scholarly journals The relationship of psychological trauma with trichotillomania and skin picking

2015 ◽  
pp. 1203 ◽  
Author(s):  
Eylem Özten ◽  
Gökben Hızlı Sayar ◽  
Gaye Kağan ◽  
Sibel Işık ◽  
Oğuz Karamustafalıoğlu ◽  
...  
Keyword(s):  
Psychological Trauma ◽  
Skin Picking ◽  
Relationship Of ◽  
The Relationship

scholarly journals Abnormal brain activation in excoriation (skin-picking) disorder: Evidence from an executive planning fMRI study

2016 ◽  
Vol 208 (2) ◽  
pp. 168-174 ◽  
Author(s):  
Brian L. Odlaug ◽  
Adam Hampshire ◽  
Samuel R. Chamberlain ◽  
Jon E. Grant
Keyword(s):  
Dorsal Striatum ◽  
Region Of Interest ◽  
Anterior Cingulate ◽  
Obsessive Compulsive ◽  
Skin Picking ◽  
Fmri Study ◽  
Skin Picking Disorder ◽  
Relationship Of ◽  
Excessive Grooming ◽  
The Relationship

BackgroundExcoriation (skin-picking) disorder (SPD) is a relatively common psychiatric condition whose neurobiological basis is unknown.AimsTo probe the function of fronto-striatal circuitry in SPD.MethodEighteen participants with SPD and 15 matched healthy controls undertook an executive planning task (Tower of London) during functional magnetic resonance imaging (fMRI). Activation during planning was compared between groups using region of interest and whole-brain permutation cluster approaches.ResultsThe SPD group exhibited significant functional underactivation in a cluster encompassing bilateral dorsal striatum (maximal in right caudate), bilateral anterior cingulate and right medial frontal regions. These abnormalities were, for the most part, outside the dorsal planning network typically activated by executive planning tasks.ConclusionsAbnormalities of neural regions involved in habit formation, action monitoring and inhibition appear involved in the pathophysiology of SPD. Implications exist for understanding the basis of excessive grooming and the relationship of SPD with putative obsessive–compulsive spectrum disorders.

scholarly journals Analysis of Individual and Social Forms of Psychological Trauma

2021 ◽  
Vol 10 (3) ◽  
pp. 283-298
Author(s):  
A.I. Krasilo
Keyword(s):  
Reference Group ◽  
Psychological Trauma ◽  
Social Form ◽  
Social Forms ◽  
Personality Research ◽  
Projective Methods ◽  
The Social ◽  
Relationship Of ◽  
The Relationship

The article attempts to determine its socio-psychological essence through the analysis of the social form of psychological trauma, as well as to identify the psychological nature of the pathological neoplasms that have arisen as a result of it, the specificity of which largely determines the methods and technology of personalistic counseling. These neoplasms are both individual psychological, including the sphere of experiences, and socio-psychological, affecting the relationship of the victims. The integration of the dominant parasitic "Ego" into the depth of the victim's personality, up to the very first level of the primary trusting relationship between the all-powerful and loving mother and a helpless child, we called the introjection of the personifier. As a result of the analysis, we come to the need for a specific restructuring of the irrational relationships of the victim with two other participants in the traumatic situation: the beneficiary, who receives personal benefits from this situation, and the reference group of the victim, who is traumatically personified by him in the image of an impersonal social personifier. The main methods of victims’ examination during the thirty years of counseling were: clinical conversation and projective methods of personality research.

The Relationship of Pathologic Skin Picking to Obsessive-Compulsive Disorder

2001 ◽  
Vol 189 (3) ◽  
pp. 193-195 ◽  
Author(s):  
Bernadette A. Cullen ◽  
Jack F. Samuels ◽  
O. Joseph Bienvenu ◽  
Marco Grados ◽  
Rudolf Hoehn-Saric ◽  
...  
Keyword(s):  
Obsessive Compulsive Disorder ◽  
Obsessive Compulsive ◽  
Skin Picking ◽  
Compulsive Disorder ◽  
Relationship Of ◽  
The Relationship

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

Studies on Leukemogenic and Sarcomagenic Viruses

1970 ◽  
Vol 28 ◽  
pp. 156-157
Author(s):  
Leon Dmochowski
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Morphological Properties ◽  
Mode Of Development ◽  
Relationship Of ◽  
The Relationship

Electron microscopy has proved to be an invaluable discipline in studies on the relationship of viruses to the origin of leukemia, sarcoma, and other types of tumors in animals and man. The successful cell-free transmission of leukemia and sarcoma in mice, rats, hamsters, and cats, interpreted as due to a virus or viruses, was proved to be due to a virus on the basis of electron microscope studies. These studies demonstrated that all the types of neoplasia in animals of the species examined are produced by a virus of certain characteristic morphological properties similar, if not identical, in the mode of development in all types of neoplasia in animals, as shown in Fig. 1.

The relationship of IGE receptor topography to signaling activity in RBL-2H3 mast cells

1991 ◽  
Vol 49 ◽  
pp. 236-237
Author(s):  
J.R. Pfeiffer ◽  
J.C. Seagrave ◽  
C. Wofsy ◽  
J.M. Oliver
Keyword(s):  
Mast Cells ◽  
Protein A ◽  
Scattered Electron ◽  
Ige Receptor ◽  
Receptor Complexes ◽  
Ige Binding ◽  
Electron Imaging ◽  
Small Clusters ◽  
Relationship Of ◽  
The Relationship

In RBL-2H3 rat leukemic mast cells, crosslinking IgE-receptor complexes with anti-IgE antibody leads to degranulation. Receptor crosslinking also stimulates the redistribution of receptors on the cell surface, a process that can be observed by labeling the anti-IgE with 15 nm protein A-gold particles as described in Stump et al. (1989), followed by back-scattered electron imaging (BEI) in the scanning electron microscope. We report that anti-IgE binding stimulates the redistribution of IgE-receptor complexes at 37“C from a dispersed topography (singlets and doublets; S/D) to distributions dominated sequentially by short chains, small clusters and large aggregates of crosslinked receptors. These patterns can be observed (Figure 1), quantified (Figure 2) and analyzed statistically. Cells incubated with 1 μg/ml anti-IgE, a concentration that stimulates maximum net secretion, redistribute receptors as far as chains and small clusters during a 15 min incubation period. At 3 and 10 μg/ml anti-IgE, net secretion is reduced and the majority of receptors redistribute rapidly into clusters and large aggregates.

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