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1.
Health Justice ; 12(1): 10, 2024 Feb 27.
Artículo en Inglés | MEDLINE | ID: mdl-38411785

RESUMEN

BACKGROUND: The mortality rate among people under probation supervision in the community is greater than that among incarcerated people and that among the general population. However, there is limited research on the distinct vulnerabilities and risks underlying the causes of death in this population. In this retrospective cohort study, we examined the individual and criminal justice-related factors associated with different causes of death. Factors were assessed in relation to the type of supervision, distinguishing between those under post-custodial release and those serving a community sentence. RESULTS: The study utilised the official data held by His Majesty's Prison and Probation Service in England and Wales on the deaths of men and women under probation supervision between 01 April 2019 and 31 March 2021 where the cause of death had been definitively recorded (n = 1770). The high risk of deaths primarily caused by external factors (i.e., suspected suicide (10%), homicide (5%), and drug-related death (26%)) in this population was confirmed. A Gaussian Graphical Model (GGM) demonstrated unique relationships with suspected suicide and drug-related deaths for known suicide risk, history of drug use and recent (< 28 days of death) enforcement action due to a breach of probation conditions. Our findings suggest that that familial violence and abuse may be relevant in suicide and drug-related deaths and that minority groups may experience disproportional risk to certain types of death. CONCLUSIONS: This study identified unique risk indicators and modifiable factors for deaths primarily caused by external factors in this population within the health and justice spheres. It emphasised the importance of addressing health inequalities in this population and improved joint-working across health and justice. This involves ensuring that research, policies, training, and services are responsive to the complex needs of those under probation supervision, including those serving community sentences. Only then can we hope to see lower rates of death within this population.

2.
Accid Anal Prev ; 195: 107390, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37995527

RESUMEN

The use of e-scooters is rapidly increasing in cities, leading to their integration into the transportation system. However, numerous collisions involving e-scooters, including some resulting in fatalities, have been reported since their introduction. These incidents indicate that the potential dangers posed by e-scooters may be underestimated. Research suggests that a significant factor contributing to these collisions is the prevalence of illegal riding behaviour exhibited by many riders. This paper presents three studies that aimed to assess the understanding of e-scooter riders and non-riders of the current legislation across various riding scenarios and link it to their profile, riding habits, and their proneness to engage in illegal riding behaviours. Study 1 utilised questionnaires to survey participants and gather information about their profiles and self-reported illegal riding behaviour. Study 2 focused on assessing participants' knowledge of the current e-scooter legislation through different everyday riding scenarios. Study 3 featured short video clips from the rider's perspective to determine the proneness of participants to engage in illegal riding behaviour and explore the potential relationship between these behaviours and their understanding of e-scooter rules. The findings revealed that e-scooter riders were generally younger and exhibited a higher propensity for engaging in illegal riding behaviour than non-users. Both groups demonstrated limited knowledge regarding various aspects of the current e-scooter legislation, particularly related to parking, speeding, and designated infrastructure. While e-scooter riders demonstrated relatively greater knowledge of the e-scooter rules, this was not consistently observed across all areas, particularly in relation to riding on pavements (pedestrian footpaths). Furthermore, Study 3 revealed that participants with better knowledge of the current legislation were less likely to engage in illegal riding behaviour. These findings suggest a need for targeted interventions and educational campaigns to improve riders' understanding of regulations and promote safer riding practices. Implementing training programs for e-scooter safety could significantly enhance riders' awareness of the associated dangers, fostering responsible e-scooter use.


Asunto(s)
Accidentes de Tránsito , Humanos , Encuestas y Cuestionarios , Ciudades , Autoinforme
3.
Crisis ; 44(5): 433-441, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36537105

RESUMEN

Background: Suicide is a leading cause of death worldwide, and childhood trauma has been found to be an important risk factor. However, the mechanisms linking trauma to suicide risk remain unclear. Aims: The current registered report sought to (1) investigate whether childhood trauma and its subtypes were related to suicide risk in adulthood and (2) explore the potential mechanisms associating childhood trauma with suicide and well-being, especially executive functioning, impulsivity, and stress. Method: A cross-sectional survey of 457 individuals who reported experiencing suicide ideation in the past 12 months. Results: Childhood trauma and its subtypes were associated with an increased risk of reporting recent suicide thoughts, COVID-19-related suicide attempts, and recent suicide attempts. There were also significant indirect effects of childhood trauma on recent suicide ideation and well-being through executive functioning and impulsivity. Conclusion: These findings show that childhood trauma is associated with suicide risk in adulthood and suggest that poorer executive functioning and higher levels of impulsivity contribute to this increased risk. These results have implications for the development of future interventions to reduce suicide vulnerability.


Asunto(s)
Experiencias Adversas de la Infancia , COVID-19 , Humanos , Estudios Transversales , Ideación Suicida , Intento de Suicidio , Factores de Riesgo
4.
Br J Psychol ; 113(4): 1143-1163, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35735658

RESUMEN

Vignette methods are widely used in psychology and the social sciences to obtain responses to multi-dimensional scenarios or situations. Where quantitative data are collected this presents challenges to the selection of an appropriate statistical model. This depends on subtle details of the design and allocation of vignettes to participants. A key distinction is between factorial survey experiments where each participant receives a different allocation of vignettes from the full universe of possible vignettes and experimental vignette studies where this restriction is relaxed. The former leads to nested designs with a single random factor and the latter to designs with two crossed random factors. In addition, the allocation of vignettes to participants may lead to fractional or unbalanced designs and a consequent loss of efficiency or aliasing of the effects of interest. Many vignette studies (including some factorial survey experiments) include unmodeled heterogeneity between vignettes leading to potentially serious problems if traditional regression approaches are adopted. These issues are reviewed and recommendations are made for the efficient design of vignette studies including the allocation of vignettes to participants. Multilevel models are proposed as a general approach to handling nested and crossed designs including unbalanced and fractional designs. This is illustrated with a small vignette data set looking at judgements of online and offline bullying and harassment.


Asunto(s)
Juicio , Modelos Estadísticos , Humanos , Encuestas y Cuestionarios
5.
J Genet Psychol ; 183(1): 40-53, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34844522

RESUMEN

Disclosing experiences of cybervictimization is an important first step in many anti-bullying interventions. Gender, age, cybervictimization experiences, cyberbullying behaviors, and time spent online were examined as factors that describe: (a) disclosing cybervictimization and (b) perceptions of helpfulness following disclosure. The sample comprised 750 (384 boys and 365 girls, Mage = 12.57 years, SDage = 1.25 years) 11- to 15-year-olds recruited from two schools. Participants completed self-report measures of cybervictimization experiences, cyberbullying behaviors, intent to disclose cybervictimization, who they thought would be helpful following disclosing cybervictimization, and technology use. Over 88% of the sample reported that they would disclose cybervictimization. Girls and those experiencing low levels of cybervictimization reported they would disclose cybervictimization. Those who were older, and girls reported that they thought friends would be helpful following a disclosure of cybervictimization, whereas those who were younger reported that parents and the police would be helpful. A Gaussian graphical model was used to further explore perceptions of helpfulness following disclosure of cybervictimization and highlighted a complex pattern between targets. The findings add to the growing evidence of the complexity around adolescents' propensity to disclose experiences of cybervictimization which has implications for anti-bullying interventions.


Asunto(s)
Acoso Escolar , Víctimas de Crimen , Ciberacoso , Adolescente , Niño , Revelación , Femenino , Humanos , Lactante , Masculino , Instituciones Académicas
6.
Br J Psychol ; 112(4): 964-991, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33760225

RESUMEN

Unfamiliar simultaneous face matching is error prone. Reducing incorrect identification decisions will positively benefit forensic and security contexts. The absence of view-independent information in static images likely contributes to the difficulty of unfamiliar face matching. We tested whether a novel interactive viewing procedure that provides the user with 3D structural information as they rotate a facial image to different orientations would improve face matching accuracy. We tested the performance of 'typical' (Experiment 1) and 'superior' (Experiment 2) face recognizers, comparing their performance using high-quality (Experiment 3) and pixelated (Experiment 4) Facebook profile images. In each trial, participants responded whether two images featured the same person with one of these images being either a static face, a video providing orientation information, or an interactive image. Taken together, the results show that fluid orientation information and interactivity prompt shifts in criterion and support matching performance. Because typical and superior face recognizers both benefited from the structural information provided by the novel viewing procedures, our results point to qualitatively similar reliance on pictorial encoding in these groups. This also suggests that interactive viewing tools can be valuable in assisting face matching in high-performing practitioner groups.


Asunto(s)
Reconocimiento Facial , Cara , Humanos
7.
Accid Anal Prev ; 149: 105847, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33220607

RESUMEN

A new hazard test was created using high-fidelity computer animation containing ten hazards. Sixty learner drivers and sixty experienced drivers sat either a hazard-perception version of this test (requiring timed responses to materialized hazards) or a hazard-prediction variant of the test (where the screen is occluded as the hazard begins to appear and drivers are asked 'What happens next?'). Recent studies have demonstrated that the prediction test format outperforms the hazard perception format using naturalistic video, but there has not yet been a study replicating this effect with computer-animated materials similar to the quality of those used in the official UK hazard perception test. The new test also included eleven theory questions designed to probe drivers' knowledge of the rules of the road. The results demonstrated that both test variants differentiated between driver groups with considerable effect sizes. Theory-question scores were comparable across learner and experienced driver groups, reflecting learners' preparation for the test and possible issues with memory decay and overwriting in the experienced group. As an interesting aside, driving-related video game play negatively correlated with hazard perception performance, but not with hazard prediction scores. Some individual hazards better suited the prediction or perception test format, raising the possibility of a future hybrid test that combines the two approaches.


Asunto(s)
Accidentes de Tránsito , Conducción de Automóvil , Percepción , Tiempo de Reacción , Accidentes de Tránsito/prevención & control , Humanos , Conocimiento , Memoria
8.
Artículo en Inglés | MEDLINE | ID: mdl-32987798

RESUMEN

Psychosocial hazards in mental healthcare contribute to the development of compassion fatigue in mental health professionals. Compassion fatigue has a negative impact on the mental health and wellbeing of professionals that can impair the quality of services provided to clients. The majority of research on compassion fatigue has focused on individual-level variables such as gender, history of trauma and age, among others. It is also imperative to understand the role played by alterable work-related characteristics in contributing to the development of compassion fatigue in order to attenuate its impact on mental health professionals and their clients. The present review examined articles exploring work-related factors associated with compassion fatigue. Fifteen quantitative studies were included and their quality was assessed using a checklist. An inductive content-analysis approach was adopted to synthesise the themes emerging from the data. The results suggested a theoretical model consistent with the Job Demands-Resources model, wherein job demands (such as workplace trauma, workload and therapeutic settings) are associated with compassion fatigue, and job resources (such as supervisors', coworkers' and organisational support) mitigate the impact of job demands. In addition to person-oriented factors, work-related factors are critical for the prevention of compassion fatigue.


Asunto(s)
Agotamiento Profesional , Desgaste por Empatía , Niño , Desgaste por Empatía/epidemiología , Femenino , Personal de Salud , Humanos , Satisfacción en el Trabajo , Masculino , Salud Mental , Calidad de Vida , Encuestas y Cuestionarios , Lugar de Trabajo
9.
Eur J Public Health ; 30(3): 595-600, 2020 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-31711154

RESUMEN

BACKGROUND: Service centres for homeless adults are potential settings for implementation of reintegration interventions. This study aimed to evaluate (i) the acceptability of a group-based programme among individuals from the broad population of homeless people and (ii) if a future study of its feasibility and acceptability for re-housed homeless people is warranted. METHODS: Recruiting participants and intervention facilitators from partnering service centres was thought to improve recruitment and retention, cost-effectiveness and social interactions compared to professional-led interventions. Seven adults with experience of homelessness (three females, four males, mean age 39 years, range 18-63) were recruited to participate in the intervention. The research protocol comprised completion pre/post of scales [Recovering Quality of Life questionnaire; Working Alliance Inventory-short form revised (WAI-SR)] and focus groups, and WAI-SR and focus groups after sessions 3 and 6. RESULTS: The intervention and research protocols were feasible, with all participants engaging in all sessions, completing all scales and attending all focus groups. The quantitative data demonstrated the feasibility of obtaining practically useful measures of relevant outcomes. In the four focus groups, the intervention received very favourable feedback. CONCLUSIONS: This study demonstrated initial feasibility and acceptability of an intervention that places minimal burden on infrastructure and promotes user autonomy. This is an important advance as there is increasing recognition that the challenge of reintegration is as much a psychological and social problem as a housing problem. If effective, this style of intervention may serve as a template for future interventions with similar populations.


Asunto(s)
Personas con Mala Vivienda , Calidad de Vida , Adolescente , Adulto , Estudios de Factibilidad , Femenino , Vivienda , Humanos , Masculino , Persona de Mediana Edad , Problemas Sociales , Adulto Joven
10.
J Exp Psychol Learn Mem Cogn ; 45(11): 1983-2009, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30702314

RESUMEN

Response onset latencies for sentences that start with a conjoined noun phrase are typically longer than for sentences starting with a simple noun phrase. This suggests that advance planning has phrasal scope, which may or may not be lexically driven. All previous studies have involved spoken production, leaving open the possibility that effects are, in part, modality-specific. In 3 image-description experiments (Ns = 32) subjects produced sentences with conjoined (e.g., Peter and the hat) and simple initial noun phrases (e.g., Peter) in both speech and writing. Production onset latencies and participants' eye movements were recorded. Ease of lexical retrieval of sentences' second noun was assessed by manipulating codability (Experiment 1) and by gaze-contingent name priming (Experiments 2 and 3). Findings confirmed a modality-independent phrasal scope for advance planning but did not support obligatory lexical retrieval beyond the sentence-initial noun. This research represents the first direct experimental comparison of sentence planning in speech and writing. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Asunto(s)
Función Ejecutiva/fisiología , Psicolingüística , Habla/fisiología , Escritura , Adolescente , Adulto , Medidas del Movimiento Ocular , Femenino , Humanos , Masculino , Adulto Joven
11.
Accid Anal Prev ; 122: 268-286, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30391703

RESUMEN

Hazard perception (HP) is the ability to spot on-road hazards in time to avoid a collision. This skill is traditionally measured by recording response times to hazards in video clips of driving, with safer, experienced drivers often out-performing inexperienced drivers. This study assessed whether HP test performance is culturally specific by comparing Chinese, Spanish and UK drivers who watched clips filmed in all three countries. Two test-variants were created: a traditional HP test (requiring timed hazard responses), and a hazard prediction test, where the film is occluded at hazard-onset and participants predict what happens next. More than 300 participants, across the 3 countries, were divided into experienced and inexperienced-driver groups. The traditional HP test did not discriminate between experienced and inexperienced drivers, though participant nationality influenced the results with UK drivers reporting more hazards than Chinese drivers. The hazard prediction test, however, found experienced drivers to out-perform inexperienced drivers. No differences were found for nationality, with all nationalities being equally skilled at predicting hazards. The results suggest that drivers' criterion level for responding to hazards is culturally sensitive, though their ability to predict hazards is not. We argue that the more robust, culturally-agnostic, hazard prediction test appears better suited for global export.


Asunto(s)
Conducción de Automóvil/educación , Comparación Transcultural , Percepción/fisiología , Accidentes de Tránsito/prevención & control , Adulto , China , Femenino , Humanos , Masculino , Tiempo de Reacción , España , Reino Unido
12.
Q J Exp Psychol (Hove) ; 71(2): 424-434, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27784196

RESUMEN

Voices and static faces can be matched for identity above chance level. No previous face-voice matching experiments have included an inter-stimulus interval (ISI) exceeding 1 s. We tested whether accurate identity decisions rely on high-quality perceptual representations temporarily stored in sensory memory, and therefore whether the ability to make accurate matching decisions diminishes as the ISI increases. In each trial, participants had to decide whether an unfamiliar face and voice belonged to the same person. The face and voice stimuli were presented simultaneously in Experiment 1, and there was a 5-s ISI in Experiment 2, and a 10-s interval in Experiment 3. The results, analysed using multilevel modelling, revealed that static face-voice matching was significantly above chance level only when the stimuli were presented simultaneously (Experiment 1). The overall bias to respond same identity weakened as the interval increased, suggesting that this bias is explained by temporal contiguity. Taken together, the findings highlight that face-voice matching performance is reliant on comparing fast-decaying, high-quality perceptual representations. The results are discussed in terms of social functioning.


Asunto(s)
Asociación , Cara , Generalización Psicológica/fisiología , Memoria/fisiología , Reconocimiento en Psicología/fisiología , Voz , Estimulación Acústica , Adolescente , Adulto , Sesgo , Femenino , Humanos , Masculino , Estimulación Luminosa , Factores de Tiempo , Adulto Joven
13.
Atten Percept Psychophys ; 78(3): 868-79, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26732264

RESUMEN

Research investigating whether faces and voices share common source identity information has offered contradictory results. Accurate face-voice matching is consistently above chance when the facial stimuli are dynamic, but not when the facial stimuli are static. We tested whether procedural differences might help to account for the previous inconsistencies. In Experiment 1, participants completed a sequential two-alternative forced choice matching task. They either heard a voice and then saw two faces or saw a face and then heard two voices. Face-voice matching was above chance when the facial stimuli were dynamic and articulating, but not when they were static. In Experiment 2, we tested whether matching was more accurate when faces and voices were presented simultaneously. The participants saw two face-voice combinations, presented one after the other. They had to decide which combination was the same identity. As in Experiment 1, only dynamic face-voice matching was above chance. In Experiment 3, participants heard a voice and then saw two static faces presented simultaneously. With this procedure, static face-voice matching was above chance. The overall results, analyzed using multilevel modeling, showed that voices and dynamic articulating faces, as well as voices and static faces, share concordant source identity information. It seems, therefore, that above-chance static face-voice matching is sensitive to the experimental procedure employed. In addition, the inconsistencies in previous research might depend on the specific stimulus sets used; our multilevel modeling analyses show that some people look and sound more similar than others.


Asunto(s)
Conducta de Elección , Cara , Reconocimiento Facial , Voz , Estimulación Acústica , Adolescente , Adulto , Anciano , Percepción Auditiva , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estimulación Luminosa , Adulto Joven
14.
Soc Psychiatry Psychiatr Epidemiol ; 50(2): 183-94, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25178273

RESUMEN

PURPOSE: This article systematically reviews studies of prevalence of childhood experience of physical and sexual abuse in adult people who are homeless in Western countries. METHODS: Medline, PsychInfo, and the Cochrane Library were searched using the keywords: homeless*, child* abuse, child* trauma, and child* adversity and the bibliographies of identified articles were reviewed. Sources of heterogeneity in the prevalence rates were explored by meta-regression analysis. RESULTS: Twenty-four reports published between January 1990 and August 2013 in three countries provided estimates obtained from up to 9,730 adult individuals who were homeless. Prevalence of reported childhood physical abuse ranged from 6 to 94% with average prevalence of 37%, 95% CI [25, 51]. Reported sexual abuse ranged from 4 to 62%, with average prevalence estimated as 32%, 95% CI [23, 44] for female and 10% for male, 95% CI [6, 17]. Substantial heterogeneity was observed among the studies (I2 ≥ 98%). Including moderators greatly reduced but did not eliminate this heterogeneity. Moderator analyses suggested that reported physical abuse tended to be higher for predominately white samples and tended to be lower for younger samples. Sexual abuse was far more prevalent in predominately female samples and slightly higher in non-US samples and convenience samples. CONCLUSIONS: The findings of this study suggest that childhood physical and sexual abuse is more prevalent among the homeless in Western countries than in the global population. Physical abuse appears to be particularly prevalent in younger samples and sexual abuse rates are higher in predominately female samples. Further investigation is needed to advance our understanding of how trauma informed treatment and care for the homeless effectively can take into account the service user's experiences of childhood abuse.


Asunto(s)
Adultos Sobrevivientes del Maltrato a los Niños/estadística & datos numéricos , Maltrato a los Niños/estadística & datos numéricos , Personas con Mala Vivienda/estadística & datos numéricos , Adulto , Niño , Abuso Sexual Infantil/estadística & datos numéricos , Femenino , Humanos , Masculino , Prevalencia , Mundo Occidental
16.
Br J Psychol ; 105(3): 399-412, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24844115

RESUMEN

Coefficient alpha is the most popular measure of reliability (and certainly of internal consistency reliability) reported in psychological research. This is noteworthy given the numerous deficiencies of coefficient alpha documented in the psychometric literature. This mismatch between theory and practice appears to arise partly because users of psychological scales are unfamiliar with the psychometric literature on coefficient alpha and partly because alternatives to alpha are not widely known. We present a brief review of the psychometric literature on coefficient alpha, followed by a practical alternative in the form of coefficient omega. To facilitate the shift from alpha to omega, we also present a brief guide to the calculation of point and interval estimates of omega using a free, open source software environment.


Asunto(s)
Interpretación Estadística de Datos , Psicometría/normas , Humanos , Psicometría/métodos , Reproducibilidad de los Resultados
17.
Arch Sex Behav ; 42(5): 805-11, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23358855

RESUMEN

In human mate choice, sexually dimorphic faces and voices comprise hormone-mediated cues that purportedly develop as an indicator of mate quality or the ability to compete with same-sex rivals. If preferences for faces communicate the same biologically relevant information as do voices, then ratings of these cues should correlate. Sixty participants (30 male and 30 female) rated a series of opposite-sex faces, voices, and faces together with voices for attractiveness in a repeated measures computer-based experiment. The effects of face and voice attractiveness on face-voice compound stimuli were analyzed using a multilevel model. Faces contributed proportionally more than voices to ratings of face-voice compound attractiveness. Faces and voices positively and independently contributed to the attractiveness of male compound stimuli although there was no significant correlation between their rated attractiveness. A positive interaction and correlation between attractiveness was shown for faces and voices in relation to the attractiveness of female compound stimuli. Rather than providing a better estimate of a single characteristic, male faces and voices may instead communicate independent information that, in turn, provides a female with a better assessment of overall mate quality. Conversely, female faces and voices together provide males with a more accurate assessment of a single dimension of mate quality.


Asunto(s)
Belleza , Cara , Percepción , Parejas Sexuales , Voz , Adolescente , Adulto , Conducta de Elección , Señales (Psicología) , Femenino , Humanos , Masculino , Estimulación Luminosa
18.
Br J Math Stat Psychol ; 66(1): 1-7, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23330865

RESUMEN

Within the last few years, Bayesian methods of data analysis in psychology have proliferated. In this paper, we briefly review the history or the Bayesian approach to statistics, and consider the implications that Bayesian methods have for the theory and practice of data analysis in psychology.


Asunto(s)
Teorema de Bayes , Interpretación Estadística de Datos , Psicología/estadística & datos numéricos , Psicometría/estadística & datos numéricos , Predicción , Humanos , Cómputos Matemáticos , Modelos Estadísticos , Publicaciones Periódicas como Asunto/estadística & datos numéricos , Publicaciones Periódicas como Asunto/tendencias , Psicología/tendencias , Psicometría/tendencias , Edición/estadística & datos numéricos , Edición/tendencias , Reino Unido
19.
Memory ; 21(4): 512-23, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23198933

RESUMEN

There is growing literature exploring the possibility of parallel retrieval of location memories, although this literature focuses primarily on the speed of retrieval with little attention to the accuracy of location memory recall. Baguley, Lansdale, Lines, and Parkin (2006) found that when a person has two or more memories for an object's location, their recall accuracy suggests that only one representation can be retrieved at a time (exclusivity). This finding is counterintuitive given evidence of non-exclusive recall in the wider memory literature. The current experiment explored the exclusivity effect further and aimed to promote an alternative outcome (i.e., independence or superadditivity) by encouraging the participants to combine multiple representations of space at encoding or retrieval. This was encouraged by using anchor (points of reference) labels that could be combined to form a single strongly associated combination. It was hypothesised that the ability to combine the anchor labels would allow the two representations to be retrieved concurrently, generating higher levels of recall accuracy. The results demonstrate further support for the exclusivity hypothesis, showing no significant improvement in recall accuracy when there are multiple representations of a target object's location as compared to a single representation.


Asunto(s)
Memoria/fisiología , Algoritmos , Señales (Psicología) , Femenino , Humanos , Masculino , Recuerdo Mental/fisiología , Método de Montecarlo , Orientación , Estimulación Luminosa , Desempeño Psicomotor/fisiología , Percepción Espacial , Adulto Joven
20.
Behav Res Methods ; 44(1): 158-75, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21858605

RESUMEN

The psychological and statistical literature contains several proposals for calculating and plotting confidence intervals (CIs) for within-subjects (repeated measures) ANOVA designs. A key distinction is between intervals supporting inference about patterns of means (and differences between pairs of means, in particular) and those supporting inferences about individual means. In this report, it is argued that CIs for the former are best accomplished by adapting intervals proposed by Cousineau (Tutorials in Quantitative Methods for Psychology, 1, 42-45, 2005) and Morey (Tutorials in Quantitative Methods for Psychology, 4, 61-64, 2008) so that nonoverlapping CIs for individual means correspond to a confidence for their difference that does not include zero. CIs for the latter can be accomplished by fitting a multilevel model. In situations in which both types of inference are of interest, the use of a two-tiered CI is recommended. Free, open-source, cross-platform software for such interval estimates and plots (and for some common alternatives) is provided in the form of R functions for one-way within-subjects and two-way mixed ANOVA designs. These functions provide an easy-to-use solution to the difficult problem of calculating and displaying within-subjects CIs.


Asunto(s)
Análisis de Varianza , Intervalos de Confianza , Proyectos de Investigación , Modelos Psicológicos
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