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1.
Psychol Rep ; : 332941231219788, 2023 Nov 30.
Article in English | MEDLINE | ID: mdl-38032051

ABSTRACT

The Covid-19 pandemic has resulted in widespread anxiety, fear and depression, yet focussing only on these negative issues may obscure the opportunity to promote positivity and resilience. Traumatic events can often result in positive life changes (adversarial growth) though there is little evidence in the context of pandemics, and no previous studies in Covid-19 with the general public. The present research investigated whether adversarial growth was perceived in Covid-19 and whether this could account for variance in wellbeing, over and above effects of personality traits. Participants recruited from the UK public (N = 183) completed the Big Five Personality Inventory, the WHO-5 Wellbeing Scale and the Silver Lining Questionnaire (SLQ) measure of adversarial growth. Questionnaires were completed online, at two timepoints, nine months apart. At Time 1, wellbeing was negatively associated with trait Neuroticism and positively associated with Openness to experience. Both associations were positively mediated by SLQ score. At Time 2, SLQ score again mediated the effects of Openness on wellbeing, and also the influence of wellbeing at Time 1 on that at Time 2. Reported Silver Linings included strengthened personal relationships at Time 1, and improved ability to handle life events at Time 2. This suggests a shift from an appreciation of relationships to an awareness of personal development once life returned to some semblance of normality. Overall, results suggest that perceived adversarial growth supported wellbeing during the pandemic and highlight a focus for therapeutic intervention.

2.
ERJ Open Res ; 9(6)2023 Nov.
Article in English | MEDLINE | ID: mdl-38020570

ABSTRACT

Background: Vaccination is vital for achieving population immunity to severe acute respiratory syndrome coronavirus 2, but vaccination hesitancy presents a threat to achieving widespread immunity. Vaccine acceptance in chronic potentially immunosuppressed patients is largely unclear, especially in patients with asthma. The aim of this study was to investigate the vaccination experience in people with severe asthma. Methods: Questionnaires about vaccination beliefs (including the Vaccination Attitudes Examination (VAX) scale, a measure of vaccination hesitancy-related beliefs), vaccination side-effects, asthma control and overall safety perceptions following coronavirus disease 2019 (COVID-19) vaccination were sent to patients with severe asthma in 12 European countries between May and June 2021. Results: 660 participants returned completed questionnaires (87.4% response rate). Of these, 88% stated that they had been, or intended to be, vaccinated, 9.5% were undecided/hesitant and 3% had refused vaccination. Patients who hesitated or refused vaccination had more negative beliefs towards vaccination. Most patients reported mild (48.2%) or no side-effects (43.8%). Patients reporting severe side-effects (5.7%) had more negative beliefs. Most patients (88.8%) reported no change in asthma symptoms after vaccination, while 2.4% reported an improvement, 5.3% a slight deterioration and 1.2% a considerable deterioration. Almost all vaccinated (98%) patients would recommend vaccination to other severe asthma patients. Conclusions: Uptake of vaccination in patients with severe asthma in Europe was high, with a small minority refusing vaccination. Beliefs predicted vaccination behaviour and side-effects. Vaccination had little impact on asthma control. Our findings in people with severe asthma support the broad message that COVID-19 vaccination is safe and well tolerated.

3.
Psychol Health Med ; 28(8): 2073-2083, 2023.
Article in English | MEDLINE | ID: mdl-36544329

ABSTRACT

Poor adult health has consistently been associated with Adverse Childhood Experiences (ACEs). The process is not fully understood but is likely to involve a complex interaction of biological and psychosocial factors. Early life stress can affect the developing brain resulting in long-term hyper-responses to stress and raised inflammatory biomarkers. Women with fibromyalgia syndrome (FMS) frequently report ACEs and also self-sacrificial behaviours whereby they repress their own needs and emotions to preserve personal relationships. This behavioural profile (termed self-silencing) may develop following ACEs but has not previously been considered in the context of FMS. This study examined whether self-silencing mediates the link between ACEs and FMS symptoms. Women with (N = 539) and without (N = 184) an FMS diagnosis completed measures of Silencing-the-Self, health symptoms and ACEs. Number of ACEs and symptom levels were significantly associated in both groups. One aspect of self-silencing, care and self-sacrifice (putting others needs before your own) mediated the association between ACEs and symptoms in the FMS group only. Externalised self-perception (judging oneself according to perceived external standards) was negatively associated with symptoms but presented no mediating effects. Results present preliminary new information to explain the association between ACEs and FMS. Recognition of the factors which underlie symptomology is important in understanding the condition and supporting patients.

4.
Psychol Health ; 38(10): 1345-1360, 2023.
Article in English | MEDLINE | ID: mdl-34903135

ABSTRACT

OBJECTIVE: Fibromyalgia syndrome (FMS) is a chronic condition with symptoms known to be exacerbated by stress. Individuals with FMS may be experiencing particular distress under Covid-19 pandemic-related lifestyle restrictions. The present study examined wellbeing, perceived symptom change and coping in individuals with and without FMS during pandemic-related social lockdown in the UK. DESIGN: Participants with a diagnosis of FMS (N = 390) and a general public sample with no FMS (N = 151) completed questionnaires at three time points. MAIN OUTCOME MEASURES: BBC Wellbeing Scale, Cognitive-Emotional Regulation Questionnaire measure of coping, perception of extent to which symptoms have worsened or improved over time. RESULTS: Contrary to expectations, FMS participants reported no worsening of symptoms and an increase in wellbeing over the study period. Non-FMS participants experienced worsening health symptoms and no change in wellbeing. Coping strategies involving positive reappraisal, refocussing and planning were positively associated with wellbeing in the FMS group. CONCLUSION: The unpredictable symptom profile in FMS, and the regular readjustment this necessitates, may support a form of resilience which has been adaptive during the pandemic. The results have implications for supporting people with FMS, and potentially other chronic conditions, especially at times of stress.

5.
PLoS One ; 17(5): e0268191, 2022.
Article in English | MEDLINE | ID: mdl-35522625

ABSTRACT

Assessing levels of aggression-specifically reactive violence-has been a challenge in the past, since individuals might be reluctant to self-report aggressive tendencies. Furthermore, experimental studies often lack ecological validity. Immersive Virtual Reality (IVR) offers a reliable, ethically safe environment, and is the most realistic virtual simulation method currently available. It allows researchers to test participants' aggressive responses to realistic provocations from virtual humans. In the current study, 116 participants completed our IVR aggression task, in which they encountered avatars who would either approach them in a friendly or provocative fashion. Participants had the option either to shake hands or hit the virtual human, in congruent and incongruent trials. In congruent trials, the response required of the participant matched the approach with the avatar (e.g., hitting the avatar after provocation). In incongruent trials there was a mismatch between the avatars approach and the participants required response. Congruent trials were designed to measure the immediate reaction towards the virtual human, and incongruent trials to assess response inhibition. Additionally, participants also completed traditional questionnaire-based measures of aggression, as well as reporting their past violent behaviour. We found that the immediate aggressive responses in the IVR task correlated with the established questionnaire measures (convergent validity), and we found that the IVR task was a stronger predictor of past violent behaviour than traditional measures (discriminant validity). This suggests that IVR might be an effective way to assess aggressive behaviour in a more indirect, but realistic manner, than current questionnaire assessment.


Subject(s)
Virtual Reality , Computer Simulation , Humans , Surveys and Questionnaires , Violence
6.
ERJ Open Res ; 8(2)2022 Apr.
Article in English | MEDLINE | ID: mdl-35582679

ABSTRACT

Background: The coronavirus disease 2019 (COVID-19) pandemic has put pressure on healthcare services, forcing the reorganisation of traditional care pathways. We investigated how physicians taking care of severe asthma patients in Europe reorganised care, and how these changes affected patient satisfaction, asthma control and future care. Methods: In this European-wide cross-sectional study, patient surveys were sent to patients with a physician-diagnosis of severe asthma, and physician surveys to severe asthma specialists between November 2020 and May 2021. Results: 1101 patients and 268 physicians from 16 European countries contributed to the study. Common physician-reported changes in severe asthma care included use of video/phone consultations (46%), reduced availability of physicians (43%) and change to home-administered biologics (38%). Change to phone/video consultations was reported in 45% of patients, of whom 79% were satisfied or very satisfied with this change. Of 709 patients on biologics, 24% experienced changes in biologic care, of whom 92% were changed to home-administered biologics and of these 62% were satisfied or very satisfied with this change. Only 2% reported worsening asthma symptoms associated with changes in biologic care. Many physicians expect continued implementation of video/phone consultations (41%) and home administration of biologics (52%). Conclusions: Change to video/phone consultations and home administration of biologics was common in severe asthma care during the COVID-19 pandemic and was associated with high satisfaction levels in most but not all cases. Many physicians expect these changes to continue in future severe asthma care, though satisfaction levels may change after the pandemic.

7.
Int J Behav Med ; 29(4): 448-455, 2022 Aug.
Article in English | MEDLINE | ID: mdl-34599463

ABSTRACT

BACKGROUND: Conspiracy beliefs about vaccination along with vaccination hesitancy are threats to achieving population immunity during the SARS-COV-2 (COVID-19) pandemic. This longitudinal study aimed to clarify the association between these and non-monetary incentives to vaccination in the UK. METHOD: Data were collected at three points: (1) before and (2) after the development of a vaccine and (3) after the vaccination programme was underway. At Time 1, participants completed measures of general and COVID-19-specific concerns about vaccination and belief in conspiracy theories. At times 2 and 3, participants reported their intentions whether or not to have the SARS-CoV-2 vaccine. Those who were hesitant provided qualitative comments about what might change their decision. RESULTS: Vaccination hesitancy decreased between times 1 (54%) and 3 (13%). There were small effects of conspiracy beliefs on vaccine hesitancy, but only at time 1. Most concerns and reported incentives were related to safety, although at time 2, incentives included endorsement by trusted public figures. By time 3, only a minority of participants (N = 18) were adamantly against vaccination, stating that nothing would change their minds. CONCLUSION: Vaccination hesitancy declined in the UK during the course of the study. However, concerns about vaccine safety remained and could jeopardise the vaccination programme should any adverse effects be reported. Conspiracy beliefs seem to play only a minor role in hesitancy and may continue to decrease in importance with a successful vaccination programme. Understanding motivations behind vaccination hesitancy is vital if we are to achieve population immunity.


Subject(s)
COVID-19 , Vaccines , COVID-19/prevention & control , COVID-19 Vaccines , Humans , Longitudinal Studies , Pandemics/prevention & control , SARS-CoV-2 , United Kingdom , Vaccination , Vaccination Hesitancy
8.
J Interpers Violence ; 36(23-24): NP13365-NP13390, 2021 12.
Article in English | MEDLINE | ID: mdl-32070190

ABSTRACT

Against the backdrop of an increase in reported hate crimes, we present the development of a U.K.-focussed instrument designed to evaluate the nature of public beliefs about hate crime, legislation, offenders and victims. In Study 1, 438 participants completed an Anglicized version of the Hate Crime Beliefs Scale (HCBS). Factor analyses revealed three subfactors: Denial (high scores represent a denial of hate crime severity and need for legislation), Compassion (high score reflect compassion toward victims and affected communities) and Sentencing (higher scores reflect more punitive attitudes). In Study 2 (N = 134) we show that scores on Denial are positively associated with those on Right-Wing Authoritarianism (RWA) and Social Dominance Orientation (SDO), ideologies known to be associated with prejudice. Compassion was negatively associated with these ideologies. Mediation analyses showed that Big Five personality traits Openness to Experience and Conscientiousness predicted Denial and Compassion via RWA, whereas Agreeableness and Openness predicted scores via SDO, consistent with a dual-process motivation model of hate crime beliefs. Results are discussed in terms of the nature of hate crime beliefs and the importance of understanding public attitudes which may support undesirable social norms and influence jury decision making in trials of hate related offenses.


Subject(s)
Crime Victims , Hate , Attitude , Crime , Humans , Prejudice
9.
Front Psychol ; 11: 566237, 2020.
Article in English | MEDLINE | ID: mdl-33324279

ABSTRACT

Behavioral immune system (BIS) describes psychological mechanisms that detect cues to infectious pathogens in the immediate environment, trigger disease-relevant responses and facilitate behavioral avoidance/escape. BIS activation elicits a perceived vulnerability to disease (PVD) which can result in conformity with social norms. However, a response to superficial cues can result in aversive responses to people that pose no actual threat, leading to an aversion to unfamiliar others, and likelihood of prejudice. Pathogen-neutralizing behaviors, therefore, have implications for social interaction as well as illness behaviors and responses to health communications. In this study, we investigate how PVD influences conformity, attitudes to other people and to lockdown regulations through the lens of the Reinforcement Sensitivity Theory (RST). RST describes personality in terms of biologically-driven approach and avoidance motivations which support personal goals. Participants from the United Kingdom public (N = 605) completed an RST personality questionnaire and then read either (a) coronavirus morbidity-mortality statistics and current United Kingdom government lifestyle regulations, (b) just the regulations (as presented in most government publicity materials), or (c) no information at all. They all completed the Perceived Vulnerability to Disease scale to assess BIS-relevant Germ Aversion and Perceived Infectability, followed by questions measuring social conformity, warmth toward others and attitudes toward lockdown measures. Significantly lower PVD scores were observed in the no-information condition, with the other conditions showing no difference. In terms of RST, approach behaviors related to goal-drive persistence work alongside fear in explaining conformity to social norms. Reward related approach behaviors partially explained warmth toward others, indicating that social rewards gained through interaction continue to be strong drivers of behavior. We found no role for RST traits in attitudes toward lockdown. Overall, coronavirus-related behavior is not driven purely by fear, but also by social and/or protection goals regulated by approach motivation. This study presents new insights into public perceptions of coronavirus and government regulated lifestyle restrictions, helping to explain social behaviors in terms of biologically driven mechanisms. Such understanding is vital if we are to successfully motivate public behavior to constrain spread of the virus.

10.
Br J Health Psychol ; 25(4): 839-848, 2020 11.
Article in English | MEDLINE | ID: mdl-32348015

ABSTRACT

Objectives Public behaviour change is necessary to contain the spread of coronavirus (COVID-19). Based on the reinforcement sensitivity theory (RST) framework, this study presents an examination of individual differences in some relevant psychological factors. Design Cross-sectional psychometric. Methods UK respondents (N = 202) completed a personality questionnaire (RST-PQ), measures of illness attitudes, concerns about the impact of coronavirus on health services and socio-economic infrastructures, personal safety, and likelihood of voluntary self-isolation. Results Respondents most concerned were older, had negative illness attitudes, and scored higher on reward reactivity (RR), indicating the motivation to take positive approach action despite prevailing worry/anxiety. Personal safety concerns were highest in those with negative illness attitudes and higher fight-flight-freeze system (FFFS, reflecting fear/avoidance) scores. Results suggest people are experiencing psychological conflict: between the urge to stay safe (FFFF-related) and the desire to maintain a normal, pleasurable (RR-related) life. Ways of ameliorating conflict may include maladaptive behaviours (panic buying), reflecting reward-related displacement activity. Intended self-isolation related to FFFS, but also low behavioural inhibition system (related to anxiety) scores. Older people reported themselves less likely to self-isolate. Conclusions Interventions need to consider individual differences in psychological factors in behaviour change, and we discuss relevant literature to inform policy makers and communicators. Statement of contribution What is already known on this subject? Reinforcement sensitivity theory (RST) personality systems can influence perception of persuasive health messages. However, there is limited evidence for their direct effects on health concerns and behaviours, and none relating to specific infectious diseases. What does this study add? Reward reactivity (RR) is associated with concern about impact of coronavirus on the NHS and other social infrastructures, indicating the motivation to take positive-approach action despite worry/anxiety. Personal safety concerns are related to fight-flight-freeze system traits (FFFS, reflecting fear/avoidance). Intended self-isolation related to FFFS, but also low behavioural inhibition system (related to anxiety) scores. Older people reported themselves less likely to self-isolate. Results suggest psychological conflict: between the urge to stay safe (FFFF-related) and the desire to maintain a normal, pleasurable life (RR-related). Ways of ameliorating conflict may include maladaptive behaviours (panic buying), reflecting reward-related displacement activity.


Subject(s)
Betacoronavirus , Coronavirus Infections , Intention , Pandemics , Pneumonia, Viral , COVID-19 , Cross-Sectional Studies , Humans , Personality , SARS-CoV-2 , United Kingdom
11.
Br J Educ Psychol ; 90(1): 152-166, 2020 Mar.
Article in English | MEDLINE | ID: mdl-30741407

ABSTRACT

BACKGROUND: Academic dishonesty (AD) is an increasing challenge for universities worldwide. The rise of the Internet has further increased opportunities for students to cheat. AIMS: In this study, we investigate the role of personality traits defined within Reinforcement Sensitivity Theory (RST) as potential determinants of AD. RST defines behaviour as resulting from approach (Reward Interest/reactivity, goal-drive, and Impulsivity) and avoidance (behavioural inhibition and Fight-Flight-Freeze) motivations. We further consider the role of deep, surface, or achieving study motivations in mediating/moderating the relationship between personality and AD. SAMPLE: A sample of UK undergraduates (N = 240). METHOD: All participants completed the RST Personality Questionnaire, a short-form version of the study process questionnaire and a measure of engagement in AD, its perceived prevalence, and seriousness. RESULTS: Results showed that RST traits account for additional variance in AD. Mediation analysis suggested that GDP predicted dishonesty indirectly via a surface study approach while the indirect effect via deep study processes suggested dishonesty was not likely. Likelihood of engagement in AD was positively associated with personality traits reflecting Impulsivity and Fight-Flight-Freeze behaviours. Surface study motivation moderated the Impulsivity effect and achieving motivation the FFFS effect such that cheating was even more likely when high levels of these processes were used. CONCLUSIONS: The findings suggest that motivational personality traits defined within RST can explain variance in the likelihood of engaging in dishonest academic behaviours.


Subject(s)
Academic Success , Deception , Personality/physiology , Social Behavior , Students , Adult , Female , Humans , Male , Psychological Techniques , Reinforcement, Psychology , United Kingdom , Universities , Young Adult
12.
Chronic Dis Transl Med ; 5(2): 129-138, 2019 Jun.
Article in English | MEDLINE | ID: mdl-31367702

ABSTRACT

OBJECTIVES: To describe the extent to which irritable bowel syndrome (IBS), fibromyalgia syndrome (FMS), and chronic fatigue syndrome (CFS) exhibit symptom overlap, and to validate a patient-derived, generic symptom questionnaire. METHODS: A patient-derived 61-item symptom-frequency questionnaire was completed by participants recruited through IBS, FMS and CFS self-help websites. Principal axis factor analysis with oblimin rotation was performed separately for those reporting an IBS, FMS or CFS diagnosis. RESULTS: Questionnaires were completed by 1751 participants of whom 851 reported more than one of the three diagnoses. Stomach pain on at least a weekly basis was reported by 79% of IBS, 52% of FMS, and 43% of CFS single diagnosis participants. Pain increasing the day after activity was reported by 32% of IBS, 94% of FMS, and 85% of CFS single diagnosis participants. Waking still tired at least once weekly was reported by 75% of IBS, 97% of FMS, and 95% of CFS single diagnosis participants. Exploratory factor analysis produced consistent results across all three diagnostic groups, the 61 items loading on 12 correlated factors with a single higher order factor on which all items loaded. Frequency analysis led to the rejection of one item (cold sores on or near lips), and freeform reporting by participants of additional symptoms identified an additional five, namely, restless legs, hair loss/brittle hair/thinning, dizziness/balance problems, blurred vision and urination problems. CONCLUSIONS: IBS, FMS and CFS are polysymptomatic spectrum disorders with a wide range of overlapping symptoms, many of which are unrelated to diagnostic criteria. Frequency analysis and factor analysis confirm the validity of using the same questionnaire across different diagnostic categories. The 65-item general symptom questionnaire (GSQ-65) is a valid generic symptom scale suitable for assessing the many different symptoms of people with IBS, FMS and CFS.

13.
J Ment Health ; 28(6): 640-646, 2019 Dec.
Article in English | MEDLINE | ID: mdl-28857639

ABSTRACT

Background: Self-help groups can have a large impact on individuals well-being and could reduce costs for healthcare services. Previous research supports the effectiveness of self-help groups, but explanations for this are lacking. Identifying the active ingredients which encourage positive change could inform effectiveness of these groups producing the best outcomes for members.Aim: This research investigated how members and facilitators of a borderline personality disorder self-help group (BPD SHG)interacted and made sense of their experiences in group meetings, to determine what aspects of interaction were helpful.Method: Naturalistic data was collected from 10 participants via audio recording and analysed using interpretative phenomenological analysis.Results: Three emergent themes are discussed: humour, praise and experiential knowledge.Conclusion: These are suggested to be active ingredients which are critical for the effectiveness of this BPD SHG, with particular focus on the facilitator's contribution.


Subject(s)
Borderline Personality Disorder/psychology , Borderline Personality Disorder/therapy , Mental Health Recovery , Self-Help Groups , Attitude of Health Personnel , Female , Health Knowledge, Attitudes, Practice , Humans , Male , Qualitative Research , Treatment Outcome
14.
Dyslexia ; 20(4): 330-45, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25195576

ABSTRACT

Effective reasoning is fundamental to problem solving and achievement in education and employment. Protocol studies have previously suggested that people with dyslexia use reasoning strategies based on visual mental representations, whereas non-dyslexics use abstract verbal strategies. This research presents converging evidence from experimental and individual differences perspectives. In Experiment 1, dyslexic and non-dyslexic participants were similarly accurate on reasoning problems, but scores on a measure of visual memory ability only predicted reasoning accuracy for dyslexics. In Experiment 2, a secondary task loaded visual memory resources during concurrent reasoning. Dyslexics were significantly less accurate when reasoning under conditions of high memory load and showed reduced ability to subsequently recall the visual stimuli, suggesting that the memory and reasoning tasks were competing for the same visual cognitive resource. The results are consistent with an explanation based on limitations in the verbal and executive components of working memory in dyslexia and the use of compensatory visual strategies for reasoning. There are implications for cognitive activities that do not readily support visual thinking, whether in education, employment or less formal everyday settings.


Subject(s)
Dyslexia/physiopathology , Dyslexia/psychology , Memory, Short-Term/physiology , Mental Recall/physiology , Pattern Recognition, Visual/physiology , Thinking/physiology , Adaptation, Physiological , Female , Humans , Male , Memory , Problem Solving , Retention, Psychology
15.
Memory ; 21(2): 189-209, 2013.
Article in English | MEDLINE | ID: mdl-22928929

ABSTRACT

Impairments in working memory are suggested to be one of the defining characteristics of dyslexia, and deficits in verbal recall are well documented. However, the situation regarding visuospatial memory is less clear. In a widely used measure, the Corsi blocks task, sequences of visuospatial locations can be recalled forwards, in the order presented (CF), or backwards, in reverse order (CB). Previous research has suggested that, while CF draws on spatial-sequential resources, CB may load executive and distinctly visual processes. While people with dyslexia typically show no deficit on CF, CB is rarely presented. We present three studies which indicate a consistent dyslexic deficit on CB that can be ameliorated by visual strategy instructions. Our data suggest that, without instruction, people with dyslexia are unable to adopt an effective CB strategy and this is consistent with a deficit in executive function. These results have implications for our understanding of visuospatial memory in dyslexia, and also in terms of the administration of the Corsi task to special populations.


Subject(s)
Dyslexia/psychology , Memory, Short-Term , Space Perception , Visual Perception , Case-Control Studies , Female , Humans , Intelligence Tests , Male , Mental Recall , Photic Stimulation
16.
Br J Psychol ; 101(Pt 3): 433-52, 2010 Aug.
Article in English | MEDLINE | ID: mdl-19635180

ABSTRACT

Recent research has suggested that individuals with dyslexia rely on explicit visuospatial representations for syllogistic reasoning while most non-dyslexics opt for an abstract verbal strategy. This paper investigates the role of visual processes in relational reasoning amongst dyslexic reasoners. Expt 1 presents written and verbal protocol evidence to suggest that reasoners with dyslexia generate detailed representations of relational properties and use these to make a visual comparison of objects. Non-dyslexics use a linear array of objects to make a simple transitive inference. Expt 2 examined evidence for the visual-impedance effect which suggests that visual information detracts from reasoning leading to longer latencies and reduced accuracy. While non-dyslexics showed the impedance effects predicted, dyslexics showed only reduced accuracy on problems designed specifically to elicit imagery. Expt 3 presented problems with less semantically and visually rich content. The non-dyslexic group again showed impedance effects, but dyslexics did not. Furthermore, in both studies, visual memory predicted reasoning accuracy for dyslexic participants, but not for non-dyslexics, particularly on problems with highly visual content. The findings are discussed in terms of the importance of visual and semantic processes in reasoning for individuals with dyslexia, and we argue that these processes play a compensatory role, offsetting phonological and verbal memory deficits.


Subject(s)
Dyslexia/physiopathology , Imagination/physiology , Thinking/physiology , Visual Perception/physiology , Adult , Analysis of Variance , Chi-Square Distribution , Female , Humans , Male , Mental Recall/physiology
17.
Br J Psychiatry ; 195(1): 39-45, 2009 Jul.
Article in English | MEDLINE | ID: mdl-19567894

ABSTRACT

BACKGROUND: The short (s) allele of the serotonin transporter gene promoter (5-HTTLPR) may be associated with exposure to social adversities and the subsequent onset of depressive illness in adulthood. AIMS: To test in adolescents at high risk for depression whether the short 's' allele is associated with levels of morning cortisol and the subsequent onset of a depressive episode. METHOD: High-risk adolescents (n = 403) were genotyped for 5-HTTLPR. Salivary samples were obtained on four consecutive school days within 1 h of waking from 393 (97.5%) individuals and 367 (91%) underwent a mental state reassessment at 12 months. RESULTS: Multilevel analysis revealed higher levels of salivary cortisol in short allele carriers (s/s>s/l>l/l). A subsequent episode of depression was increased in those with higher cortisol and the 's' allele, and independently by depressive symptoms at entry, in both genders. CONCLUSIONS: The short allele of 5-HTTLPR may moderate the association between morning cortisol and the subsequent onset of a depressive episode.


Subject(s)
Depressive Disorder/genetics , Depressive Disorder/metabolism , Genetic Predisposition to Disease , Hydrocortisone/metabolism , Serotonin Plasma Membrane Transport Proteins/genetics , Adolescent , Alleles , Child , Depressive Disorder/psychology , Female , Genotype , Humans , Male , Multilevel Analysis , Psychopathology , Risk Factors , Saliva/chemistry , Serotonin Plasma Membrane Transport Proteins/metabolism
18.
Exp Psychol ; 56(2): 77-83, 2009.
Article in English | MEDLINE | ID: mdl-19261582

ABSTRACT

In this study, we examine the role of beliefs in conditional inference in two experiments, demonstrating a robust tendency for people to make fewer inferences from statements they disbelieve, regardless of logical validity. The main purpose of this study was to test whether participants are able to inhibit this belief effect where it constitutes a bias. This is the case when participants are specifically instructed to assume the truth of the premises. However, Experiment 1 showed that the effect is no less marked than when this instruction is given, than when it is not, although higher ability participants did show slightly less influence of belief (Experiment 2). Contrary to the findings with syllogistic reasoning, use of speeded tasks had no effect on the extent of the belief bias (both experiments), although it did considerably reduce the numbers of inferences that were drawn overall. These findings suggest that the belief bias in conditional inference is less open to volitional control than that associated with syllogistic reasoning.


Subject(s)
Attention , Culture , Logic , Problem Solving , Reaction Time , Reading , Stress, Psychological/complications , Association , Female , Humans , Inhibition, Psychological , Judgment , Male , Memory, Short-Term , Semantics , Thinking , Young Adult
19.
Q J Exp Psychol (Hove) ; 61(5): 784-808, 2008 May.
Article in English | MEDLINE | ID: mdl-17853229

ABSTRACT

Faced with extreme demands, hypothetical thinking runs the danger of total failure. Paradoxical propositions such as the Liar ("I am lying") provide an opportunity to test it to its limits, while the Liar's nonparadoxical counterpart, the Truthteller ("I am telling the truth"), provides a useful comparison. Two experiments are reported, one with abstract materials ("If I am a knave then I live in Emerald City") and one with belief-laden materials (a judge says: "If I am a knave then I enjoy pop music"). In both experiments, conditionals with Truthteller-type antecedents were "collapsed" to responses of conditional probability closely resembling estimates of control items. Liar-type antecedents, in contrast, dramatically weakened belief in conditionals in which they were embedded. The results are discussed in the framework of the theory of hypothetical thinking.


Subject(s)
Thinking/physiology , Comprehension/physiology , Cues , Deception , Humans , Judgment/physiology , Memory, Short-Term/physiology , Probability Learning , Students/psychology , Task Performance and Analysis
20.
Br J Psychol ; 98(Pt 1): 79-92, 2007 Feb.
Article in English | MEDLINE | ID: mdl-17227613

ABSTRACT

Bacon, Handley, and Newstead (2003, 2004), have presented evidence for individual differences in reasoning strategies, with most people seeming to represent and manipulate problem information using either a verbal or a spatial strategy. There is also evidence that individuals with dyslexia are inclined to conceptualise information in a visuo-spatial, rather than a verbal, way (e.g. von Károlyi et al., 2003). If so, we might expect a higher proportion of individuals with dyslexia to be spatial reasoners, compared with individuals who do not have dyslexia. The study reported here directly compared strategies reported by these two groups of participants on a syllogistic reasoning task. Moreover, problem content was manipulated so that reasoning across concrete and abstract materials could be compared. The findings suggest that whilst most individuals without dyslexia use a verbal strategy, reasoners with dyslexia do tend to adopt a spatial approach, though their performance is impaired with visually concrete materials. However, when reasoning with more abstract content, they perform comparably with non-dyslexic controls. The paper discusses these results in the light of recent research which has suggested that visual images may impede reasoning, and considers how individuals with dyslexia may differ from other reasoners.


Subject(s)
Attention , Discrimination Learning , Dyslexia/psychology , Orientation , Pattern Recognition, Visual , Problem Solving , Adult , Concept Formation , Female , Humans , Imagination , Logic , Male , Students/psychology , Symbolism
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