162 resultados para Sexual paradigm


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Human listeners seem to be remarkably able to recognise acoustic sound sources based on timbre cues. Here we describe a psychophysical paradigm to estimate the time it takes to recognise a set of complex sounds differing only in timbre cues: both in terms of the minimum duration of the sounds and the inferred neural processing time. Listeners had to respond to the human voice while ignoring a set of distractors. All sounds were recorded from natural sources over the same pitch range and equalised to the same duration and power. In a first experiment, stimuli were gated in time with a raised-cosine window of variable duration and random onset time. A voice/non-voice (yes/no) task was used. Performance, as measured by d', remained above chance for the shortest sounds tested (2 ms); d's above 1 were observed for durations longer than or equal to 8 ms. Then, we constructed sequences of short sounds presented in rapid succession. Listeners were asked to report the presence of a single voice token that could occur at a random position within the sequence. This method is analogous to the "rapid sequential visual presentation" paradigm (RSVP), which has been used to evaluate neural processing time for images. For 500-ms sequences made of 32-ms and 16-ms sounds, d' remained above chance for presentation rates of up to 30 sounds per second. There was no effect of the pitch relation between successive sounds: identical for all sounds in the sequence or random for each sound. This implies that the task was not determined by streaming or forward masking, as both phenomena would predict better performance for the random pitch condition. Overall, the recognition of familiar sound categories such as the voice seems to be surprisingly fast, both in terms of the acoustic duration required and of the underlying neural time constants.

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The issue of young people’s experiences of sexual exploitation and sexual violence has received increasing political and media attention within recent years. However, whilst many studies have identified this to be an emerging issue of concern, the collation of prevalence data on the extent of these issues is still very much in its infancy. In this article we report on the findings of a large-scale project on the sexual exploitation of young people, undertaken in Northern Ireland from 2009 to 2011. The article primarily explores young people’s self-reported experiences of sexual violence and exploitation, collated from their responses to a module of questions placed in the 2010 Young Life and Times Survey. The quantitative dataset from the survey covers both prevalence of sexually exploitative experiences and young people’s reports about the type of individuals perpetrating these incidents. This dataset is illustrated and contextualised with reference to the qualitative findings from interviews with young people and professionals conducted as part of the wider sexual exploitation study. The article concludes with a consideration of the implications of the findings, with particular reference to the need for further preventative work in this field.

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This article considers the trajectory and effectiveness of policy, procedures and practice in the UK since the early 1990s in responding to young people who display problematic and harmful sexual behaviours. It draws on data from three publications in which research, policy and practice in the last 20 years have been reviewed. Key themes raised by Masson and Hackett are revisited including: denial and minimisation; terminology and categorisation; similarities with other young offenders; the child protection and youth justice systems; and assessment and interventions. The authors find that there is improvement in recognition of, and practice in response to, this group of young people, but good practice standards are inconsistently applied. With devolution of political powers, Scotland and Northern Ireland are now embarking on a more strategic response than England. The absence of a public debate and prioritising of primary prevention of child sexual abuse is noted.

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From the early 1900s, some psychologists have attempted to establish their discipline as a quantitative science. In using quantitative methods to investigate their theories, they adopted their own special definition of measurement of attributes such as cognitive abilities, as though they were quantities of the type encountered in Newtonian science. Joel Michell has presented a carefully reasoned argument that psychological attributes lack additivity, and therefore cannot be quantities in the same way as the attributes of classical Newtonian physics. In the early decades of the 20th century, quantum theory superseded Newtonian mechanics as the best model of physical reality. This paper gives a brief, critical overview of the evolution of current measurement practices in psychology, and suggests the need for a transition from a Newtonian to a quantum theoretical paradigm for psychological measurement. Finally, a case study is presented that considers the implications of a quantum theoretical model for educational measurement. In particular, it is argued that, since the OECD’s Programme for International Student Assessment (PISA) is predicated on a Newtonian conception of measurement, this may constrain the extent to which it can make accurate comparisons of the achievements of different education systems.

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Over the past few decades, children and young people who have sexually harmed others have attracted increasing attention from researchers and policy makers. Although it is known that they form a small, but significant group, there are difficulties in gaining a clear indication of incidence since much of the existing research has involved small and heterogeneous samples, many of which were not UK-based and lack of control groups for comparison. Furthermore, many incidents of sexual abuse are likely to go unreported. The nature, extent and significant negative consequences of harmful sexual behaviour for the victims and perpetrators, make this an important issue for policy development and research investigation. Overall, research and knowledge in this important area are still accumulating and much remains to be confirmed. Although recent decades have seen a movement towards greater understanding of the issue of harmful sex behaviour, a gap remains. The purpose of the project was to help address this gap in knowledge.

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During the past 30 years, the focus on the extent and nature of child abuse and neglect has been coupled with an increasing interest in the impact on children’s development, health and mental wellbeing. Child maltreatment is both a human rights violation and a complex public health issue, likely caused by a myriad of factors that involve the individual, the family, and the community. Child abuse includes any type of maltreatment or harm inflicted upon children and young people in interactions between adults (or older adolescents). Such maltreatment is likely to cause enduring harm to the child.
The different forms of abuse and neglect often occur together in one family and can affect one or more children. These include, in deceasing level of frequency: neglect; physical abuse and non-accidental injury; emotional abuse; and sexual abuse (Cawson et al, 2000; 2002). Recently, bullying and domestic violence have been included as forms of abuse of children.
There is a sizeable body of literature on the relationship between types of child maltreatment and a variety of negative health and mental health consequences. These include biological, psychological, and social deficits (for reviews, see Crittenden, 1998; Kendall-Tackett, 2001; 2003). Aside from the serious physical and health consequences of child maltreatment, several emotional and behavioural consequences for children have been noted in the literature.

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This chapter adopts a cross-national comparative perspective on institutional child sexual abuse. It seeks first to provide a critical overview of a range of high profile inquiries and official reviews into allegations of institutional child abuse and the dominant transnational themes arising from them. It also seeks to highlight the dynamics of what I have previously termed 'institutional grooming' (McAlinden, 2006) and the features of the organisational environment which both facilitate institutional child sexual abuse and help mask its discovery or disclosure. In so doing, the analysis examines the tension between what others have termed 'preferential' or 'situational' sexual offending – that is whether offenders deliberately set out to gain employment which affords access to children or whether the motivation to sexually offend only emerges after they become ensconced in an institutional environment. Finally, the article concludes by offering some suggestions for combatting institutional grooming and sexual abuse.

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This article outlines the changes to the definition of sexual offences in Northern Ireland following the implementation of the Sexual offences Northern Ireland Order 2008 in 2009, and its implications for nurses working with sexually active children in a range of clinical settings. The paper outlines the key changes for practice and addresses the needs of children in three different age groups with emphasis on children aged 13-15 years, and reviews mandatory reporting, the differences between the rights of children to consent and confidentiality, developmental sexual experimentation and sexual health promotion. It reviews related policy and guidance and makes clear the differences between sexual abuse and exploitation, and experimentation. It seeks to advise the Safeguarding Committee of the Department of Health Northern Ireland on how best to support nurses working with sexually active children and when this activity should be discussed with line managers and safeguarding specialists or referred to the safeguarding authorities.

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Aim: This study aims to describe the sex education and sexual health needs of young people in care, and to explore the degree to which these needs are being met by current provision.As part of the Department for Children and Youth Affairs ‘National Strategy for Data and Research on Children’s Lives, 2011-2016’, the HSE Crisis Pregnancy Programme (CPP) and HSE Children and Families Social Services Care Group have co-commissioned a team of researchers from UCD School of Nursing, Midwifery & Health Systems, Insights Health and Social Research and Queen’s University Belfast to examine the sex education and sexual health needs of young people in care in the Republic of Ireland. The project is supported by a steering group of senior personnel from both partner organisations (CPP and CFS) and external advisors. The study involves data collection with young people, care providers, birth parents and foster parents using a mixed methods approach. Findings from each stage of the study will be combined to inform recommendations for policy and practice.