that contribute to depression. This therapy can be effective in treating cognitive symptoms and improving mood.

Antidepressant Medications

Antidepressant medications, such as SSRIs and SNRIs, can be effective in treating both physical and cognitive symptoms of depression. These medications work by correcting imbalances in neurotransmitter levels in the brain.

Lifestyle Changes

Making lifestyle changes, such as regular exercise, a healthy diet, and improving sleep patterns, can help to alleviate cognitive symptoms of depression. Avoiding alcohol and other substances and practicing stress-reduction techniques, such as mindfulness and meditation, can also help.


Depression is a complex mental illness that affects many people around the world. Cognitive symptoms, such as negative thinking patterns, poor concentration, and memory problems, can have a significant impact on an individual’s ability to function and enjoy life. Although the exact causes of these symptoms are not well understood, there are several treatment options available to help individuals alleviate these symptoms and improve their quality of life.


FAQs About The Cognitive Symptoms Of Depression in Australian English

1. What are the most common cognitive symptoms of depression?

The most common cognitive symptoms of depression include difficulty concentrating or making decisions, memory problems, negative thoughts or beliefs, and decreased motivation or interest in activities. These symptoms can have a significant impact on a person’s daily life and overall functioning.

2. Can cognitive symptoms of depression be treated?

Yes, cognitive symptoms of depression can be treated with various therapies, such as cognitive-behavioral therapy (CBT) and medication. CBT helps individuals identify and change negative or distorted thought patterns, while medication can help alleviate symptoms by balancing chemical imbalances in the brain.

3. How can I support someone experiencing cognitive symptoms of depression?

Supporting someone with depression can be helpful in their recovery. You can provide emotional support by listening actively and offering encouragement, while also supporting them in seeking professional help. Additionally, helping them maintain a healthy and balanced lifestyle, including regular exercise and healthy eating habits, can also aid in their recovery.


1. American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlington, VA: American Psychiatric Publishing.

2. Kessing, L. V., Hansen, M. G., & Andersen, P. K. (2017). Course of illness in depressive and bipolar disorders. The Journal of Clinical Psychiatry, 78(3), e286-e294. doi: 10.4088/JCP.15r10322.

3. McClenahan, L. J., & Kleven, M. (2017). Cognitive and physiological symptoms of depression in older adults: A comparison of self-report and clinical ratings. Journal of Affective Disorders, 208, 311-318. doi: 10.1016/j.jad.2016.10.044.