Browsing by Author "Peixoto, Ermelindo"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- Development and Validation of the Response to Stressful Situations Scale in the General PopulationPublication . Carvalho, Célia; Motta, Carolina; Sousa, Marina; Cabral, Joana; Carvalho, Ana Luisa; Peixoto, ErmelindoThe aim of the current study was to develop and validate a Response to Stressful Situations Scale (RSSS) for the Portuguese population. This scale assesses the degree of stress experienced in scenarios that can constitute positive, negative and more neutral stressors, and also describes the physiological, emotional and behavioral reactions to those events according to their intensity. These scenario include typical stressor scenarios relevant to patients with schizophrenia, which are currently absent from most scale, assessing specific risks that these stressors may bring on subjects, which may prove useful in nonclinical and clinical populations (i.e. patients with mood or anxiety disorders, schizophrenia). Results from Principal Components Analysis and Confirmatory Factor Analysis of on two adult samples from general population allowed to confirm a three-factor model with good fit indices: χ2 (144)= 370.211, p = 0.000; GFI = 0.928; CFI = 0.927; TLI = 0.914, RMSEA = 0.055, P( rmsea ≤ 0.005) = 0.096; PCFI = 0.781. Further data analysis on the scale revealed that RSSS is an adequate assessment tool of stress response in adults to be used in further research and clinical settings, with good psychometric characteristics, adequate divergent and convergent validity, good temporal stability and high internal consistency.
- Emotional, cognitive and behavioral reactions to paranoia in clinical and nonclinical populationPublication . Carvalho, Célia; Pinto-Gouveia, José; Peixoto, Ermelindo; Motta, CarolinaBACKGROUND: Paranoia is a disruptive belief that can vary across a continuum, ranging from persecutory delusions presented in clinical settings to paranoid cognitions that are highly prevalent in the general population. The literature suggests that paranoid thoughts derive from the activation of a paranoid schema or information processing biases that can be sensitive to socially ambiguous stimuli and influence the processing of threatening situations. METHOD: Four groups (Schizophrenic participants in active psychotic phases, n=6; stable participants in remission, n=30; participants’ relatives, n=32; and healthy controls, n=64) were assessed with self-report questionnaires to determine how the reactions to paranoia of clinical patients differ from healthy individuals. Cognitive, emotional and behavioral dimensions of their reactions to these paranoid thoughts were examined. RESULTS: Paranoid individuals were present in all groups. Most articipants referred the rejection by others as an important trigger of paranoid ideations, while active psychotic were unable to identify triggering situations to their thoughts and reactions. This may be determinant to the different reactions and the different degree of invalidation caused by paranoid thoughts observed across groups. CONCLUSION: Clinical and non-clinical expressions of paranoid ideations differ in terms of their cognitive, emotional and behavioral components. It is suggested that, in socially ambiguous situations, paranoid participants (presenting lower thresholds of paranoid schema activation) lose the opportunity to disconfirm their paranoid beliefs by resourcing to more maladaptive coping strategies. Consequently, by dwelling on these thoughts, the amount of time spent thinking about their condition and the disability related to the disease increases.
- Hallucinatory Activity In Schizophrenia : The Relationship With Childhood Memories, Submissive Behavior, Social Comparison, And DepressionPublication . Carvalho, Célia; Motta, Carolina; Pinto-Gouveia, José; Peixoto, ErmelindoAuditory hallucinations among the most invalidating and distressing experiences reported by patients diagnosed with schizophrenia, leading to feelings of powerlessness and helplessness towards their illness. In more severe cases, thesevauditory hallucinations can take the form of commanding voices, which are often related to high suicidality rates in these patients. Several authors propose that the meanings attributed to the hallucinatory experience, rather than characteristics like form and content, can be determinant in patients’ reactions to hallucinatory activity, particularly in the case of voice-hearing experiences. In this study, 48 patients diagnosed with paranoid schizophrenia presenting auditory hallucinations were studied. Multiple regression analyses were computed to study the influence of several developmental aspects, such as family and social dynamics, bullying, depression, and socio-cognitive variables on the auditory hallucinations, on patients’ attributions and relationships with their voices, and on the resulting invalidation of hallucinatory experience. Overall, results showed how relationships with voices can mirror several aspects of interpersonal relationship with others, and how self-schemas, depression and actual social relationships help shaping the voice-hearing experience. Early experiences of victimization and submission help predict the attributions of omnipotence of the voices, and increased hostility from parents seems to increase the malevolence of the voices, suggesting that socio-cognitive factors can significantly contribute to the etiology and maintenance of auditory hallucinations. The understanding of the characteristics of auditory hallucinations and the relationships patients established with their voices can allow the development of more promising therapeutic interventions that can be more effective in decreasing invalidation caused by this devastating mental illness.