Due to lack of time posting has been slow, however here are some studies of interest; Increased Volume of the Striatum in Psychopathic Individuals (August, 2009)http://www.journals.elsevierhealth.com/periodicals/bps/article/PIIS0006322309007884/abstract also of interest is swivelchair’s post; Unified Field Theory of Psychopath Brain Development: Retinoid Toxicity, http://neurologicalcorrelates.com/wordpress/2009/09/04/unified-field-theory-of-psychopath-brain-development-retinoid-toxicity/
In the latest issue of, Criminal Justice and Behavior (November 2009, Volume 36, No. 11) http://cjb.sagepub.com/current.dtl is a special issue on biosocial criminology more research of interest can be found such as; All in the Family: Gene x Environment Interaction Between DRD2 and Criminal Father Is Associated With Five Antisocial Phenotypes, Phenotypic and Aetiological Associations Between Psychopathic Tendencies, Autistic Traits, and Emotion Attribution and The Criminology of the Amygdala to mention some.
The following by Glenn, Raine, Schug, Young and Hauser concerning moral decision-making and psychopathy is also of interest; Increased DLPFC activity during moral decision-making in psychopathy Export (October, 2009) http://www.mit.edu/~lyoung/Site/Publications_files/Glenn_DLPFC_MoralJudgment.pdf
Finally, The Path Whisperer touch on an amusing yet very serious question, Can cats sense someone is a sociopath? http://pathwhisperer.wordpress.com/2009/10/09/unusual-search-can-cats-sense-someone-is-a-sociopath/ I know my dog, now in dog heaven, had an intense dislike for some individuals.