How to Tell the Difference Between Melancholic and Non-Melancholic Depression
There are several characteristics of melancholic depression that make it stand apart from non-melancholic depression, and they are related to sleep patterns and mood activity.
Sleep Pattern- Insomnia-type sleep patterns (too little sleep)
Mood Activity- Unable to find enjoyment in pleasurable events
Sleep Pattern- Hypersomnia-type sleep patterns (too much sleep)
Mood Activity- Can find enjoyment in pleasurable events
Lastly, the biggest difference between melancholic depression and other types of depression is that a person diagnosed with melancholic depression will have markedly slower movements. In a study published in the Journal of Affective Disorders (2006), researchers found that patients with melancholic depression had “longer latencies, difficulty increasing peak velocities as target amplitudes increased, and hypometric primary saccades during the predictable protocol" (Winograd-Gurvich, et. al.). In layman’s terms, motor movements were impaired in those with melancholic depression.