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A study with a sample of inpatient children/adolescents was consistent with the tripartite model as well. [18] Findings from a study in 2006 of a community sample of youth supported the tripartite in youth and further supported that anxiety and depression do represent unique syndromes in youth based on differences found in positive affect. [22]
It is difficult to develop an animal model that perfectly reproduces the symptoms of depression in patients. It is generic that 3 standards may be used to evaluate the reliability of an animal version of depression: the phenomenological or morphological appearances (face validity), a comparable etiology (assemble validity), and healing similarities (predictive validity).
There are ten questions about depression symptom frequency that the patient rates on a straight 4 point scale according to the following choices: "hardly ever," "much of the time," "most of the time," "all the time," and one question relating to the severity of suicidal ideation. [1] Scores on the test range from 0 to 33.
In Rehm's model, self-evaluation is characterized in those experiencing depression by inaccurate, and often external, attributions of causality and stringent self-evaluation criteria. For example, an individual who self-imposes a criterion of obtaining 100% on every test they take, has set an unrealistic criterion.
Some depression rating scales are completed by patients. The Beck Depression Inventory, for example, is a 21-question self-report inventory that covers symptoms such as irritability, fatigue, weight loss, lack of interest in sex, and feelings of guilt, hopelessness or fear of being punished. [11]
I think much of the information here can be distributed amongst other pages, and summarized on the general animal model page in the behavior science section. Or maybe all the other pages could re-direct here, except that several of these protocols are used for more than depression modeling. In any event I'll add this to some projects.
For example, in the context of depression, the diathesis-stress model can help explain why Person A may become depressed while Person B does not, even when exposed to the same stressors. [7] More recently, the diathesis-stress model has been used to explain why some individuals are more at risk for developing a disorder than others. [9]
Rank theory is an evolutionary theory of depression, developed by Anthony Stevens and John Price, and proposes that depression promotes the survival of genes. [1] Depression is an adaptive response to losing status (rank) and losing confidence in the ability to regain it. The adaptive function of the depression is to change behaviour to promote ...