Neurobiological Mechanisms Library

Functional connectivity (FC) is defined as the temporal coincidence of spatially distant neurophysiological events, wherein two regions are considered to show functional connectivity if there is a statistical relationship between the measures of activity recorded for them. Extensions of this include both static and dynamic FC.

Functional Connectivity

The Hypothalamic-Pituitary-Adrenal (HPA) axis is a crucial neuroendocrine system that orchestrates the body's response to stress. While highly active during a stress response, its hormonal cascade operates more slowly than the immediate reaction of the sympathetic nervous system. The process begins when the hypothalamus releases corticotropin-releasing factor (CRF), which signals the pituitary gland to secrete adrenocorticotropic hormone (ACTH). ACTH then travels to the adrenal glands, stimulating them to release hormones like cortisol into the bloodstream. This hormonal sequence ultimately provides the body with the energy needed to manage the stressor.

Hypothalamic-Pituitary-Adrenal (HPA) Axis

Biological systems, cascades, processes, and factors that are modulated by the anatomy, physiology, and pathology of the nervous system.

University of Minnesota - Twin Cities

The development of Borderline Personality Disorder is understood to be a complex process influenced by multiple factors. Key contributors include genetic predispositions and adverse childhood experiences, such as sexual abuse. The interplay between these genetic and environmental elements, along with neurobiological and epigenetic mechanisms, are all considered important in its etiology.

Etiology of Borderline Personality Disorder

Epigenetics involves genetic control by factors other than an individual's DNA sequence. Epigenetic changes can switch genes on or off and determine which proteins are transcribed. Unlike genetic changes, epigenetic changes are reversible and do not change your DNA sequence, but they can change how your body reads a DNA sequence.

Epigenetic Influence

Neurobiological Mechanisms

Based on the provided case study, analyze the most likely contributing factors to the individual's psychological difficulties, according to contemporary models of how this type of personality disorder develops.

Analyzing Contributing Factors in a Personality Disorder Case

Core personality traits that characterize borderline personality disorder, such as impulsivity and emotional instability, show a high degree of heritability, indicating that genetic factors are important in the development of the disorder (Livesley, 2008).

Heritability of Impulsivity and Emotional Instability in Borderline Personality Disorder

The rate of borderline personality disorder among relatives of people who have the disorder has been found to be as high as 24.9%, providing further evidence that genetic factors are important in the development of the disorder (White, Gunderson, Zanarani, & Hudson, 2003).

Familial Recurrence Rate of Borderline Personality Disorder

Individuals with borderline personality disorder report experiencing childhood physical, sexual, and/or emotional abuse at rates far greater than those observed in the general population, indicating that environmental factors are also crucial in the development of the disorder (Afifi et al., 2010).

Elevated Childhood Abuse Rates in Individuals with Borderline Personality Disorder

The combined evidence that borderline personality disorder traits are heritable, that the disorder runs at high rates among relatives, and that affected individuals report elevated rates of childhood abuse suggests that borderline personality disorder may be determined by an interaction between genetic factors and adverse environmental experiences.

Learn Before

Related

Learn After