This dimension refers to the predominant emotional state experienced by an individual with depression. It encompasses feelings of sadness, emptiness, hopelessness, and low mood.

Depression often involves cognitive distortions, negative thought patterns, and difficulties with concentration, memory, and decision-making. This dimension reflects the cognitive symptoms associated with depression, such as pessimism, self-criticism, and rumination.

Depression can significantly affect motivation levels, leading to reduced interest or pleasure in activities that were once enjoyable (anhedonia), decreased energy, and feelings of fatigue. This dimension relates to the motivational aspects of depression, including decreased motivation, inertia, and anhedonia.

Depression influences various aspects of behavior, such as social withdrawal, changes in appetite or sleep patterns, avoidance of responsibilities or activities, and diminished productivity. The behavioral dimension encompasses observable changes in behavior associated with depression.

Depression often presents with physical symptoms, including headaches, digestive issues, muscle aches, and general discomfort. This dimension reflects the somatic or physical manifestations of depression.

Depression can strain interpersonal relationships, leading to difficulties in communication, withdrawal from social interactions, and feelings of loneliness or isolation. The interpersonal dimension encompasses the impact of depression on relationships with others.

This dimension relates to the broader psychological impact of depression, including feelings of worthlessness, guilt, low self-esteem, and a distorted self-image. It also encompasses existential aspects such as feelings of meaninglessness or existential despair.