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https://www.readbyqxmd.com/read/27910120/at-the-margins-of-biomedicine-the-ambiguous-position-of-registered-medical-practitioners-in-rural-indian-healthcare
#1
Papreen Nahar, Nanda Kishore Kannuri, Sitamma Mikkilineni, G V S Murthy, Peter Phillimore
This analysis challenges a tendency in public health and the social sciences to associate India's medical pluralism with a distinction between biomedicine, as a homogeneous entity, and its non-biomedical 'others'. We argue that this overdrawn dichotomy obscures the important part played by 'informal' biomedical practice, an issue with salience well beyond India. Based on a qualitative study in rural Andhra Pradesh, South India, we focus on a figure little discussed in the academic literature - the Registered Medical Practitioner (RMP) - who occupies a niche in the medical market-place as an informal exponent of biomedical treatment...
December 2, 2016: Sociology of Health & Illness
https://www.readbyqxmd.com/read/27909095/dynamic-shifts-in-large-scale-brain-network-balance-as-a-function-of-arousal
#2
Christina B Young, Gal Raz, Daphne Everaerd, Christian F Beckmann, Indira Tendolkar, Talma Hendler, Guillén Fernández, Erno J Hermans
: The ability to temporarily prioritize rapid and vigilant reactions over slower higher-order cognitive functions is essential for adaptive responding to threat. This reprioritization is believed to reflect shifts in resource allocation between large-scale brain networks that support these cognitive functions, including the salience and executive control networks. How changes in communication within and between such networks dynamically unfold as a function of threat-related arousal, however, remains unknown...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27897673/soap-opera-self-as-object-and-agent-in-prioritizing-attention
#3
Grace Truong, Rebecca M Todd
A growing body of evidence has demonstrated that multiple sources of salience tune attentional sets toward aspects of the environment, including affectively and motivationally significant categories of stimuli such as angry faces and reward-associated target locations. Recent evidence further indicates that objects that have gained personal significance through ownership can elicit similar attentional prioritization. Here we discuss current research on sources of attentional prioritization that shape our awareness of the visual world from moment to moment and the underlying neural systems and contextualize what is known about attentional prioritization of our possessions within that research...
November 29, 2016: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/27895606/being-in-a-romantic-relationship-is-associated-with-reduced-gray-matter-density-in-striatum-and-increased-subjective-happiness
#4
Hiroaki Kawamichi, Sho K Sugawara, Yuki H Hamano, Kai Makita, Masahiro Matsunaga, Hiroki C Tanabe, Yuichi Ogino, Shigeru Saito, Norihiro Sadato
Romantic relationship, a widespread feature of human society, is one of the most influential factors in daily life. Although stimuli related to romantic love or being in a romantic relationship commonly result in enhancement of activation or functional connectivity of the reward system, including the striatum, the structure underlying romantic relationship-related regions remain unclear. Because individual experiences can alter gray matter within the adult human brain, we hypothesized that romantic relationship is associated with structural differences in the striatum related to the positive subjective experience of being in a romantic relationship...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27894969/the-types-and-aspects-of-front-of-pack-food-labelling-schemes-preferred-by-adults-and-children
#5
Simone Pettigrew, Zenobia Talati, Caroline Miller, Helen Dixon, Bridget Kelly, Kylie Ball
There is strong interest in front-of-pack labels (FoPLs) as a potential mechanism for improving diets, and therefore health, at the population level. The present study examined Australian consumers' preferences for different types and attributes of FoPLs to provide additional insights into optimal methods of presenting nutrition information on the front of food packets. Much research to date has focused on two main types of FoPLs - those expressing daily intake values for specific nutrients and those utilising 'traffic light' colour coding...
November 25, 2016: Appetite
https://www.readbyqxmd.com/read/27890590/can-cleanerfish-overcome-temptation-a-selective-role-for-dopamine-influence-on-cooperative-based-decision-making
#6
Marta C Soares, Sónia C Cardoso, João T Malato, João P M Messias
Evidence suggests that animals are selected to make accurate choices and prioritize goals within the constraints of a given social environment to maximize fitness. These decisions are mostly based on complex processes in which value is linked to reward and cues may carry variable incentive salience. However, the level in which the incentive elicited by a cue is able to shift individual choices should differ between individuals and neurophysiological states. Here we used a notorious cooperative cleanerfish species Labroides dimidiatus to probe for differences in the incentive motivational valences given to food cues and then tested for the role of the dopaminergic system in the appraisal of such cues...
November 24, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27889465/the-role-of-oxytocin-in-modulating-interpersonal-space-a-pharmacological-fmri-study
#7
Daniela Cohen, Anat Perry, Gadi Gilam, Naama Mayseless, Tal Gonen, Talma Hendler, Simone G Shamay-Tsoory
Interpersonal space is a nonverbal indicator of affiliation and closeness. In this study we investigated the effects of oxytocin (OT), a neuropeptide known for its social role in humans, on interpersonal space. In a double blind placebo controlled study we measured the effect of intranasal OT on the personal distance preferences of different familiar (friend) and unfamiliar (stranger) protagonists. Behavioral results showed that participants preferred to be closer to a friend than to a stranger. Intranasal OT was associated with an overall distancing effect, but this effect was significant for the stranger and not for the friend...
November 10, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27881769/sex-in-context-limitations-of-animal-studies-for-addressing-human-sex-gender-neurobehavioral-health-disparities
#8
Lise Eliot, Sarah S Richardson
Many brain and behavioral disorders differentially affect men and women. The new National Institutes of Health requirement to include both male and female animals in preclinical studies aims to address such health disparities, but we argue that the mandate is not the best solution to this problem. Sex differences are highly species-specific, tied to the mating system and social ecology of a given species or even strain of animal. In many cases, animals poorly replicate male-female differences in brain-related human diseases...
November 23, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27880850/visual-enhancement-of-illusory-phenomenal-accents-in-non-isochronous-auditory-rhythms
#9
Yi-Huang Su
Musical rhythms encompass temporal patterns that often yield regular metrical accents (e.g., a beat). There have been mixed results regarding perception as a function of metrical saliency, namely, whether sensitivity to a deviant was greater in metrically stronger or weaker positions. Besides, effects of metrical position have not been examined in non-isochronous rhythms, or with respect to multisensory influences. This study was concerned with two main issues: (1) In non-isochronous auditory rhythms with clear metrical accents, how would sensitivity to a deviant be modulated by metrical positions? (2) Would the effects be enhanced by multisensory information? Participants listened to strongly metrical rhythms with or without watching a point-light figure dance to the rhythm in the same meter, and detected a slight loudness increment...
2016: PloS One
https://www.readbyqxmd.com/read/27868365/the-salience-of-the-self-self-referential-processing-and-internalizing-problems-in-children-and-adolescents-with-autism-spectrum-disorder
#10
Catherine A Burrows, Lauren V Usher, Peter C Mundy, Heather A Henderson
Children and adolescents with autism spectrum disorder (ASD) demonstrate atypical processing of, and memory for, self-referenced information, which may contribute to the heightened rates of co-occurring internalizing problems. We assessed affective and cognitive aspects of self-referential processing in verbally-fluent children with ASD (N = 79), and an age-matched comparison sample (COM, N = 73) of children without an autism diagnosis. We examined group differences in these two aspects of the self-system, and their joint contributions to individual differnces in internalizing problems...
November 20, 2016: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/27852803/attention-like-processes-in-insects
#11
REVIEW
Vivek Nityananda
Attention is fundamentally important for sensory systems to focus on behaviourally relevant stimuli. It has therefore been an important field of study in human psychology and neuroscience. Primates, however, are not the only animals that might benefit from attention-like processes. Other animals, including insects, also have to use their senses and select one among many stimuli to forage, avoid predators and find mates. They have evolved different mechanisms to reduce the information processed by their brains to focus on only relevant stimuli...
November 16, 2016: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/27828048/efficient-compressed-imaging-method-for-a-microsatellite-optical-camera
#12
Jin Li, Zilong Liu
Imaging integrated with compression is considered the holy grail of microsatellite photography because it improves the degree of integration of the camera system, removing the compression system, high capacity storage system, and high-speed image transmission system, which consume lots of resources of the satellite platform. In this paper, we propose an efficient compressed imaging method for remote sensing photography. We consider wavelet coefficients as pixels of a block-wise megapixel sensor (BMPS). We integrate the saliency information stage into the BMPS to perform compressed sampling (CS) in order to further improve imaging performance...
October 1, 2016: Applied Optics
https://www.readbyqxmd.com/read/27826261/inhibition-underlies-the-effect-of-high-need-for-closure-on-cultural-closed-mindedness-under-mortality-salience
#13
Dmitrij Agroskin, Eva Jonas, Johannes Klackl, Mike Prentice
The hypothesis that people respond to reminders of mortality with closed-minded, ethnocentric attitudes has received extensive empirical support, largely from research in the Terror Management Theory (TMT) tradition. However, the basic motivational and neural processes that underlie this effect remain largely hypothetical. According to recent neuropsychological theorizing, mortality salience (MS) effects on cultural closed-mindedness may be mediated by activity in the behavioral inhibition system (BIS), which leads to passive avoidance and decreased approach motivation...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27818626/arousal-rather-than-basic-emotions-influence-long-term-recognition-memory-in-humans
#14
Artur Marchewka, Marek Wypych, Abnoos Moslehi, Monika Riegel, Jarosław M Michałowski, Katarzyna Jednoróg
Emotion can influence various cognitive processes, however its impact on memory has been traditionally studied over relatively short retention periods and in line with dimensional models of affect. The present study aimed to investigate emotional effects on long-term recognition memory according to a combined framework of affective dimensions and basic emotions. Images selected from the Nencki Affective Picture System were rated on the scale of affective dimensions and basic emotions. After 6 months, subjects took part in a surprise recognition test during an fMRI session...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/27816780/adolescent-neural-response-to-reward-is-related-to-participant-sex-and-task-motivation
#15
Gabriela Alarcón, Anita Cservenka, Bonnie J Nagel
Risky decision making is prominent during adolescence, perhaps contributed to by heightened sensation seeking and ongoing maturation of reward and dopamine systems in the brain, which are, in part, modulated by sex hormones. In this study, we examined sex differences in the neural substrates of reward sensitivity during a risky decision-making task and hypothesized that compared with girls, boys would show heightened brain activation in reward-relevant regions, particularly the nucleus accumbens, during reward receipt...
November 2, 2016: Brain and Cognition
https://www.readbyqxmd.com/read/27803653/probing-intrinsic-resting-state-networks-in-the-infant-rat-brain
#16
Dusica Bajic, Michael M Craig, David Borsook, Lino Becerra
Resting-state functional magnetic resonance imaging (rs-fMRI) measures spontaneous fluctuations in blood oxygenation level-dependent (BOLD) signal in the absence of external stimuli. It has become a powerful tool for mapping large-scale brain networks in humans and animal models. Several rs-fMRI studies have been conducted in anesthetized and awake adult rats, reporting consistent patterns of brain activity at the systems level. However, the evolution to adult patterns of resting-state activity has not yet been evaluated and quantified in the developing rat brain...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/27799079/what-is-orgasm-a-model-of-sexual-trance-and-climax-via-rhythmic-entrainment
#17
Adam Safron
Orgasm is one of the most intense pleasures attainable to an organism, yet its underlying mechanisms remain poorly understood. On the basis of existing literatures, this article introduces a novel mechanistic model of sexual stimulation and orgasm. In doing so, it characterizes the neurophenomenology of sexual trance and climax, describes parallels in dynamics between orgasms and seizures, speculates on possible evolutionary origins of sex differences in orgasmic responding, and proposes avenues for future experimentation...
2016: Socioaffective Neuroscience & Psychology
https://www.readbyqxmd.com/read/27797007/big-and-small-numbers-empirical-support-for-a-single-flexible-mechanism-for-numerosity-perception
#18
Rakesh Sengupta, S Bapiraju, David Melcher
The existence of perceptually distinct numerosity ranges has been proposed for small (i.e., subitizing range) and larger numbers based on differences in precision, Weber fractions, and reaction times. This raises the question of whether such dissociations reflect distinct mechanisms operating across the two numerosity ranges. In the present work, we explore the predictions of a single-layer recurrent on-center, off-surround network model of attentional priority that has been applied to object individuation and enumeration...
October 28, 2016: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/27793769/oxytocin-receptors-modulate-a-social-salience-neural-network-in-male-prairie-voles
#19
Zachary V Johnson, Hasse Walum, Yao Xiao, Paula C Riefkohl, Larry J Young
Social behavior is regulated by conserved neural networks across vertebrates. Variation in the organization of neuropeptide systems across these networks is thought to contribute to individual and species diversity in network function during social contexts. For example, oxytocin (OT) is an ancient neuropeptide that binds to OT receptors (OTRs) in the brain and modulates social and reproductive behavior across vertebrate species, including humans. Central OTRs exhibit extraordinarily diverse expression patterns that are associated with individual and species differences in social behavior...
October 26, 2016: Hormones and Behavior
https://www.readbyqxmd.com/read/27782561/note-a-manifold-ranking-based-saliency-detection-method-for-camera
#20
Libo Zhang, Yihan Sun, Tiejian Luo, Mohammad Muntasir Rahman
Research focused on salient object region in natural scenes has attracted a lot in computer vision and has widely been used in many applications like object detection and segmentation. However, an accurate focusing on the salient region, while taking photographs of the real-world scenery, is still a challenging task. In order to deal with the problem, this paper presents a novel approach based on human visual system, which works better with the usage of both background prior and compactness prior. In the proposed method, we eliminate the unsuitable boundary with a fixed threshold to optimize the image boundary selection which can provide more precise estimations...
September 2016: Review of Scientific Instruments
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