Recognizing Extreme Abuse and Dissociative Reactions in Children

1986 ◽  
Author(s):  
Jean Goodwin
Keyword(s):  
Dissociative Reactions

Transient Phenomena in Dissociative Reactions

1966 ◽  
Vol 9 (10) ◽  
pp. 1885 ◽  
Author(s):  
Charles A. Brau
Keyword(s):  
Transient Phenomena ◽  
Dissociative Reactions

The Influence of Distressing Information on Memory in Acute Stress Disorder

2006 ◽  
Vol 34 (3) ◽  
pp. 333-341 ◽  
Author(s):  
Michelle L. Moulds ◽  
Richard A. Bryant
Keyword(s):  
Stress Disorder ◽  
Acute Stress ◽  
Acute Stress Disorder ◽  
Impaired Memory ◽  
Related Information ◽  
Dissociative Tendencies ◽  
Dissociative Reactions

Acute stress disorder (ASD) is purportedly characterized by impaired encoding of aversive material. In this study ASD, trauma-exposed non-ASD, and non-traumatized control participants (N = 45) were administered intermixed presentations of either distressing (i.e. disfigured) or neutral faces. For each presentation, two words were presented centrally to the image and two were presented peripherally. Participants were subsequently administered recall and recognition tests for the presented words. Participants recalled more words presented centrally to neutral images than those presented centrally to trauma images. Dissociative tendencies were negatively correlated with recognition of words centrally presented with distressing stimuli. These findings are consistent with the proposal that dissociative reactions are associated with impaired memory for distress-related information.

Pyrrole (C4H4NH) and Polypyrrole Functionalized Silicon Surfaces Calculated from First Principles

2003 ◽  
Vol 10 (02n03) ◽  
pp. 221-226 ◽  
Author(s):  
W. G. Schmidt ◽  
K. Seino
Keyword(s):  
Experimental Data ◽  
First Principles ◽  
Lattice Mismatch ◽  
Silicon Surfaces ◽  
Chemical Modifications ◽  
Pseudopotential Calculations ◽  
Adsorption Geometry ◽  
Dissociative Reactions ◽  
Monolayer Coverage

The functionalization of the Si(001) surface by pyrrole and polypyrrole is investigated by means of first-principles pseudopotential calculations. We find dissociative reactions, leading to the partial fragmentation of the molecule, to be energetically most favored for pyrrole adsorption. The lowest-energy configuration for monolayer coverage is characterized by pyrrole rings bonded to the surface via Si–N linkage. In coexistence with adsorption geometries where both N and C are bonded to the surface, this structure accounts very well for the available experimental data. Chemisorption of pyrrole is found to effectively passivate the Si(001) surface, irrespective of the details of the adsorption geometry. The formation of well-ordered polypyrrole structures on Si(001) may require chemical modifications of the polypyrrole chains in order to account for the lattice mismatch.

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