Pathological jealousy, also known as morbid jealousy, is a psychological disorder characterized by a pervasive preoccupation with the belief that one's spouse or romantic partner is being unfaithful, despite the absence of any real or substantiated evidence. The condition encompasses two primary clinical subtypes: obsessional jealousy and delusional jealousy, the latter also referred to as Othello syndrome. Obsessive jealousy is generally classified as a subtype of obsessive-compulsive disorder, reflecting recurrent, intrusive thoughts and compulsive behaviors related to concerns about infidelity. In contrast, delusional jealousy is recognized as a subtype of delusional disorder, involving fixed, false beliefs concerning a partner's infidelity that are resistant to reason or contrary evidence.
Delusional jealousy This disorder is characterised by persistent suspicions of a partner's infidelity that are not supported by the evidence. Individuals affected by the condition may misinterpret neutral behaviour as indications of unfaithfulness, which further reinforces their perceptions. Some studies have suggested that the disorder may co-occur with other conditions, including psychiatric disorders such as schizophrenia and delusional disorder, as well as mood disorders such as bipolar disorder. It has also been associated with certain behaviours, including stalking, cyberstalking, sabotage, alcoholism, sexual dysfunction, and neurological disorders such as Parkinson's disease. Pathological jealousy is generally identified through clinical assessment and is recognised as a possible feature of certain psychiatric conditions. According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), it may be observed in disorders such as obsessive-compulsive disorder and delusional disorder. While it is not classified as a distinct diagnostic category, pathological jealousy is often viewed as a manifestation of underlying mental health issues. The term "Othello Syndrome" is derived from the central character in Shakespeare’s tragedy Othello. In the play, Othello kills his wife Desdemona in the mistaken belief that she has been unfaithful to him. However, some scholars and experts have pointed out that Othello's actions resulted from manipulation and misinformation, which did not exhibit the clinical features of delusional disorder.
Psychiatric history Clinical assessment of pathological jealousy requires a comprehensive assessment of the psychiatric history, encompassing the following areas:
Presenting difficulties: neurotic or psychotic jealousy Past psychiatric history: neurotic or psychotic disorders, deliberate self-harm, and attempted suicide Family history: mental illness, including pathological jealousy Relationship history: incorporating both the current and previous relationships, and taking account of the quality of the relationships and the difficulties experienced Forensic history: previous and pending charges and convictions, as well as deviant behavior which was not reported or did not result in a charge or conviction (including aggressive behavior and stalking) Medical history: organic causes which may be responsible for the morbid jealousy (e.g., Parkinson's)
Forms Obsessions: in individuals with pathological jealousy, obsessive jealous thoughts are often experienced as egodystonic; i.e., contrary to the individual's values or wishes. These thoughts are often perceived as irrational and intrusive and may lead to the emergence of compulsive behavior such as checking up on their partner may follow. Some research suggests that pathological jealousy may lie on a continuum from obsessional to delusional thinking. Due to individual differences, there may also be significant differences in the degree of self-affliction experienced by the patient Extreme obsessions: the individual may spend a significant amount of time ruminating on jealousy and find it difficult to shift their focus. This preoccupation may lead to excessive behaviour, such as restricting the freedom of the partner. Although a distinction was occasionally difficult to make, the categories of ‘psychotic’ (delusional) and ‘neurotic’ jealousy contained similar proportions (each between one-third and one-half). Delusions: egosyntonic thoughts refer to ideas or behaviours that individuals perceive as true, reasonable, and consistent with their personal values or identity, and therefore are not resisted. Some authors compare morbid jealousy to a delusional state. Beliefs may include the morbidly jealous subjects' suspicion that: 1. they are being poisoned or given some substance(s) to decrease sexual potency by their partner, 2. that their partner has contracted a sexually transmitted disease from a third party 3. that their partner is engaging in sexual intercourse with a third party while the subject sleeps. Overvalued ideas: overvalued ideas are characterised by a reasonably comprehensible thought of the patient that goes beyond the bounds of rationality in a particular situation. The idea itself is not irrational, but the patient's lack of resistance may lead to excessive behaviours, such as investigations to maintain a partner's loyalty. This kind of highly evaluative behaviour towards ideas can have negative consequences for both parties in the relationship. Overvalued ideas are characterized by being existent in the individual's own thoughts, and being egosyntonic; this means that patients may act on these ideas because they are consistent with the individual's ego, or consistent with the individual's ideal self-image, the ideas are also amenable to reason but are not resisted, even if they may have irrational consequences.
Causes
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