503 research outputs found
Recovered Voices: Experiences of Borderline Personality Disorder
The purpose of this article is to use poetic analysis to present evocative accounts of the lived experiences of individuals who have recovered from Borderline Personality Disorder (BPD). Individuals with BPD suffer from a complex set of clinical issues that may be worsened by stigmatization encountered in their general lives as well as from health care providers. I argue that one method of enhancing clinical service provision to individuals with BPD is to view their behavior within the context that it originally developed. Viewing behavior in context may enhance healthcare providers’ abilities to respond empathically and/or to assist clients in generating meaningful solutions to problems associated with BPD. The poems offered here represent six individual stories of the experience of BPD. These poems may serve as a reminder of the painful and often tragic circumstances in which “borderline” behaviors can develop. They may also be useful as tools to assist trainees in developing better understanding of how to work with individuals with BPD effectively and compassionately
Pediatric Cerebral Palsy in Africa: Where Are We?
Cerebral palsy is the most common cause of physical disability in children worldwide. However, little is reported on this condition in the African context. Doctors from 22 countries in Africa, and representatives from a further 5 countries outside Africa, met to discuss the challenges in the evaluation and management of children with cerebral palsy in Africa and to propose service needs and further research. Basic care is limited by the poor availability of diagnostic facilities or medical personnel with experience and expertise in managing cerebral palsy, exacerbated by lack of available interventions such as medications, surgical procedures, or even regular therapy input. Relevant guidelines are lacking. In order to guide services for children with existing disabilities, to effectively target the main etiologies and to develop preventive strategies for the continent, research priorities must include multicenter collaborative studies looking at the prevalence, risk factors, and treatment of cerebral palsy
Buspirone pharmacokinetics in autistic children
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/110082/1/cptclpt2005123.pd
Recovery from Borderline Personality Disorder through Dialectical Behavior Therapy
This article presents a qualitative investigation of the perspectives and experiences of recovery from borderline personality disorder from six individuals who were treated with comprehensive dialectical behavior therapy. Data were collected via semi-structured interviews, transcribed, and coded using a six-step analysis process. Six primary themes emerged: (1) belief about recovery, (2) current experience of self, (3) facets of recovery, (4) motivating factors, (5) external supports to recovery, and (6) characteristics required for recovery. Overall, the findings took a dialectical form in which participants often described conflicting experiences (e.g., feeling recovered while also continuing to experience heightened emotional sensitivity). We conclude that the themes presented in this article represent broad domains related to the meaning of recovery from BPD, and recognize that the relative importance of each domain is best determined by the individual
Global and regional brain metabolic scaling and its functional consequences
Background: Information processing in the brain requires large amounts of
metabolic energy, the spatial distribution of which is highly heterogeneous
reflecting complex activity patterns in the mammalian brain.
Results: Here, it is found based on empirical data that, despite this
heterogeneity, the volume-specific cerebral glucose metabolic rate of many
different brain structures scales with brain volume with almost the same
exponent around -0.15. The exception is white matter, the metabolism of which
seems to scale with a standard specific exponent -1/4. The scaling exponents
for the total oxygen and glucose consumptions in the brain in relation to its
volume are identical and equal to , which is significantly larger
than the exponents 3/4 and 2/3 suggested for whole body basal metabolism on
body mass.
Conclusions: These findings show explicitly that in mammals (i)
volume-specific scaling exponents of the cerebral energy expenditure in
different brain parts are approximately constant (except brain stem
structures), and (ii) the total cerebral metabolic exponent against brain
volume is greater than the much-cited Kleiber's 3/4 exponent. The
neurophysiological factors that might account for the regional uniformity of
the exponents and for the excessive scaling of the total brain metabolism are
discussed, along with the relationship between brain metabolic scaling and
computation.Comment: Brain metabolism scales with its mass well above 3/4 exponen
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Effects of degree and timing of social housing on reversal learning and response to novel objects in dairy calves
Rodents and primates deprived of early social contact exhibit deficits in learning and behavioural
flexibility. They often also exhibit apparent signs of elevated anxiety, although the relationship between these effects has not been studied. To investigate whether dairy calves are similarly affected, we first compared calves housed in standard individual pens
(n = 7) to those housed in a dynamic group with access to their mothers (n = 8). All calves learned to approach the correct stimulus in a visual discrimination task. Only one individually housed calf was able to re-learn the task when the stimuli were reversed, compared to all but one calf from the group. A second experiment investigated whether this effect might be explained by anxiety in individually housed animals interfering with their learning, and tested varying degrees of social contact in addition to the complex group: pair housing beginning early (approximately 6 days old) and late (6 weeks old). Again, fewer individually reared calves learned the reversal task (2 of 10 or 20%) compared to early paired and grouped calves (16 of 21 or 76% of calves). Late paired calves had intermediate success. Individually housed calves were slower to touch novel objects, but the magnitude of the fear response did not correlate with reversal performance. We conclude that individually housed calves have learning deficits, but these deficits were not likely associated with increased
anxiety
Assessment of motor functioning in the preschool period
The assessment of motor functioning in young children has become increasingly important in recent years with the acknowledgement that motor impairment is linked with cognitive, language, social and emotional difficulties. However, there is no one gold standard assessment tool to investigate motor ability in children. The aim of the current paper was to discuss the issues related to the assessment of motor ability in young pre-school children and to provide guidelines on the best approach for motor assessment. The paper discusses the maturational changes in brain development at the preschool level in relation to motor ability. Other issues include sex differences in motor ability at this young age, and evidence for this in relation to sociological versus biological influences. From the previous literature it is unclear what needs to be assessed in relation to motor functioning. Should the focus be underlying motor processes or movement skill assessment? Several key assessment tools are discussed that produce a general measure of motor performance followed by a description of tools that assess specific skills, such as fine and gross motor, ball and graphomotor skills. The paper concludes with recommendations on the best approach in assessing motor function in pre-school children
Activity of Bdellovibrio Hit Locus Proteins, Bd0108 and Bd0109, Links Type IVa Pilus Extrusion/Retraction Status to Prey-Independent Growth Signalling
Bdellovibrio bacteriovorus are facultatively predatory bacteria that grow within gram-negative prey, using pili to
invade their periplasmic niche. They also grow prey-independently on organic nutrients after undergoing a reversible
switch. The nature of the growth switching mechanism has been elusive, but several independent reports suggested
mutations in the hit (host-interaction) locus on the Bdellovibrio genome were associated with the transition to preyindependent
growth. Pili are essential for prey entry by Bdellovibrio and sequence analysis of the hit locus predicted
that it was part of a cluster of Type IVb pilus-associated genes, containing bd0108 and bd0109. In this study we have
deleted the whole bd0108 gene, which is unique to Bdellovibrio, and compared its phenotype to strains containing
spontaneous mutations in bd0108 and the common natural 42 bp deletion variant of bd0108. We find that deletion of
the whole bd0108 gene greatly reduced the extrusion of pili, whereas the 42 bp deletion caused greater pilus
extrusion than wild-type. The pili isolated from these strains were comprised of the Type IVa pilin protein; PilA.
Attempts to similarly delete gene bd0109, which like bd0108 encodes a periplasmic/secreted protein, were not
successful, suggesting that it is likely to be essential for Bdellovibrio viability in any growth mode. Bd0109 has a
sugar binding YD- repeat motif and an N-terminus with a putative pilin-like fold and was found to interact directly with
Bd0108. These results lead us to propose that the Bd0109/Bd0108 interaction regulates pilus production in
Bdellovibrio (possibly by interaction with the pilus fibre at the cell wall), and that the presence (and possibly retraction
state) of the pilus feeds back to alter the growth state of the Bdellovibrio cell. We further identify a novel small RNA
encoded by the hit locus, the transcription of which is altered in different bd0108 mutation background
Brain Changes in Long-Term Zen Meditators Using Proton Magnetic Resonance Spectroscopy and Diffusion Tensor Imaging: A Controlled Study
Introduction: This work aimed to determine whether 1H magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) are correlated with years of meditation and psychological variables in long-term Zen meditators compared to healthy non-meditator controls. Materials and Methods: Design. Controlled, cross-sectional study. Sample. Meditators were recruited from a Zen Buddhist monastery. The control group was recruited from hospital staff. Meditators were administered questionnaires on anxiety, depression, cognitive impairment and mindfulness. 1H-MRS (1.5 T) of the brain was carried out by exploring four areas: both thalami, both hippocampi, the posterior superior parietal lobule (PSPL) and posterior cingulate gyrus. Predefined areas of the brain were measured for diffusivity (ADC) and fractional anisotropy (FA) by MR-DTI. Results: Myo-inositol (mI) was increased in the posterior cingulate gyrus and Glutamate (Glu), N-acetyl-aspartate (NAA) and N-acetyl-aspartate/Creatine (NAA/Cr) was reduced in the left thalamus in meditators. We found a significant positive correlation between mI in the posterior cingulate and years of meditation (r = 0.518; p = .019). We also found significant negative correlations between Glu (r =20.452; p = .045), NAA (r =20.617; p = .003) and NAA/Cr (r =20.448; P = .047) in the left thalamus and years of meditation. Meditators showed a lower Apparent Diffusion Coefficient (ADC) in the left posterior parietal white matter than did controls, and the ADC was negatively correlated with years of meditation (r =20.4850, p = .0066). Conclusions: The results are consistent with the view that mI, Glu and NAA are the most important altered metabolites. This study provides evidence of subtle abnormalities in neuronal function in regions of the white matter in meditators
Developmental perspectives on interpersonal affective touch
In the last decade, philosophy, neuroscience and psychology alike have paid increasing attention to the study of interpersonal affective touch, which refers to the emotional and motivational facets of tactile sensation. Some aspects of affective touch have been linked to a neurophysiologically specialised system, namely the C tactile (CT) system. While the role of this sys-tem for affiliation, social bonding and communication of emotions have been widely investigated, only recently researchers have started to focus on the potential role of interpersonal affective touch in acquiring awareness of the body as our own, i.e. as belonging to our psychological ‘self’. We review and discuss recent developmental and adult findings, pointing to the central role of interpersonal affective touch in body awareness and social cognition in health and disorders. We propose that interpersonal affective touch, as an interoceptive modality invested of a social nature, can uniquely contribute to the ongoing debate in philosophy about the primacy of the relational nature of the minimal self
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