Proper Neuropsychological Assessment Of The Case Of A 19 Year Old Man Under Investigation For Possible Shoplifting Suspected

67) The frontal lobes are described as the brain’s “orchestra leader” (Martin, 1998, p. 190), which would place them at the reins of controlling effective behaviour. Damage to the frontal lobes encompasses a wide range of symptoms including deficits in executive functioning, changes in personality, emotional expression and social interaction. This includes apathy and lack of spontaneity, inability to plan and modify the sequencing of behaviour and inappropriate behaviour. 2

Neurologist Antonio Damasio has written significantly on Gage and other patients that he studied on with similar injuries. Damasio viewed Gage's case as playing a crucial role in the history of neuroscience, and stated that Gage's story "was the historical beginnings of the study of the biological basis of behavior". Gage's case inspired the development of frontal lobotomy, which now is a psychosurgical procedure that leads to emotional response and personality traits. On the other hand, historical analysis doesn't support this claim because Gage's injury didn't have enough influence on the development of this practice.

According to studies led by King’s College researchers, it has been confirmed that “psychopathy is a distinct subgroup of antisocial personality disorder (ASPD)” (Gregory et. al n.p) and similarly to psychopathy, the more severe ASPD behavioral patterns are, the symptoms can be referred to as sociopathic or psychopathic. Furthermore, according to Nigel Blackwood, Ma, MD.MRCPsych, “MRI scans...found that psychopaths had structural brain abnormalities in key areas of their ‘social brains’” (Gregory et. al n.p). The areas of the brain, in which are deficient in psychopaths, are important when comprehending an individual emotions’, intentions, and moral

From neurobiological point of view, Impulsive aggression is seen as a consequence of a failure in the regulation of negative emotions, such as anger, for example. This thinking of Disinhibition and hostility was found and documented by Grafman et al. (1996) in TBI patients with frontal lobe damage involving subcortical limbic structures. According to Davidson et al (2000), threatening environmental stimuli are transmitted to the amygdala, which makes projections to the basal ganglia, where they are integrated with information of the social context that comes from the orbitofrontal cortex. Appropriate behavioral responses can, therefore, be initiated through projections toward other cortical regions, hypothalamus or brain stem. Consequently, the orbitofrontal cortex and adjacent areas such as the dorsolateral prefrontal

2012.). These symptoms are a result of trauma to the lobes that are responsible for an individual’s speech, coordination, memory, and motor control. Each brain structure is vital in how an individual functions and perceives the world; when this structure is damaged, even temporarily, the functions of the structures are delayed. However, long-term issues from damage to the brain are extensively detrimental its function. While some may experience impulsivity, violent behavior, emotional/social withdrawal, and memory issues, others may experience language disturbances and sensory disorders (“Psychological Sequelae: Postconcussion, Frontal and Temporal Lobe Syndromes”. 2012.). These long term issues are commonly due to the persistent damage to the frontal and temporal parts of the

However, more recently, a study led by King’s College London has claimed that there are differences between the brains of psychopaths and other criminal offenders diagnosed with antisocial personality disorder. Dr. Nigel Blackwood who led the research is quoted as saying “We describe those without psychopathy as 'hot-headed' and those with psychopathy as ‘cold-hearted’.” This statement shows a clear distinction between what should be interpreted as a lack of self-control and ability to repress impulses and what should be diagnosed as psychopathy.
The study took MRI scans of 66 men, two thirds of which were offenders who had been diagnosed with antisocial personality whilst the other third were non-offenders considered to not have any personality disorders. Of the 44 offenders, 17 met the diagnosis criteria for psychopathy (ASPD+P) assessed by the guidelines stated in the DSM-IV. Researchers saw that the members of the study diagnosed as psychopaths had notably less grey matter in areas associated with moral behaviour and understanding other peoples’

The brain can be affected by damage and cause behavior to be expressed differently in every person. Events such as a car crash or childhood abuse can affect brain development and function. Damage to certain areas of the brain can have a variety of effects. The hippocampus controls emotions and is associated with memory, and the frontal lobe is a brain cortex that controls motor functions, problem solving, memory, language, judgments, social and sexual behavior and impulse. When the frontal lobe or hippocampus is affected, a person’s emotion can be out of their control. In criminal cases, brain damage can affect the sentencing of a violent criminal, but to what extent should these abnormalities play a role in their conviction? Much research has been conducted in order to determine the effect that brain abnormalities should have on the conviction of violent criminals. A psychiatrist at New York University, Dr. Lewis, has conducted a study on death-row inmates, how their brains work and what affect the damage had on their conviction. By doing so Dr. Lewis paved the way for other researchers, such as Kent Kiehl and Jonathan H. Pincus to study the brains of violent criminals looking for a answer as to whether or not these criminals should be incarcerated. Over time research has been conducted focusing on mental illnesses and brain damage as the cause of violent acts instead of it being just premeditated murder. Many believe brain damage or mental illness should have no affect on

Overall, this article describes numerous cases of people’s personality and behavior being drastically affected by various forms of brain damage, particularly to the frontal lobe. This is consistent with what we have learned about Phineas Gage and his dramatically changed personality. As such, the author, David Eagleman, concludes that humans are not really “free” and that we are all products of our brains’ physical state, meaning that the notion of all humans being equal in their decisions is fundamentally flawed. He therefore proposes modifying the criminal justice system so that sentencing is customized more for the particular offender, taking into account the functionality of the criminal’s brain,

Due to its primary role in processing memory and emotional reactions, over the last decade and a half psychologists have been linking the amygdala to psychopathy. It is involved in aversive conditioning and instrumental learning and is thus involved in all the processes that, when impaired, produce the same functional impairments displayed by psychopaths. Two famous studies conducted by Tiihonen and Kiehl respectively have confirmed this. Tiihonen used a volumetric MRI to test and confirm the positive correlation between low amygdaloid volume and a high degree of psychopathy in violent criminals (measured by the Hare checklist-revised) while Kiehl used a functional MRI to prove reduced amygdala response during an emotional memory task in individuals who scored high on the Hare checklist-revised. However, both these studies along with numerous others were conducted using violent offenders as subjects rather than individuals with psychopathy. Although many psychopaths do exhibit violent tendencies, not all violent offenders are necessarily psychopaths. A study conducted by Raine is one of the few that did focus only on individuals exhibiting psychopathy. In his study Raine was able to show reduced prefrontal grey matter in his test subjects. Unfortunately though, he was unable to differentiate between grey matter in different regions of the prefrontal cortex. It is however clear that there is one region of the frontal cortex that could be

Neuropsychology is the study of brain-behavior relationships (Barkley, 1983). It is the scientific study of the association between the different structures and physiological processes of the nervous system and the behavior of organisms (Barkley, 1983). The focus of this particular field in psychology is not just pertaining to humans as research on infrahumans consistently provides simple scientific information and data from which research ideas on humans will be drawn/ concluded from (Barkley, 1983). For example, research that was conducted on rats involved giving amphetamines to the rats with given closed head injuries yielded the option of exploring the use of stimulant drugs in helping the recovery of adults and children that have experienced accidental closed head trauma (Barkley, 1983). The field includes the study of developmental changes of the nervous system and it’s behavioral parallels as well as the effects of experimental and also accidental changes of the nervous system on the behavior of an individual (Barkley, 1983).

In order to understand why people act in antisocial ways, one needs to pinpoint which area of the brain controls social behavior. The prefrontal cortex has been thought to have something to do with control of social behavior ever since Phineas Gage's famous accident in 1848 (1). Phineas Gage was a

The importance of the amygdala in social cognitions has been examined in both primate and human studies. Use of primates to study the social brain suggests that the amygdala contributes to social cognition. Kluver and Bucy made large bilateral lesions in monkey brains made across the amygdala, temporal neocortex, and surrounding structure. After the lesion, the animals engaged in hypersexual behaviors, unusual tameness, and a lack of knowledge about emotional stimuli. Lesions exclusively targeting the monkey’s amygdala resulted in similar, but more subtle impairments. This suggest that the amygdala may play a role in emotions elicited by social cues. Studies of the amygdala’s role in human social cognition suggest that the temporal lobes process socially relevant facial information from humans. Emotions from facial expressions, in particular fear are projected to the amygdala. Studies using FMRI to examine typical subjects and subjects with amygdala damage support this theory. Individuals with amygdala damage have difficulty recognizing facial expressions, specifically negative emotions such as fear.

In contrast, a technique favoured by cognitive neuropsychologists is neurological case studies. These are reports on individuals who have suffered damage to the nervous system. Researchers can observe the behaviour of participants and interpret how this has been affected by their brain injury. However, the conclusions that can be taken from such studies are also limited, especially when they involve a single subject, (Payne and Wenger, 1982).

Forensic (criminal) psychology is a job field that deals with both psychology and law. The field has experienced dramatic growth in recent years due to the role of popular movies, television programs and books popularizing the field. Often these individuals are depicted as vivid components in solving vicious crimes or timing out a criminal’s next home. While these depictions of certainly entertaining, yet these portrayals are not necessarily precise. Forensic psychologists play an instrumental role in the criminal justice system while applying psychological principles to the legal system. The crossover of the two spheres is best decided in the Encyclopedia of Psychology,

The Anatomy of Violence presents the latest findings in the field of biological psychology and human behavior, focusing on brain chemistry, as it relates to human behavior, and offers great insight on how brains of those who commit acts of violence or crime differ from those who do not. Mr. Raine provides solid scientific data regarding the ways in which brain chemistry differs and how injuries can alter personality using medical MRI and fMRI and various neurotransmitter studies. A clear connection between human biology and behavior emerges, bringing