As a teenager Manson began spending most of his time in prison, he was considered dangerous and was described as suffering from a "marked degree of rejection, instability and psychic trauma" and "constantly striving for status and securing some kind of love."
In the …show more content…
He conducted research to better understand antisocial behaviour and clinical disorders. One of his experiments was conducted in an attempt to discover if murderers who have pleaded not guilty by reason of insanity (NGRI) show evidence of brain abnormalities. The study used PET scans to examine the brains of 41 people (39 males and 2 females) who were charged with murder and were pleading Not Guilty for Reasons of Insanity (NGRI) and compared them with 41 controls. All the NGRIs were referred to the imaging centre for legal reasons, such as to obtain evidence for the defence. The reasons for the referrals included schizophrenia, head injury, and personality disorders. The participants were matched by age and sex to a control group of participants. The participants with schizophrenia were matched with other people with the same diagnosis but no history of