Threat, Worry and Suspiciousness: An Investigation on Paranoia and Anxiety in Non-clinical Population
Başlık:
Threat, Worry and Suspiciousness: An Investigation on Paranoia and Anxiety in Non-clinical Population
Yazar:
Sun, Xiaoqi, author.
ISBN:
9780438106307
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (189 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Özet:
Background: Paranoia and anxiety both distribute on continua across clinical and non-clinical populations. At the severe extreme of the continua, persecutory delusions and anxiety symptoms usually go hand-in-hand. However, the relation between the two continua in the general population remains unclear. Moreover, theorists posited that paranoia and anxiety share similarities at the phenomenal level. A range of anxiety related mechanisms, such as worry and threat related processes, were proposed as playing a role in paranoia as well. The remaining questions are to what extent these mechanisms drive both paranoia and anxiety; do they contribute to paranoia independently or merely to the co-occurring anxiety; and how do they lead to one symptom rather than the other?
Aims: (1) To elucidate the relation between paranoia and anxiety in the general population; and (2) to identify similarities and differences in worry processes and threat-related mechanisms between paranoia and anxiety.
Method: Three studies, using different methods, were conducted. In Studies 1 and 3 iv (Chapters 2 & 4), an online survey, consisting of self-report questionnaires on generalized anxiety, paranoia, and worry processes was applied two times with one-year interval. In Study 1, a cluster analysis was performed on a valid sample of 2291 university students based on their proneness of paranoia and anxiety. Multivariate analyses of variance (MANOVA) were conducted to compare resultant groups on three distinct worry processes (i.e. daily worries, meta-worry and meta-cognitive beliefs about worry). In Study 3, longitudinal path analyses (N=1746) were performed with data from baseline (T1) as exogenous variables and one-year follow-up (T2) as endogenous variables. Model fits were evaluated by chi-square statistic, CFI, RMSEA and SRMR. In Study 2 (Chapter 3), an experimental approach was adopted. Three groups of individuals with high paranoia-and-anxiety (N=29), high anxiety-only (N=29), and low paranoia and anxiety (N=30) respectively, were compared on three threat-related mechanisms (i.e. attentional bias to threat, perception of threat, need for epistemic security). Multiple regression analyses and moderation analyses were performed subsequently.
Results: Cluster analysis yielded four groups of individuals, among which one group had high paranoia/moderate anxiety, and another group had average paranoia/high anxiety. Path analysis suggested the relation between paranoia and anxiety was reciprocal. However, anxiety predicted paranoia over time more strongly than the other way around. Worry processes were more elevated in the group with both paranoia and anxiety than the group with anxiety only. Each worry process predicted paranoia and anxiety equally strongly over time. Although both paranoia and anxiety group and anxiety only group had biased attention and perception to threat, different features were found in each group. Heightened need for epistemic security was shared between groups.
Conclusions: Paranoia and anxiety are two separate continua that overlap to certain extent in the general population. They are mutually reinforcing over time. Worry processes are shared driving forces for paranoia and anxiety. Distinguished features in threat-related attention and perception may bring the content to paranoia.
Notlar:
School code: 1307
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(687329.1) | 687329-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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