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"Slater, Alan"
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Perceptual Training Prevents the Emergence of the Other Race Effect during Infancy
Experience plays a crucial role in the development of the face processing system. At 6 months of age infants can discriminate individual faces from their own and other races. By 9 months of age this ability to process other-race faces is typically lost, due to minimal experience with other-race faces, and vast exposure to own-race faces, for which infants come to manifest expertise [1]. This is known as the Other Race Effect. In the current study, we demonstrate that exposing Caucasian infants to Chinese faces through perceptual training via picture books for a total of one hour between 6 and 9 months allows Caucasian infants to maintain the ability to discriminate Chinese faces at 9 months of age. The development of the processing of face race can be modified by training, highlighting the importance of early experience in shaping the face representation.
Journal Article
Developmental Origins of the Other-Race Effect
The other-race effect (ORE) in face recognition refers to better recognition memory for faces of one's own race than faces of another race—a common phenomenon among individuals living in primarily mono-racial societies. In this article, we review findings suggesting that early visual and sociocultural experiences shape one's processing of familiar and unfamiliar race classes and give rise to the ORE within the 1st year of life. However, despite its early development, the ORE can be prevented, attenuated, and even reversed given experience with a novel race class. Social implications of the ORE are discussed in relation to development of race-based preferences for social partners and racial prejudices.
Journal Article
The Other-Race Effect Develops during Infancy: Evidence of Perceptual Narrowing
Experience plays a crucial role in the development of face processing. In the study reported here, we investigated how faces observed within the visual environment affect the development of the face-processing system during the 1st year of life. We assessed 3-, 6-, and 9-month-old Caucasian infants' ability to discriminate faces within their own racial group and within three other-race groups (African, Middle Eastern, and Chinese). The 3-month-old infants demonstrated recognition in all conditions, the 6-month-old infants were able to recognize Caucasian and Chinese faces only, and the 9-month-old infants' recognition was restricted to own-race faces. The pattern of preferences indicates that the other-race effect is emerging by 6 months of age and is present at 9 months of age. The findings suggest that facial input from the infant's visual environment is crucial for shaping the face-processing system early in infancy, resulting in differential recognition accuracy for faces of different races in adulthood.
Journal Article
Pharmacological therapy for post-traumatic stress disorder: a systematic review and meta-analysis of monotherapy, augmentation and head-to-head approaches
Background: Pharmacological approaches are widely used for post-traumatic stress disorder (PTSD) despite uncertainty over efficacy.
Objectives: To determine the efficacy of all pharmacological approaches, including monotherapy, augmentation and head-to-head approaches (drug versus drug, drug versus psychotherapy), in reducing PTSD symptom severity.
Method: A systematic review and meta-analysis of randomised controlled trials were undertaken; 115 studies were included.
Results: Selective serotonin reuptake inhibitors (SSRIs) were found to be statistically superior to placebo in reduction of PTSD symptoms but the effect size was small (standardised mean difference −0.28, 95% CI −0.39 to −0.17). For individual monotherapy agents compared to placebo in two or more studies, we found small statistically significant evidence for the antidepressants fluoxetine, paroxetine, sertraline, venlafaxine and the antipsychotic quetiapine. For pharmacological augmentation, we found small statistically significant evidence for prazosin and risperidone.
Conclusions: Some medications have a small positive effect on reducing PTSD symptom severity and can be considered as potential monotherapy treatments; these include fluoxetine, paroxetine, sertraline, venlafaxine and quetiapine. Two medications, prazosin and risperidone, also have a small positive effect when used to augment pharmacological monotherapy. There was no evidence of superiority for one intervention over another in the small number of head-to-head comparison studies.
* Our review found evidence of a small positive effect for a handful of medications, which can reduce the symptom severity in post-traumatic stress disorder. * These were fluoxetine, paroxetine, sertraline, venlafaxine and the antipsychotic quetiapine when used as monotherapy, prazosin and risperidone for augmentation.
Journal Article
Preverbal Infants’ Sensitivity to Synaesthetic Cross-Modality Correspondences
Stimulation of one sensory modality can induce perceptual experiences in another modality that reflect synaesthetic correspondences among different dimensions of sensory experience. In visual-hearing synaesthesia, for example, higher pitched sounds induce visual images that are brighter, smaller, higher in space, and sharper than those induced by lower pitched sounds. Claims that neonatal perception is synaesthetic imply that such correspondences are an unlearned aspect of perception. To date, the youngest children in whom such correspondences have been confirmed with any certainty were 2- to 3-year-olds. We examined preferential looking to assess 3- to 4-month-old preverbal infants’ sensitivity to the correspondences linking auditory pitch to visuospatial height and visual sharpness. The infants looked longer at a changing visual display when this was accompanied by a sound whose changing pitch was congruent, rather than incongruent, with these correspondences. This is the strongest indication to date that synaesthetic cross-modality correspondences are an unlearned aspect of perception.
Journal Article
Pharmacological-assisted Psychotherapy for Post Traumatic Stress Disorder: a systematic review and meta-analysis
Background: Pharmacological-assisted psychotherapies, using conventional and novel drug agents, are increasingly being used both in clinical and experimental research settings, respectively.
Objective: To determine the efficacy of conventional and novel pharmacological-assisted psychotherapies in reducing PTSD symptom severity.
Method: A systematic review and meta-analysis of randomised-controlled trials were undertaken; 21 studies were included.
Results: MDMA-assisted therapy was found to statistically superior to active and inactive placebo-assisted therapy in reduction of PTSD symptoms (standardised mean difference −1.09, 95% CI −1.60 to −0.58). There was no evidence of superiority over placebo for any other intervention.
Conclusions: MDMA-assisted therapy demonstrated an impressive effect size; however, it is difficult to have confidence at this stage in this intervention due to the small numbers of participants included, and more research in this area is needed. There was no evidence to support the efficacy of any other drug-assisted interventions.
We found that MDMA-assisted therapy is a novel and promising new treatment for severe PTSD.
Despite demonstrating an impressive effect size, more research is needed due to the small numbers of participants included.
We did not find evidence to recommend any other drug-assisted psychological intervention.
Journal Article
How ambulance commanders manage a mass casualty incident
PurposeMass casualty incidents are characterised by an immediate, unforeseen and unquantifiable surge in demand for ambulance services which soon becomes apparent and will exceed any “local” resources available. Casualties require the correct treatment, promptly, at an appropriate resource without incurring any further harm. In the absence of firm operational guidelines, this paper provides templates for ambulance commanders both at call centre and on-site to approach the management of mass casualty incidents.Design/methodology/approachDesk research indicated that there were both guidelines on how various elements of the emergency services should work together plus academic papers on techniques to adopt in mass casualty situations. Standing orders or written protocols for ambulance commanders, however, provide little or no specific guidance or an outline plan upon how they should command in a mass casualty situation. Following analysis of relevant public enquiry reports and discussions with ambulance commanders and using the materials from desk research, a four-stage approach was devised for testing using retrospective analysis from field and desktop exercises.FindingsTo have confidence, each commander needs simple digital real-time templates from which they understand their role and how the overall plan defines priorities with the greatest need. A plan should cover call-centre and on-site operations including a basic operational checklist from start to finish; resource structure and inter-relationships; sources and availability of resources plus information and control procedures to impose limited quality control procedures.Originality/valueThe design and implementation of digital templates to provide minute-by-minute visibility to all commanders which have not been recorded before. Such templates give commanders confidence to determine, locate and call forward relevant resources to attend casualties in order of priority of need. Time-lapsed records are useful not just in the minute-by-minute decision processes but also for critical organisational learning and in any post-event review by either a coroner or lawyers at a public enquiry.
Journal Article
The Effects of Auditory Information on 4-Month-Old Infants' Perception of Trajectory Continuity
Young infants perceive an object's trajectory as continuous across occlusion provided the temporal or spatial gap in perception is small. In 3 experiments involving 72 participants the authors investigated the effects of different forms of auditory information on 4-month-olds' perception of trajectory continuity. Provision of dynamic auditory information about the object's trajectory enhanced perception of trajectory continuity. However, a smaller positive effect was also obtained when the sound was continuous but provided no information about the object's location. Finally, providing discontinuous auditory information or auditory information that was dislocated relative to vision had negative effects on trajectory perception. These results are discussed relative to the intersensory redundancy hypothesis and emphasize the need to take an intersensory approach to infant perception.
Journal Article
Reflections on an NHS ambulance service trust bidding for non-emergency patient transport services
PurposeAmbulance service trusts in England have historically had little or no competition for non-emergency patient transport services (NEPTS), but following the imposition of the NHS Procurement, Patient Choice and Competition (PPCC) Regulation (Number 2) 2013, NHS commissioners could accept suitable bids for NEPTS work from third-party commercial competition. This paper describes how NEPTS evolved in England and how an Ambulance Service Trust Board had to step-up their approach to bidding for NHS NEPTS work and to protect their brand and financial position in a competitive commercial market place.Design/methodology/approachThe Trust Board developed a competitive bidding strategy with a market research project using “grounded theory” to identify and categorise stakeholders' issues followed by re-engineering to achieve new operational goals. A fundamental element of the bid was an opportunity to share patient information between local NHS facilities using a common access data warehouse. This would represent a serious barrier to entry to any third-party non-NHS commercial competitor.FindingsKey projects were identified in the bidding process, including relocation of NEPTS resource bases, use of third-party resources and the establishment of a local NHS-wide data warehouse. They were all self-financing within the contract period and accepted by the commissioners. However, the establishment of NEPTS hubs at hospitals with clinics scattered throughout their grounds was rejected by the commissioners due to incompatibility with existing hospital practices.Originality/valueThis case study defines the challenges and opportunities faced by an English Ambulance Service Trust Board when responding to an invitation to tender (ITT) from NHS commissioners for NEPTS and competing with third-parties on a commercial basis. Any emergency service would face similar challenges bidding for work in a competitive environment.
Journal Article