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Showing posts from August, 2024

I’m obsessed with you: Variants of ‘favorite persons’ in borderline personality, autism, narcissism, and psychopathy

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I’m obsessed with you: Variants of ‘favorite persons’ in borderline personality, autism, narcissism, and psychopathy The concept of a ‘favorite person’ has become a popular topic in the online discussion of psychiatric disorders, however, there has been insufficient differentiation of the characteristics of favorite persons that differ in their underlying cause. In this paper, I define and differentiate the types of ‘favorite persons’ that occur in borderline personality, autism, narcissism, and psychopathy. Borderline Personality & Autism Borderline personality disorder and autism may appear to overlap in some characteristics at the surface level, which has been taken by some as indicating causal overlap between the disorders (e.g., Dudas et al. 2017), however biological systems can be perturbed in different or opposite ways which may lead to symptoms which appear similar on the surface, and may be mistaken as indication of causal overlap if not carefully examined (Crespi 2020), f...

Eggs In One Basket: A Model For Understanding the Maladaptive and Adaptive Dimensions of Mental Disorders, and Their Relations with Personality

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Eggs In One Basket: A Model For Understanding the Maladaptive and Adaptive Dimensions of Mental Disorders, and Their Relations with Personality Psychiatric disorders have been characterized as having a basis in one or more personality dimensions that correspond to symptom dimensions of the disorder, however the reason for these symptom dimensions occurring together is left unexplained, as the personality dimensions that the symptom dimensions map onto are not correlated. Furthermore, evolutionary theories of psychiatric disorders are apparently contradicted by the multidimensionality of psychiatric disorders, where one dimension is associated with positive outcomes supporting the evolutionary hypothesis, but the other dimension is associated with negative outcomes that contradict the hypothesis. The lack of correlation between personality traits that symptoms map onto has been previously explained as such disorders not indicating traditional symptoms of features that covary together, b...

Secondary Psychopathy as the Adult Manifestation of ADHD

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Secondary Psychopathy as the Adult Manifestation of ADHD Secondary psychopathy and ADHD are psychiatric phenotypes which have been framed in very opposing ways: ADHD is typically seen as a childhood disorder, secondary psychopathy as an adult disorder; ADHD is a neurodevelopmental disorder, secondary psychopathy a personality disorder; ADHD is a disability, secondary psychopathy is a character flaw; yet, despite their framing, and widespread consideration as distinct and existing in separate domains, these two phenotypes are remarkably similar, with nearly identical correlates and outcomes, and similar underlying neurobiology. The separation of these disorders, I argue, is scientifically invalid and based on social biases, and that the consideration of them as separate has led to poor and incomplete characterization of ADHD and secondary psychopathy, when in reality they are the same condition including the features of both ADHD and secondary psychopathy. Disruptive Behavioral Disorder...