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affective touch

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https://www.readbyqxmd.com/read/28326030/expansion-of-perceptual-body-maps-near-but-not-across-the-wrist
#1
Matthew R Longo
Perceiving the external spatial location of touch requires that tactile information about the stimulus location on the skin be integrated with proprioceptive information about the location of the body in external space, a process called tactile spatial remapping. Recent results have suggested that this process relies on a distorted representation of the hand. Here, I investigated whether similar distortions are also found on the forearm and how they are affected by the presence of the wrist joint, which forms a categorical, segmental boundary between the hand and the arm...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28322914/computer-aided-prediction-of-extent-of-motor-recovery-following-constraint-induced-movement-therapy-in-chronic-stroke
#2
Sarah Hulbert George, Mohammad Hossein Rafiei, Lynne Gauthier, Alexandra Borstad, John A Buford, Hojjat Adeli
Constraint-induced movement therapy (CI therapy) is a well-researched intervention for treatment of upper limb function. Overall, CI therapy yields clinically meaningful improvements in speed of task completion and greatly increases use of the more affected upper extremity for daily activities. However, individual improvements vary widely. It has been suggested that intrinsic feedback from somatosensation may influence motor recovery from CI therapy. To test this hypothesis, an enhanced probabilistic neural network (EPNN) prognostic computational model was developed to identify which baseline characteristics predict extent of motor recovery, as measured by the Wolf Motor Function Test (WMFT)...
March 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28320425/patient-compliance-with-touchdown-weight-bearing-after-microfracture-treatment-of-talar-osteochondral-lesions
#3
Gökhan Polat, Gökhan Karademir, Ekin Akalan, Mehmet Aşık, Mehmet Erdil
BACKGROUND: The aim of this study was to prospectively evaluate the compliance of our patients with a touchdown weight bearing (without supporting any weight on the affected side by only touching the plantar aspect of the foot to the ground to maintain balance to protect the affected side from mechanical loading) postoperative rehabilitation protocol after treatment of talar osteochondral lesion (TOL). METHODS: Fourteen patients, who had been treated with arthroscopic debridement and microfracture, were followed prospectively...
March 20, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28318450/repeated-sprints-in-fasted-state-impair-reaction-time-performance
#4
Anissa Cherif, Romain Meeusen, Abdulaziz Farooq, Walid Briki, Mohamed Amine Fenneni, Karim Chamari, Bart Roelands
OBJECTIVE: The aim of this study was to assess the effects of 3-day Islamic intermittent fasting (3d-IF) on cognitive performance and serum levels of neurotrophic factors (brain-derived neurotrophic factor [BDNF] and vascular endothelial growth factor [VEGF]) before and after repeated sprints. METHODS: Twenty-one physically active male Muslims (29.8 ± 5.9 years, exercising 4 ± 1.5 times/week) were randomly assigned to one of 2 experimental sessions: the control or nonfasting session (CS) or the fasting session (FS)...
March 20, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28292727/analysis-of-dna-from-post-blast-pipe-bomb-fragments-for-identification-and-determination-of-ancestry
#5
Esiri Tasker, Bobby LaRue, Charity Beherec, David Gangitano, Sheree Hughes-Stamm
Improvised explosive devices (IEDs) such as pipe bombs are weapons used to detrimentally affect people and communities. A readily accessible brand of exploding targets called Tannerite® has been identified as a potential material for abuse as an explosive in pipe bombs. The ability to recover and genotype DNA from such weapons may be vital in the effort to identify suspects associated with these devices. While it is possible to recover DNA from post-blast fragments using short tandem repeat markers (STRs), genotyping success can be negatively affected by low quantities of DNA, degradation, and/or PCR inhibitors...
March 1, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28289799/does-affective-touch-influence-the-virtual-reality-full-body-illusion
#6
Jutta R de Jong, Anouk Keizer, Manja M Engel, H Chris Dijkerman
The sense of how we experience our physical body as our own represents a fundamental component of human self-awareness. Body ownership can be studied with bodily illusions which are generated by inducing a visuo-tactile conflict where individuals experience illusionary ownership over a fake body or body part, such as a rubber hand. Previous studies showed that different types of touch modulate the strength of experienced ownership over a rubber hand. Specifically, participants experienced more ownership after the rubber hand illusion was induced through affective touch vs non-affective touch...
March 13, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28289358/pattern-of-high-voltage-electrical-injuries-in-the-kashmir-valley-a-10-year-single-centre-experience
#7
R A Kasana, P U F Baba, A H Wani
The objective was to study the clinical profile of high voltage electrical injuries in Kashmir, and various prevention and safety measures to bring down the incidence of such injuries in the future. All patients (176) with high voltage electrical injuries reporting to our centre from January 2001 to December 2010 were included in the study. The most common age group was 20-40 years, with mean age of 29.77 ± 8.98 years. Incidence was higher among the rural population (68.75%) than in urban areas (31.25%), and in the winter months...
December 31, 2016: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/28283694/different-haptic-tools-reduce-trunk-velocity-in-the-frontal-plane-during-walking-but-haptic-anchors-have-advantages-over-lightly-touching-a-railing
#8
Isabel Hedayat, Renato Moraes, Joel L Lanovaz, Alison R Oates
There are different ways to add haptic input during walking which may affect walking balance. This study compared the use of two different haptic tools (rigid railing and haptic anchors) and investigated whether any effects on walking were the result of the added sensory input and/or the posture generated when using those tools. Data from 28 young healthy adults were collected using the Mobility Lab inertial sensor system (APDM, Oregon, USA). Participants walked with and without both haptic tools and while pretending to use both haptic tools (placebo trials), with eyes opened and eyes closed...
March 10, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28282451/c-tactile-afferent-stimulating-touch-carries-a-positive-affective-value
#9
Ralph Pawling, Peter R Cannon, Francis P McGlone, Susannah C Walker
The rewarding sensation of touch in affiliative interactions is hypothesized to be underpinned by a specialized system of nerve fibers called C-Tactile afferents (CTs), which respond optimally to slowly moving, gentle touch, typical of a caress. However, empirical evidence to support the theory that CTs encode socially relevant, rewarding tactile information in humans is currently limited. While in healthy participants, touch applied at CT optimal velocities (1-10cm/sec) is reliably rated as subjectively pleasant, neuronopathy patients lacking large myelinated afferents, but with intact C-fibres, report that the conscious sensation elicited by stimulation of CTs is rather vague...
2017: PloS One
https://www.readbyqxmd.com/read/28276976/anchoring-effects-on-early-autobiographical-memories
#10
Daniel L Greenberg, Anthony J Bishara, Marino A Mugayar-Baldocchi
Studies of childhood memory typically show that our earliest memories come from between three and four years of age. This finding is not universal, however. The age estimate varies across cultures and is affected by social influences. Research from the judgments and decision-making literature suggests that these estimates might also involve a judgment under uncertainty. Therefore, they might be susceptible to less social influences such as heuristics and biases. To investigate this possibility, we conducted two experiments that used anchoring paradigms to influence participants' estimates of their age during early autobiographical memories...
February 28, 2017: Memory
https://www.readbyqxmd.com/read/28275346/manipulating-bodily-presence-affects-cross-modal-spatial-attention-a-virtual-reality-based-erp-study
#11
Ville J Harjunen, Imtiaj Ahmed, Giulio Jacucci, Niklas Ravaja, Michiel M Spapé
Earlier studies have revealed cross-modal visuo-tactile interactions in endogenous spatial attention. The current research used event-related potentials (ERPs) and virtual reality (VR) to identify how the visual cues of the perceiver's body affect visuo-tactile interaction in endogenous spatial attention and at what point in time the effect takes place. A bimodal oddball task with lateralized tactile and visual stimuli was presented in two VR conditions, one with and one without visible hands, and one VR-free control with hands in view...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28269067/on-the-pleasantness-of-a-haptic-stimulation-how-different-textures-can-be-recognized-through-heart-rate-variability-nonlinear-analysis
#12
Mimma Nardelli, Alberto Greco, Matteo Bianchi, Enzo Pasquale Scilingo, Gaetano Valenza
The hedonic attributes of cutaneous elicitation play a crucial role in everyday life, influencing our behavior and psychophysical state. However, the correlation between such a hedonic aspect of touch and the Autonomic Nervous System (ANS)-related physiological response, which is intimately connected to emotions, still needs to be deeply investigated. This study reports on caress-like stimuli conveyed to the forearm of 32 healthy subjects through different fabrics actuated by a haptic device, which can control both the strength (i...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263013/slow-brushing-reduces-heat-pain-in-humans
#13
J Liljencrantz, I Strigo, D M Ellingsen, H H Krämer, L C Lundblad, S S Nagi, S Leknes, H Olausson
BACKGROUND: C-tactile (CT) afferents are unmyelinated low-threshold mechanoreceptors optimized for signalling affective, gentle touch. In three separate psychophysical experiments, we examined the contribution of CT afferents to pain modulation. METHODS: In total, 44 healthy volunteers experienced heat pain and CT optimal (slow brushing) and CT sub-optimal (fast brushing or vibration) stimuli. Three different experimental paradigms were used: Concurrent application of heat pain and tactile (slow brushing or vibration) stimulation; Slow brushing, applied for variable duration and intervals, preceding heat pain; Slow versus fast brushing preceding heat pain...
March 6, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28261075/prefrontal-electrical-stimulation-in-non-depressed-reduces-levels-of-reported-negative-affects-from-daily-stressors
#14
REVIEW
Nick J Davis
Advances in neuroscience and pharmacology have led to improvements in the cognitive performance of people with neurological disease and other forms of cognitive decline. These same methods may also afford cognitive enhancement in people of otherwise normal cognitive abilities. "Cosmetic", or supranormal, cognitive enhancement offers opportunities to enrich our social or financial status, our interactions with others, and the common wealth of our community. It is common to focus on the potential benefits of cognitive enhancement, while being less than clear about the possible drawbacks...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28259727/vision-of-the-body-improves-inter-hemispheric-integration-of-tactile-motor-responses
#15
Luigi Tamè, Alex Carr, Matthew R Longo
Sensory input from and motor output to the two sides of the body needs to be continuously integrated between the two cerebral hemispheres. This integration can be measured through its cost in terms of processing speed. In simple detection tasks, reaction times (RTs) are faster when stimuli are presented to the side of the body ipsilateral to the body part used to respond. This advantage - the contralateral-ipsilateral difference (also known as the crossed-uncrossed difference: CUD) - is thought to reflect inter-hemispheric interactions needed for sensorimotor information to be integrated between the two hemispheres...
March 2, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28254638/deliberately-light-interpersonal-contact-affects-the-control-of-head-stability-during-walking-in-children-and-adolescents-with-cerebral-palsy
#16
Katrin Hanna Schulleri, Frauke Burfeind, Beate Höß-Zenker, Éva Feketené Szabó, Nadine Herzig, Annick Ledebt, Leif Johannsen
OBJECTIVE: To evaluate the potential of deliberately light interpersonal touch (IPT) for reducing excessive head and trunk sway during self-paced walking in children and adolescents with cerebral palsy (CP). DESIGN: Quasi-experimental, proof-of-concept study with between-groups comparison. SETTING: Ambulant care facility, community center. PARTICIPANTS: 26 individuals with CP (spastic and ataxic; GMFCS I-III; mean=9...
February 27, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28249090/performance-of-vascular-exposure-and-fasciotomy-among-surgical-residents-before-and-after-training-compared-with-experts
#17
Colin F Mackenzie, Evan Garofalo, Adam Puche, Hegang Chen, Kristy Pugh, Stacy Shackelford, Samuel Tisherman, Sharon Henry, Mark W Bowyer
Importance: Surgical patient outcomes are related to surgeon skills. Objective: To measure resident surgeon technical and nontechnical skills for trauma core competencies before and after training and up to 18 months later and to compare resident performance with the performance of expert traumatologists. Design, Setting, and Participants: This longitudinal study performed from May 1, 2013, through February 29, 2016, at Maryland State Anatomy Board cadaver laboratories included 40 surgical residents and 10 expert traumatologists...
March 1, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28227284/on-the-pleasantness-of-a-haptic-stimulation-how-different-textures-can-be-recognized-through-heart-rate-variability-nonlinear-analysis
#18
Mimma Nardelli, Alberto Greco, Matteo Bianchi, Enzo Pasquale Scilingo, Gaetano Valenza, Mimma Nardelli, Alberto Greco, Matteo Bianchi, Enzo Pasquale Scilingo, Gaetano Valenza, Gaetano Valenza, Mimma Nardelli, Alberto Greco, Matteo Bianchi
The hedonic attributes of cutaneous elicitation play a crucial role in everyday life, influencing our behavior and psychophysical state. However, the correlation between such a hedonic aspect of touch and the Autonomic Nervous System (ANS)-related physiological response, which is intimately connected to emotions, still needs to be deeply investigated. This study reports on caress-like stimuli conveyed to the forearm of 32 healthy subjects through different fabrics actuated by a haptic device, which can control both the strength (i...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28221845/occurrence-and-dispersal-of-indicator-bacteria-on-cucumbers-grown-horizontally-or-vertically-on-various-mulch-types
#19
Shirley A Micallef, Mary Theresa Callahan, Sivaranjani Pagadala
No data exist on the impact of cultivation practices on food safety risks associated with cucumber. Cucumbers are typically grown horizontally over a mulch cover, with fruit touching the ground, but this vining plant grows well in vertical systems. To assess whether production system affects bacterial dispersal onto plants, field trials were conducted over 2 years. Cucumber cultivar 'Marketmore 76' was grown horizontally on plastic, straw, or bare ground or vertically on trellises installed on bare ground in soil previously amended with raw dairy manure...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28213690/anticipatory-postural-adjustments-associated-with-reaching-movements-are-programmed-according-to-the-availability-of-visual-information
#20
Roberto Esposti, Carlo Bruttini, Francesco Bolzoni, Paolo Cavallari
During goal-directed arm movements, the eyes, head, and arm are coordinated to look at and reach the target. We examined whether the expectancy of visual information about the target modifies Anticipatory Postural Adjustments (APAs). Ten standing subjects had to (1) move the eyes, head and arm, so as to reach, with both gaze and index-finger, a target of known position placed outside their visual field (Gaze-Reach); (2) look at the target while reaching it (Reach in Full Vision); (3) keep the gaze away until having touched it (Reach then Gaze) and (4) just Gaze without Reach the target...
February 17, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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