Signs of depression generally include feelings of sadness, loss of interest and a number of other emotional and physical problems that represent a significant change from a person's normal level of functioning. While paranoia may occur in people who are depressed, it is also potentially a sign of another serious psychological disorder and warrants further assessment by a professional.
Symptoms of Depression
Symptoms of depression include persistent feelings of sadness and emptiness, a loss of pleasure and lack of interest in participating in daily activities, feelings of worthlessness, hopelessness, helplessness, excessive guilt and self-loathing. Depression symptoms may also manifest themselves physically, causing fatigue, weight loss or gain, and sleep disturbances such as insomnia, hypersomnia, or trouble falling or staying asleep. Depressed persons may cite mental symptoms, as well, including memory loss, difficulty concentrating and paying attention, problems making decisions and organizing their thoughts, and trouble initiating actions. A serious symptom of depression is the development of suicidal thoughts that may or may not be accompanied by self-harm behaviors or suicidal gestures and attempts.
Symptoms of Paranoia
Paranoia is a delusion in which an individual believes something to be true without reasonable or rational basis. Those with paranoid thoughts typically have an exaggerated sense of self-importance and are overwhelmed by feelings of persecution, mistrust and suspicion. People suffering from paranoia may experience a rift in their social relationships because of their mistrust in others. They are also easily offended, defensive and argumentative, preoccupied with others' hidden motives, self-righteous, stubborn, uptight, perfectionistic and unforgiving.
There are many types of paranoia, the most common of which is persecutory paranoia in which the person believes others are actively try to harm or defame him. The person with paranoia may also experience thoughts of hypochondriasis (he is suffering from unusual diseases and others are to blame), religious paranoia (he is a messenger of God under threat from other groups), conjugal paranoia (his relationship partner is cheating on him) or erotomania (others want to marry him or be with him sexually). Those who suffer from litigious paranoia is prone to initiate lawsuits, believing other groups of people have formed to bother him.
The Relationship Between Depression and Paranoia
According to the Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition (DSM-IV), which is used to diagnose psychological disorders, paranoia is considered a psychotic symptom. Psychotic symptoms can be present in a number of different psychological disorders, including Major Depressive Disorder. Paranoia and paranoid delusions may also be present, however, in a number of other serious disorders such as schizophrenia, schizoaffective disorder, paranoid personality disorder, and in the depression phase of bipolar disorder. A study reported in the January 2004 issue of "Psychological Medicine" shows that, among patients diagnosed with schizophrenia, paranoid thoughts are the biggest long-term predictor for depression. To determine whether the paranoia and depression are symptoms of one of these other conditions, it is vital for anyone experiencing the above symptoms to consult a qualified mental health care professional for thorough assessment, diagnosis and treatment.
References
- Mayo Clinic: Major Depression
- Mental Health America: Paranoia and Paranoid Disorders
- "Psychological Medicine;" The evolution of insight, paranoia and depression during early schizophrenia; R.J. Drake et al.; 2004
