Expanded Neurobioevolutional Model

Simply put, our initial guiding hypothesis was that CA is a substantial stressor that serves as an antecedent to a succession of developmental brain modifications and associated behavioral dysfunction. Subsequently, this stance was held and expressed by other investigators (Bremner, 1999; Nelson & Carver, 1998; Penza, Heim, & Nemeroff, 2003). Our recent theorizing, however, expands upon this original position and couches the consequences of CA in an evolutionary framework that also incorporates the types of sensory and perceptual stimulation that are experienced as well as windows of sensitivity (Teicher, 2002; Teicher et al., 2003; Teicher, Tomoda, et al., 2006). The following postulates encapsulate our current thinking:

1. The brain goes through one or more sensitive periods in postnatal life when exposure to high levels of stress hormones selects for an alternative pathway of neurodevelopment.

2. The ensuing developmental trajectory is an adaptive one.

3. Exposure to corticosteroids is a keystone element in organizing the brain to develop in this manner.

4. Disparate brain systems are affected by different forms of abuse (e.g., sexual, physical, verbal), particularly the primary and secondary sensory systems that may be especially involved in perceiving or recalling the trauma.

Single Parenting Becoming the Best Parent For Your Child

Single Parenting Becoming the Best Parent For Your Child

Parenting is a challenging task. As a single parent, how can you juggle work, parenting, and possibly college studies single handedly and still manage to be an ideal parent for your child? Read the 65-page eBook Single Parenting Becoming The Best Parent For Your Child to find out how. Loaded with tips, it can inspire, empower, and instruct you to successfully face the challenges of parenthood.

Get My Free Ebook


Post a comment