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https://www.readbyqxmd.com/read/28818429/exposure-shapes-the-perception-of-affective-touch
#1
Uta Sailer, Rochelle Ackerley
Touch is a common occurrence in our lives, where affective and inter-personal aspects of touch are important for our well-being. We investigated whether touch exposure affects hedonic and discriminative aspects of tactile perception. The perceived pleasantness and intensity of gentle forearm stroking, over different velocities, was assessed in individuals reporting to seldom receive inter-personal touch, and in controls who received touch often. The groups did not differ in their stroking intensity judgements, nor in tactile discrimination sensitivity; however, individuals with low touch exposure evaluated the pleasantness of touch differently...
August 9, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28817305/foot-massage-touch-and-presence-in-decreasing-anxiety-during-a-magnetic-resonance-imaging-a-feasibility-study
#2
Rajni Parmar, Barbara B Brewer, Laura A Szalacha
OBJECTIVES: The purpose of the study was to determine (1) recruitment feasibility; (2) intervention adherence; (3) intervention acceptability; and (4) the preliminary effects of touch or foot massage interventions on anxiety during a magnetic resonance imaging (MRI). DESIGN: A quasi-experimental design was used. INTERVENTION: Foot massage and touch were the intervention groups and "presence" was the control group. SETTING: The study was conducted at the Center for Neurosciences, a freestanding facility, in southern Arizona...
August 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28810928/gait-characteristics-and-their-discriminative-power-in-geriatric-patients-with-and-without-cognitive-impairment
#3
Lisette H J C Kikkert, Nicolas Vuillerme, Jos P van Campen, Bregje A Appels, Tibor Hortobágyi, Claudine J Lamoth
BACKGROUND: A detailed gait analysis (e.g., measures related to speed, self-affinity, stability, and variability) can help to unravel the underlying causes of gait dysfunction, and identify cognitive impairment. However, because geriatric patients present with multiple conditions that also affect gait, results from healthy old adults cannot easily be extrapolated to geriatric patients. Hence, we (1) quantified gait outcomes based on dynamical systems theory, and (2) determined their discriminative power in three groups: healthy old adults, geriatric patients with- and geriatric patients without cognitive impairment...
August 15, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28809011/some-thoughts-on-experimental-design
#4
Claudio D Stern
Perhaps even more important than the techniques themselves are the quality of the biological questions asked and the design of the experiments devised to answer them. This chapter summarizes some of the key issues and also touches on how the same principles affect scholarly use of the scientific literature and good peer-reviewing practices.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28807140/acute-psychological-trauma-in-the-critically-ill-patient-and-family-perspectives
#5
Volha Dziadzko, Mikhail A Dziadzko, Margaret M Johnson, Ognjen Gajic, Lioudmila V Karnatovskaia
OBJECTIVE: Post-intensive care syndrome (PICS), which encompasses profound psychological morbidity, affects many survivors of critical illness. We hypothesize that acute psychological stress during the intensive care unit (ICU) confinement likely contributes to PICS. In order to develop strategies that mitigate PICS associated psychological morbidity, it is paramount to first characterize acute ICU psychological stress and begin to understand its causative and protective factors. METHODS: A structured interview study was administered to adult critical illness survivors who received ≥48h of mechanical ventilation in medical and surgical ICUs of a tertiary care center, and their families...
July 2017: General Hospital Psychiatry
https://www.readbyqxmd.com/read/28805419/creating-space-for-relationships
#6
Susan L Maataoui, Jodi S Hardwick, Tessa S Lundquist
Sexuality is a key component of personality and behavior, encompassing basic human needs for touch, intimacy, love, affection, and sexual behavior. The design of long-term care facilities makes it almost impossible for a resident to be sexually intimate, to share romantic moments, or to have a meal in a private setting. This case study describes the rationale and process used to establish a private guestroom called the Family Room at Patriots Place, the specialized dementia unit in the Veterans Affairs (VA) Maine Healthcare System Community Living Center (CLC)...
August 2017: Psychological Services
https://www.readbyqxmd.com/read/28803830/the-effect-of-perceptual-load-on-tactile-spatial-attention-evidence-from-event-related-potentials
#7
Elena Gherri, Fiona Berreby
To investigate whether tactile spatial attention is modulated by perceptual load, behavioural and electrophysiological measures were recorded during two spatial cuing tasks in which the difficulty of the target/non-target discrimination was varied (High and Low load tasks). Moreover, to study whether attentional modulations by load are sensitive to the availability of visual information, the High and Low load tasks were carried out under both illuminated and darkness conditions. ERPs to cued and uncued non-targets were compared as a function of task (High vs...
August 10, 2017: Brain Research
https://www.readbyqxmd.com/read/28799042/spatial-numerical-associations-in-first-graders-evidence-from-a-manual-pointing-task
#8
Wenke Möhring, Masami Ishihara, Jacqueline Curiger, Andrea Frick
The current study investigated whether children's mental representations of numbers are organized spatially at the onset of formal schooling using a manual-pointing task. First-graders (N = 77) saw four numbers (1, 3, 7, 9) presented randomly in four spatial positions (extreme left, left, right, extreme right) on a touch screen. In a Go/No-Go task, children were asked to press the appearing numbers as fast and accurately as possible, but only when the numbers were "smaller" (or "larger" in a different block) than 5...
August 10, 2017: Psychological Research
https://www.readbyqxmd.com/read/28769741/detection-and-growth-pattern-of-arcuate-fasciculus-from-newborn-to-adult
#9
Molly Wilkinson, Ashley R Lim, Andrew H Cohen, Albert M Galaburda, Emi Takahashi
Fractional anisotropy (FA) threshold is commonly used to perform diffusion MRI tractography. However, FA threshold may be one aspect of tractography that needs additional scrutiny in accurately assessing pathways in immature, developing brains, as well as in adult brains. Using high-angular resolution diffusion MRI (HARDI) tractography without an FA threshold, we identified the arcuate fasciculus (AF) of 83 healthy subjects ranging in age from 40 gestational weeks (GW) (newborns) to 28-year-old adults. The AF was identified in both hemispheres in all subjects with high inter-rater reliability...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28761792/plantar-pressure-distribution-of-ostrich-during-locomotion-on-loose-sand-and-solid-ground
#10
Rui Zhang, Dianlei Han, Songsong Ma, Gang Luo, Qiaoli Ji, Shuliang Xue, Mingming Yang, Jianqiao Li
BACKGROUND: The ostrich is a cursorial bird with extraordinary speed and endurance, especially in the desert, and thus is an ideal large-scale animal model for mechanic study of locomotion on granular substrate. METHODS: The plantar pressure distributions of ostriches walking/running on loose sand/solid ground were recorded using a dynamic pressure plate. RESULTS: The center of pressure (COP) on loose sand mostly originated from the middle of the 3rd toe, which differed from the J-shaped COP trajectory on solid ground...
2017: PeerJ
https://www.readbyqxmd.com/read/28748776/knowledge-attitudes-and-practices-among-members-of-households-actively-monitored-or-quarantined-to-prevent-transmission-of-ebola-virus-disease-margibi-county-liberia-february-march-2015
#11
Jason A Wilken, Paran Pordell, Brant Goode, Rachel Jarteh, Zayzay Miller, Benjamin G Saygar, Leroy Maximore, Watta M Borbor, Moses Carmue, Gregory W Walker, Adolphus Yeiah
BACKGROUND: In early 2015, a patient from a cluster of cases of Ebola Virus Disease (EVD) in Monrovia, Liberia traveled to a rural village in Margibi County, potentially exposing numerous persons. The patient died in the village and post-mortem testing confirmed Ebola Virus infection. Problem The Margibi County Health Team (CHT; Kakata, Margibi, Liberia) needed to prevent further transmission of EVD within and outside of the affected villages, and they needed to better understand the factors that support or impede compliance with measures to stop the spread of EVD...
July 27, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28736308/laminar-fmri-what-can-the-time-domain-tell-us
#12
REVIEW
Natalia Petridou, Jeroen C W Siero
The rapid developments in functional MRI (fMRI) acquisition methods and hardware technologies in recent years, particularly at high field (≥7 T), have enabled unparalleled visualization of functional detail at a laminar or columnar level, bringing fMRI close to the intrinsic resolution of brain function. These advances highlight the potential of high resolution fMRI to be a valuable tool to study the fundamental processing performed in cortical micro-circuits, and their interactions such as feedforward and feedback processes...
July 20, 2017: NeuroImage
https://www.readbyqxmd.com/read/28732749/body-representation-disorders-predict-left-right-orientation-impairments-after-stroke-a%C3%A2-voxel-based-lesion-symptom-mapping-study
#13
Haike E van Stralen, H Chris Dijkerman, J Matthijs Biesbroek, Hugo J Kuijf, H Maarten A van Gemert, David Sluiter, L Jaap Kappelle, Martine J E van Zandvoort
INTRODUCTION: Deficits in the ability to distinguish between the left and right side of the body can severely impair daily life functioning. The current study examined the relation between left right orientation (LRO) impairments and somatosensory related deficits, ranging from primary somatosensory impairments to body representation impairments, in patients who suffered a recent stroke. We also examined which areas in the brain are associated with LRO impairments using a Voxel-based Lesion Symptom Mapping (VLSM) analysis...
June 7, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28728814/a-tour-de-force-the-discovery-properties-and-function-of-piezo-channels
#14
P A Gottlieb
Mechanical transducers appear throughout cell biology and are used to convert mechanical stress into chemical or electrical signals that allow the cell to respond to environmental changes. In the past six years, a eukaryotic mechanical channel family with two members, Piezo1 and Piezo2, has been identified. Piezo1 was shown to be a cation-selective channel that does not require ancillary proteins for activity. Mouse Piezo1 is large, with over 2500 amino acids, and is not homologous to other ion channels. Both piezo channels have rapid voltage-dependent inactivation with a reversal potential near 0mV...
2017: Current Topics in Membranes
https://www.readbyqxmd.com/read/28720904/interaction-between-trait-and-housing-condition-produces-differential-decision-making-toward-risk-choice-in-a-rat-gambling-task
#15
Wha Young Kim, Bo Ram Cho, Myung Ji Kwak, Jeong-Hoon Kim
Poor decision-making is a core problem in psychiatric disorders such as pathological gambling and substance abuse. Both trait and environmental factors are considerably important to affect decision-making. However, it has not yet been systematically shown how they interact to affect risk preference in animal models evaluating decision-making. Here, we trained rats, housed in pairs or in isolation, in a touch screen chamber to detect the association between four different light signals on the screen and accompanied reward and punishment outcomes arranged with different schedules...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717440/stigmatic-limitations-on-reproductive-success-in-a-paleotropical-tree-causes-and-consequences
#16
Madhu Raina, Raman Kumar, Veenu Kaul
Success in reproduction is subject to the successful initiation as well as successful completion of a chain of consecutive events starting from flower formation and ending with viable seed production. A pivotal role in this chain is played by the stigma which is the seat of pollen recognition and initiation of pollen-pistil interaction. An interesting feature of the family Bignoniaceae is the presence of thigmosensitive stigmas which open, close and re-open in response to touch. Kigelia pinnata bears a touch sensitive stigma and is a low fruit setter in Jammu and Kashmir (India)...
July 2017: AoB Plants
https://www.readbyqxmd.com/read/28715355/repeated-exposure-to-sucrose-for-procedural-pain-in-mouse-pups-leads-to-long-term-widespread-brain-alterations
#17
Sophie Tremblay, Manon Ranger, Cecil M Y Chau, Jacob Ellegood, Jason P Lerch, Liisa Holsti, Daniel Goldowitz, Ruth E Grunau
Oral sucrose is administered routinely to reduce pain of minor procedures in premature infants and is recommended as standard care in international guidelines. No human or animal studies on effects of early repeated sucrose exposure on long-term brain development have been done in the context of pain. We evaluated the effects of repeated neonatal sucrose treatment before an intervention on long-term brain structure in mouse pups. Neonatal C57Bl/6J mice (n = 109) were randomly assigned to one of 2 treatments (vehicle vs sucrose) and one of 3 interventions (handling, touch, or needle-prick)...
August 2017: Pain
https://www.readbyqxmd.com/read/28711591/touching-the-void-first-and-third-person-perspectives-in-two-cases-of-autobiographical-amnesia-linked-to-temporal-lobe-epilepsy
#18
Adam Zeman, Marcus Byruck, Peter Tallis, Keith Vossel, Daniel Tranel
Temporal lobe epilepsy (TLE) can be associated with a marked impairment of autobiographical memory. This is occasionally its presenting feature. We describe two individuals with severe epilepsy-associated autobiographical memory loss. Both MB and PT were reassured initially that their memory was intact on the basis of standard neuropsychological tests. Both have written detailed accounts of their symptoms. The key neuropsychological features of their cases are the relative normality of performance on standard memory tests, with preservation of semantic memory for impersonal information, in contrast to a profound amnesia for salient autobiographical episodes and an impoverishment of imaginative scene construction...
July 13, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28710056/health-related-coping-and-social-interaction-in-people-with-multiple-sclerosis-supported-by-a-social-network-pilot-study-with-a-new-methodological-approach
#19
Luigi Lavorgna, Antonio Russo, Manuela De Stefano, Roberta Lanzillo, Sabrina Esposito, Fatemeh Moshtari, Francesco Rullani, Kyrie Piscopo, Daniela Buonanno, Vincenzo Brescia Morra, Antonio Gallo, Gioacchino Tedeschi, Simona Bonavita
BACKGROUND: Social media are a vital link for people with health concerns who find in Web communities a valid and comforting source for information exchange, debate, and knowledge enrichment. This aspect is important for people affected by chronic diseases like multiple sclerosis (MS), who are very well informed about the disease but are vulnerable to hopes of being cured or saved by therapies whose efficacy is not always scientifically proven. To improve health-related coping and social interaction for people with MS, we created an MS social network (SMsocialnetwork...
July 14, 2017: Interactive Journal of Medical Research
https://www.readbyqxmd.com/read/28708654/the-status-of-affected-infraorbital-nerve-and-inferior-alveolar-nerve-in-patients-with-jaw-fibrous-dysplasia-a-clinical-and-radiographic-evaluation
#20
Zhen Du, Yifeng Jiang, Long Chen
The affected infraorbital nerve (IFBN) and inferior alveolar nerve (IFAN) status in patients with jaw fibrous dysplasia has not been definitely depicted. In this study, the authors try to explore the status of affected IFBN and IFAN in patients with jaw fibrous dysplasia. Ten patients with jaw fibrous dysplasia were included in this study. The complaints of numbness in the IFBA and IFAN innervated area were asked and recorded, and careful clinical examination was performed to evaluate the touch sense, pain sense, pressure sense, and temperature sense in the IFBA and IFAN innervated areas...
July 13, 2017: Journal of Craniofacial Surgery
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