Catherine Hamilton-Giachritsis
University of Bath
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Catherine Hamilton-Giachritsis.
The Lancet | 2005
Kevin D. Browne; Catherine Hamilton-Giachritsis
There is continuing debate on the extent of the effects of media violence on children and young people, and how to investigate these effects. The aim of this review is to consider the research evidence from a public-health perspective. A search of published work revealed five meta-analytic reviews and one quasi-systematic review, all of which were from North America. There is consistent evidence that violent imagery in television, film and video, and computer games has substantial short-term effects on arousal, thoughts, and emotions, increasing the likelihood of aggressive or fearful behaviour in younger children, especially in boys. The evidence becomes inconsistent when considering older children and teenagers, and long-term outcomes for all ages. The multifactorial nature of aggression is emphasised, together with the methodological difficulties of showing causation. Nevertheless, a small but significant association is shown in the research, with an effect size that has a substantial effect on public health. By contrast, only weak evidence from correlation studies links media violence directly to crime.
Trauma, Violence, & Abuse | 2011
Tanja Hillberg; Catherine Hamilton-Giachritsis; Louise Dixon
This review evaluates the quality of recent meta-analyses on child sexual abuse and adult psychopathology. Using systematic review methods, seven recently published, English-language meta-analyses met the inclusion criteria of assessing outcome of child sexual abuse. Some methodological weaknesses were identified, such as failure to assess the validity of the primary studies. Child sexual abuse was found to be a nonspecific risk factor in the development of adult mental health difficulties, but the effect sizes varied (partly related to sample type and size). No gender difference was consistently found on adult mental health difficulties but was for victims’ perceived mental health consequence. Future meta-analyses need to consider their methods of assessing primary studies to allow for an evidence-based model of adult psychopathology.
Trauma, Violence, & Abuse | 2006
Rebecca Johnson; Kevin D. Browne; Catherine Hamilton-Giachritsis
A recent survey has revealed a large number of young children in institutional care across Europe. Young children placed in institutional care without parents may be at risk of harm. This review considers systematically the research evidence on the impact of institutional care on brain growth, attachment, social behavior, and cognitive development. Analytical epidemiological study designs (i.e., including a control/comparison group) show that young children placed in institutional care are at risk of harm in terms of attachment disorder and developmental delays in social, behavioral, and cognitive domains. Delays in physical growth, neural atrophy, and abnormal brain development have also been implicated. The findings suggest that the lack of a one-to-one relationship with a primary caregiver is a major cause of harm to children in residential care. Evidence indicates that infants who are placed in institutional care will suffer harm to their development if they are not moved to family-based care by the age of 6 months. The neglect and damage caused by early privation and deprivation is equivalent to violence and policy makers should work to ensure that every child has the opportunity to grow up in a family environment.
BMJ | 2006
Kevin D. Browne; Catherine Hamilton-Giachritsis; Rebecca Johnson; Mikael Ostergren
Children in institutional care are at risk of attachment disorder and developmental delay, but Europe still relies heavily on this form of care for children in adversity
Journal of Family Violence | 2007
Louise Dixon; Catherine Hamilton-Giachritsis; Kevin D. Browne; Eugene Ostapuik
This study considers the characteristics associated with mothers and fathers who maltreat their child and each other in comparison to parents who only maltreat their child. One hundred and sixty-two parents who had allegations of child maltreatment made against them were considered. The sample consisted of 43 fathers (Paternal Family—PF) and 23 mothers (Maternal Family—MF) who perpetrated both partner and child maltreatment, together with 23 fathers (Paternal Child—PC) and 26 mothers (Maternal Child—MC) who perpetrated child maltreatment only. In addition, 2 fathers (Paternal Victim—PV) and 23 mothers (Maternal Victim—MV) were victims of intimate partner maltreatment and perpetrators of child maltreatment and 7 fathers (Paternal Non-abusive Carer—PNC) and 15 mothers (Maternal Non-abusive Carer—MNC) did not maltreat the child but lived with an individual who did. Within their family unit, 40.7% of parents perpetrated both intimate partner and child maltreatment. However, fathers were significantly more likely to maltreat both their partner and child than mothers and mothers were significantly more likely to be victims of intimate partner violence than fathers. PF fathers conducted the highest amount of physical and/or sexual child maltreatment while MC and MV mothers perpetrated the highest amount of child neglect. Few significant differences between mothers were found. PF fathers had significantly more factors associated with development of a criminogenic lifestyle than PC fathers. Marked sex differences were demonstrated with PF fathers demonstrating significantly more antisocial characteristics, less mental health problems and fewer feelings of isolation than MF mothers. MC mothers had significantly more childhood abuse, mental health problems, parenting risk factors and were significantly more likely to be biologically related to the child than PC fathers. This study suggests that violent families should be assessed and treated in a holistic manner, considering the effects of partner violence upon all family members, rather than exclusively intervening with the violent man.
Journal of Interpersonal Violence | 2008
Louise Dixon; Catherine Hamilton-Giachritsis; Kevin D. Browne
The heterogeneity of domestic violent men has long been established. However, research has failed to examine this phenomenon among men committing the most severe form of domestic violence. This study aims to use a multidimensional approach to empirically construct a classification system of men who are incarcerated for the murder of their female partner based on the Holtzworth-Munroe and Stuart (1994) typology. Ninety men who had been convicted and imprisoned for the murder of their female partner or spouse in England were identified from two prison samples. A content dictionary defining offense and offender characteristics associated with two dimensions of psychopathology and criminality was developed. These variables were extracted from institutional records via content analysis and analyzed for thematic structure using multidimensional scaling procedures. The resultant framework classified 80% (n = 72) of the sample into three subgroups of men characterized by (a) low criminality/low psychopathology (15%), (b) moderate-high criminality/ high psychopathology (36%), and (c) high criminality/low-moderate psychopathology (49%). The latter two groups are akin to Holtzworth-Munroe and Stuarts (1994) generally violent/antisocial and dysphoric/borderline offender, respectively. The implications for intervention, developing consensus in research methodology across the field, and examining typologies of domestic violent men prospectively are discussed.
Deviant Behavior | 2015
Helen C. Whittle; Catherine Hamilton-Giachritsis; Anthony R. Beech
This study involved interviews with three female victims of on-line grooming and contact sexual abuse and the three adult males who groomed and abused them. Results indicate that victim and offender dyads most commonly disagreed in their accounts of the sexual elements of the relationship, including initiation; stage when sexualization took place; production of photos and videos; and initiation of contact sexual abuse. The study found that the dynamic between offenders and victims of on-line grooming and child sexual abuse can be varied and complex. Findings are discussed in the context of implications for practitioners and prevention.
Behavioral Sciences & The Law | 2014
Chelsea Slater; Jessica Woodhams; Catherine Hamilton-Giachritsis
There are investigative advantages to being able to determine early in a police investigation whether a rape has been committed by a serial or a one-off rapist. Previous research has found some differences in the crime-scene behaviors of serial and one-off rapists; however, this research suffers from the limitation of utilizing a sample of rapes within which there was a mixture of victim-offender relationships. To address this limitation, this study sampled 38 serial (two or more convictions) and 50 one-off (one conviction) stranger rapists and compared their crime scene behavior across four domains (control, sex, escape and style behaviors). Serial and one-off rapists differed in some control and sexual behaviors, in particular, in the type of victim targeted, the offense locations, methods of control and the sexual acts forced upon the victim. However, the results did not indicate a striking difference in the offending behavior of the two groups. The implications of these findings for criminal investigations are discussed.
Trauma, Violence, & Abuse | 2018
Sinead Lambe; Catherine Hamilton-Giachritsis; Emily Garner; Julian Walker
It has long been hypothesized that feelings of inferiority or low self-esteem lead individuals to aggress against those they view as being threatening. However, recent studies suggest that it is not just the level of self-esteem but stability that is relevant to understanding this process. As such, researchers have looked to related constructs, such as narcissism, in trying to understand aggressive behaviors. Narcissism is characterized by a dissociation between an unconscious sense of inadequacy and a conscious feeling of superiority. A large number of studies examining the relationship between narcissism and violence have recently been published within both clinical and student populations. This review aimed to systematically collate the findings of such studies and integrate them within current theories of violence. Electronic literature databases such as Web of Science, MEDLINE, PsychINFO, EMBASE, Cochrane databases, and LexisNexis (legal database) were searched to identify studies examining the relationship between narcissism and violence. Twenty articles were included in this review, describing 25 separate samples. Findings suggest that narcissism is relevant in understanding aggression and violence. This was consistent across both clinical and nonclinical populations and therefore does not appear to be an artifact of studying either very violent or student samples. Evidence from student samples strongly supported the association between narcissism and aggression following an ego threat, while studies using clinical samples did not examine the effect of an ego threat. These findings may have an impact on how we understand, predict, and reduce violence.
Sexual Abuse: A Journal of Research and Treatment | 2017
Juliane A. Kloess; Sarah Seymour-Smith; Catherine Hamilton-Giachritsis; Matthew L. Long; David Shipley; Anthony R. Beech
Transcripts of chat logs of naturally occurring, sexually exploitative interactions between offenders and victims that took place via Internet communication platforms were analyzed. The aim of the study was to examine the modus operandi of offenders in such interactions, with particular focus on the specific strategies they use to engage victims, including discursive tactics. We also aimed to ascertain offenders’ underlying motivation and function of engagement in online interactions with children. Five cases, comprising 29 transcripts, were analyzed using qualitative thematic analysis with a discursive focus. In addition to this, police reports were reviewed for descriptive and case-specific information. Offenders were men aged between 27 and 52 years (M = 33.6, SD = 5.6), and the number of children they communicated with ranged from one to 12 (M = 4.6, SD = 4.5). Victims were aged between 11 and 15 (M = 13.00, SD = 1.2), and were both female and male. Three offenders committed online sexual offenses, and two offenders committed contact sexual offenses in addition to online sexual offenses. The analysis of transcripts revealed that interactions between offenders and victims were of a highly sexual nature, and that offenders used a range of manipulative strategies to engage victims and achieve their compliance. It appeared that offenders engaged in such interactions for the purpose of sexual arousal and gratification, as well as fantasy fulfillment.