Personal Space Boundaries: Clinical Applications in Psychiatric Mental Health Nursing

topic . Theory of personal space boundaries (PSB) and its application to clinical psychiatric nursing.
purpose . To provide a nursing perspective of interventions that incorporate the interactive effects of cognition, affect, behavior, and spirituality on human experience and behavior.
source . Theory of PSB developed by the author.
conclusion . Understanding PSB allows for more effective nursing interventions.     

Immunocytochemical demonstration of early appearing astroglial structures that form boundaries and pathways along axon tracts in the fetal brain

During normal development of the mammalian forebrain, the paired cerebral hemispheres are initially separated midsagittally by the connective tissue-filled longitudinal fissure. During subsequent stages, the hemispheres fuse as basal lamina is remodeled and fibroblasts are eliminated from the fissure to create new central nervous system (CNS) territory in the midline. Two axon pathways, the corpus callosum and dorsal callosal stria, eventually use this region as part of their pathway. In order to assess the possible role of glial cells in the fusion process and in the guidance of axons in this and several other areas of the forebrain, we have analyzed the developing brain in timed cat and mouse embryos with immunohistochemical and morphological techniques. With the use of astroglial-specific antibodies and electron microscopy, we have visualized two distinct, primitive astroglial structures associated with the cerebral midline, and seven more associated with other specific brain regions. The way in which one of these structures moves as a column along the hemispheric midline in synchrony with seam formation suggests the possibility that during morphogenesis of the telencephalon, astrocytes may aid in the fusion process. In addition, the compact assemblage, early appearance and location of this and the other glial structures in relation to well defined neuroanatomical landmarks or axon pathways suggest that they may transiently compartmentalize relatively large regions of the CNS and organize certain developing fiber systems by acting as guides or barriers at critical stages of ontogeny. © 1993 Wiley-Liss, Inc.     

User involvement in mental health nursing practice: rhetoric or reality?

Following the review of mental health nursing, nurses need to address the dilemma of providing empowering care in a climate of increasing control and stigma. This paper discusses tile background to, and significance for nursing, of the 'user movement' in the UK. A current 'explosion' of user groups does not imply that these form a homogeneous group, nor that they share similar perspectives. Consultation and involvement mean little if unmatched with action. This may be constrained by the 'market' in which the 'true power' is held by the budget holder, and by stigmatizing policy imperatives claimed to be in the public interest. Self-advocacy may be legitimized by the desire to prevent providers 'speaking out'. These difficulties may, however, provide convenient excuses for inaction. A new professional identity may be found in forging political alliances with users, in which a reappraisal of traditional boundaries may go some way towards reducing the stigma surrounding mental health problems.     

Glycoconjugate boundaries during early postnatal development of the neostriatal mosaic

The dispositions of galactosyl-containing glycoconjugates were studied during postnatal development of the caudate putamen in mice. The binding of the lectin peanut agglutinin, which has an affinity for galactosyl B-1,3 N-acetylgalactosamine residues, was compared to acetylcholinesterase staining and tyrosine hydroxylase immunoreactivity in the immature and adult neostriatum. The binding of peanut agglutinin conjugated to horseradish peroxidase, in sections that were processed for peroxidase histochemistry, was extremely pronounced in the neostriatum through the first postnatal week and constituted ringlike or polygonally shaped structures, which, overall, produced a variegated mosaic. These structures consist of outer rims of dense lectin-associated reaction product surrounding lightly labeled centers. Lectin delineations of the neostriatal mosaic are no longer visible in the second postnatal week. When adjacent sections were processed for lectin binding or acetylcholinesterase histochemistry, the dense lectin binding sites represented borders of acetylcholinesterase-rich and -poor zones. The distribution of dense patches of tyrosine hydroxylase immunoreactive fibers and terminals also coincides with the acetylcholinesterase-rich zones during the same times, and thus the glycoconjugate-delineated boundaries can also be directly compared with the distribution of nigrostriatal dopaminergic projections. The findings presented here represent the first demonstration of a probe that recognizes apparent borders of neostriatal compartments during a limited period of development. They are consistent with previous observations made on transient glycoconjugate "hidden boundaries" during development of other central nervous system structures, including the somatosensory cortical barrel field, and thalamic and brainstem nuclei (Cooper and Steindler, '86a,b; Steindler and Cooper, in press). In those studies, glia were shown to be the major source of glycoconjugate-associated patterns, and thus, glia and glycoconjugates that they synthesize during pattern formation events may be involved in the formation and stabilization of neurochemically distinct components of the neostriatal mosaic.     

Boundary at work: alternative medicine in biomedical settings

The study explores the process of boundary demarcation within hospital settings by examining a new phenomenon in modern medicine: collaboration between alternative and biomedical practitioners (primarily physicians) working together in biomedical settings. The study uses qualitative methods to examine the nature of this collaboration by calling attention to the ways in which the biomedical profession manages to secure its boundaries and to protect its hard-core professional knowledge. It identifies the processes of exclusion and marginalization as the main mechanisms by which symbolic boundaries are marked daily in the professional field. These processes enable the biomedical profession to contain its competitors and at the same time to avoid overt confrontations and mitigate potential tensions between the two medical systems.     

From ecstasy to MDMA: Recreational drug use,symbolic boundaries,and drug trends

BackgroundEcstasy pills with MDMA as the main ingredient were introduced in many European countries in the 1980s, and were often linked to the rave and club scenes. However, use gradually levelled off, in part as a response to increased concerns about possible mental health consequences and fatalities. Extensive use of MDMA now seems to be re-emerging in many countries. In this study, we investigated the cultural and social meaning associated with MDMA use in Oslo, Norway, with an emphasis on how users distinguish MDMA crystals and powder from “old ecstasy pills”.MethodsQualitative in-depth interviews (n = 31, 61,3% males) were conducted with young adult party-goers and recreational MDMA/ecstasy users (20–34 years old, mean age 26.2 years).ResultsResearch participants emphasised three important perceived differences between the MDMA crystals and ecstasy pills: (i) The effects of MDMA were described as better than ecstasy; (ii) MDMA was regarded as a safer drug; (iii) Users of MDMA crystals were described as more distinct from and less anchored in out-of-fashion rave culture than those using ecstasy. These differences were an important part of the symbolic boundary work MDMA users engaged in when justifying their drug use.ConclusionMDMA has re-emerged as an important psychoactive substance in Oslo’s club scene. One important reason for this re-emergence seems to be its perceived differentiation from ecstasy pills, even though the active ingredient in both drugs is MDMA. This perceived distinction between MDMA and ecstasy reveals the importance of social and symbolic meanings in relation to psychoactive substance use. Insights from this study can be important in terms of understanding how trends in drug use develop and how certain drugs gain or lose popularity.