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A new study published in the American Journal of Psychiatry has given some insight into the biological underpinnings of BPD. For those who do not know what BPD is, I'll go over it quickly. BPD is characterized by "a pervasive pattern of instability of interpersonal realationships, self-image, and affects, and marked impulsivity that begins by early adulthood and is present in a variety of contexts (APA, 2000, pp. 706)*". BPD can have difficult diagnostic considerations since some of the aspects of BPD also fit with other disorders such as schizotypal personality disorder and it often is co-morbid with another personality disorder.
For those who are curious, the DSM-IV-TR diagnostic criteria for BPD are as follows:
A pervasive pattern of instability of interpersonal relationships, self-image, and affects, and marked impuslivity beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the follow:...
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