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https://www.readbyqxmd.com/read/28921770/does-an-observer-s-empathy-influence-my-pain-effect-of-perceived-empathetic-or-unempathetic-support-in-a-pain-test
#1
C Fauchon, I Faillenot, A M Perrin, C Borg, V Pichot, F Chouchou, L Garcia-Larrea, R Peyron
The physiological and behavioural effects of empathy for other's pain have been widely investigated, while the opposite situation, i.e. the influence on one's pain of empathetic feedback from others, remains largely unexplored. Here, we assessed whether and how empathetic and unempathetic comments from observers modulate pain and associated vegetative reactions. In Study 1, conversations between observers of a pain study were recorded by professional actors. Comments were prepared to be perceived as empathetic, unempathetic, or neutral, and were validated in 40 subjects...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921721/effects-of-the-availability-of-accurate-proprioceptive-information-on-older-adults-postural-sway-and-muscle-co-contraction
#2
Chesney E Craig, Glenn H M Calvert, Michail Doumas
During conditions of increased postural instability, older adults exhibit greater lower-limb muscle co-contraction. This response has been interpreted as a compensatory postural strategy, which may be used to i006Ecrease proprioceptive information from muscle spindles or to stiffen the lower limb as a general response to minimise postural sway. The current study aimed to test these two hypotheses by investigating use of muscle co-contraction during sensory transitions that manipulated proprioceptive input. Surface EMG was recorded from the bilateral tibialis anterior and gastrocnemius medialis muscles, in young (aged 18-30) and older adults (aged 68-80) during blind-folded postural assessment...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28920407/effect-of-mechanically-deboned-poultry-meat-content-on-technological-properties-and-sensory-characteristics-of-lamb-and-mutton-sausages
#3
Armando Abel Massingue, Robledo de Almeida Torres Filho, Paulo Rogerio Fontes, Alcinéia de Souza Ramos, Edimar Aparecida Filomeno Fontes, Juan Ramon Olalquiaga Perez, Eduardo Mendes Ramos
Objective: This study aimed to develop a value-added product concerning technological and sensory characteristics changes of the use of mechanically deboned poultry meat (MDPM) as meat replacer in lamb and mutton emulsion-type sausages (mortadella). Methods: Sausages were produced with lamb and mutton and with different contents of MDPM. Six treatments, using lamb or mutton and 0, 30% and 60% of MDPM in relation to the meat batter, were produced and analyzed for pH, proximal composition, calcium and residual nitrite content, water activity, TBA reactive substances (TBARS), instrumental color and texture profile...
September 18, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28920069/assessment-of-thermal-pain-sensation-in-rats-and-mice-using-the-hargreaves-test
#4
Menghon Cheah, James W Fawcett, Melissa R Andrews
The Hargreaves test is specifically designed to assess thermal pain sensation in rodents such as rats and mice. This test has been used in experiments involving pain sensitization or recovery of thermal pain response following neural injury and regeneration. We present here a step-by-step protocol highlighted with important notes to guide first-time users through the learning process. Additionally, we have also included representative data from a rat model of sensory denervation showing how the data can be analysed to obtain meaningful results...
August 20, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28919806/how-stable-are-quantitative-sensory-testing-measurements-over-time-report-on-10-week-reliability-and-agreement-of-results-in-healthy-volunteers
#5
Helen Nothnagel, Christian Puta, Thomas Lehmann, Philipp Baumbach, Martha B Menard, Brunhild Gabriel, Holger H W Gabriel, Thomas Weiss, Frauke Musial
BACKGROUND: Quantitative sensory testing (QST) is a diagnostic tool for the assessment of the somatosensory system. To establish QST as an outcome measure for clinical trials, the question of how similar the measurements are over time is crucial. Therefore, long-term reliability and limits of agreement of the standardized QST protocol of the German Research Network on Neuropathic Pain were tested. METHODS: QST on the lower back and hand dorsum (dominant hand) were assessed twice in 22 healthy volunteers (10 males and 12 females; mean age: 46...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28918457/effects-of-menthol-and-its-interaction-with-nicotine-conditioned-cue-on-nicotine-seeking-behavior-in-rats
#6
Erin Harrison, Lisa Biswas, Ramachandram Avusula, Meiyu Zhang, Yongzhen Gong, Xiu Liu
RATIONALE: Increasing clinical evidence suggests that menthol, a significant flavoring additive in tobacco products, may contribute to smoking and nicotine dependence. Relapse to smoking behavior presents a formidable challenge for the treatment of tobacco addiction. An unresolved issue is whether the mentholation of tobacco products precipitates relapse to tobacco use in abstinent smokers. OBJECTIVES: The present study examined the effects of menthol on the perseverance and relapse of nicotine-seeking behavior in rats...
September 16, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28917798/perception-of-olive-oils-sensory-defects-using-a-potentiometric-taste-device
#7
Ana C A Veloso, Lucas M Silva, Nuno Rodrigues, Ligia P G Rebello, Luís G Dias, José A Pereira, António M Peres
The capability of perceiving olive oils sensory defects and intensities plays a key role on olive oils quality grade classification since olive oils can only be classified as extra-virgin if no defect can be perceived by a human trained sensory panel. Otherwise, olive oils may be classified as virgin or lampante depending on the median intensity of the defect predominantly perceived and on the physicochemical levels. However, sensory analysis is time-consuming and requires an official sensory panel, which can only evaluate a low number of samples per day...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28916394/a-useful-strategy-based-on-chromatographic-data-combined-with-quality-by-design-approach-for-food-analysis-applications-the-case-study-of-furanic-derivatives-in-sugarcane-honey
#8
Pedro Silva, Catarina L Silva, Rosa Perestrelo, Fernando M Nunes, José S Câmara
Sugarcane honey (SCH) is one of the Madeira Island products par excellence and it is now popular worldwide. Its sui generis and peculiar sensory properties, explained by a variety of volatile compounds including furanic derivatives (FDs), arise mainly from manufacturing and storage conditions. A simple high-throughput approach based on semi-automatic microextraction by packed sorbent (MEPS) combined with ultra-high performance liquid chromatography (UHPLC) was developed and validated for identification and quantification of target FDs in sugarcane honey...
September 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28916208/intra-and-inter-session-reliability-of-traditional-and-entropy-based-variables-describing-stance-on-a-wobble-board
#9
Lucia Bizovska, Miroslav Janura, Zdenek Svoboda, Martin Cerny, Jana Krohova, Maros Smondrk
A wobble board (WB) is a balance rehabilitation tool that is used in physiotherapy to improve strength and stability. The WB tested in this study includes a sensory module for measuring patients' tilt and rotation during stance. The aim of this study was to assess the reliability and validity of a balance measurement using a WB. Thirty healthy young adults participated in this study. The participants stood on the WB to simultaneously record the tilt of the WB and the center of pressure data using a force plate...
September 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28915093/sport-skill-specific-expertise-biases-sensory-integration-for-spatial-referencing-and-postural-control
#10
Michalis Thalassinos, Giorgos Fotiadis, Fotini Arabatzi, Brice Isableu, Vassilia Hatzitaki
The authors asked how sport expertise modulates visual field dependence and sensory reweighting for controlling posture. Experienced soccer athletes, ballet dancers, and nonathletes performed (a) a Rod and Frame test and (b) a 100-s bipedal stance task during which vision and proprioception were successively or concurrently disrupted in 20-s blocks. Postural adaptation was assessed in the mean center of pressure displacement, root mean square of center of pressure velocity and ankle muscles integrated electromyography activity...
September 15, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28914718/balance-evaluation-of-prefrail-and-frail-community-dwelling-older-adults
#11
Larissa Tomasauskas Marques, Natalia Camargo Rodrigues, Emanuella Oliveira Angeluni, Fernanda Pinheiro Amador Dos Santos Pessanha, Natália Maira da Cruz Alves, Renato Campos Freire Júnior, Eduardo Ferriolli, Daniela Cristina Carvalho de Abreu
BACKGROUND AND PURPOSE: With the increase in the percentage of the population in older adulthood, issues such as frailty syndrome need to be considered. The aim of the present study was to evaluate the ability of the Balance Evaluation Systems Test (BESTest) and center of pressure (COP) in their ability to discriminate between nonfrail, prefrail, and frail older adults. The proposed hypothesis is that frail older adults would show poorer performance in BESTest tasks and higher oscillation of COP on a force platform...
September 13, 2017: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/28912959/research-protocol-for-a-complex-intervention-to-support-hearing-and-vision-function-to-improve-the-lives-of-people-with-dementia
#12
Iracema Leroi, Annie Pye, Christopher J Armitage, Anna Pavlina Charalambous, Fofi Constantinidou, Catherine Helmer, Ines Himmelsbach, Sarah Marié, Jahanara Miah, Suzanne Parsons, Jemma Regan, Chryssoula Thodi, Lucas Wolski, Abebaw Mengistu Yohannes, Piers Dawes
BACKGROUND: Hearing and vision impairments are among the most common and disabling comorbidities in people living with dementia. Intervening to improve sensory function could be a means by which the lives of people living with dementia may be improved. However, very few studies have tried to ameliorate outcomes in dementia by improving sensory function. This paper describes the multi-step development of a new intervention designed to support hearing and vision function in people living with dementia in their own homes...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28912703/the-influence-of-external-forces-on-wrist-proprioception
#13
Francesca Marini, Sara Contu, Chris W Antuvan, Pietro Morasso, Lorenzo Masia
Proprioception combines information from cutaneous, joint, tendon, and muscle receptors for maintaining a reliable internal body image. However, it is still a matter of debate, in both neurophysiology and psychology, to what extent such body image is modified or distorted by a changing haptic environment. In particular, what is worth investigating is the contribution of external forces on our perception of body and joint configuration. The proprioceptive acuity of fifteen young participants was tested with a Joint Position Matching (JPM) task, performed with the dominant wrist under five different external forces, in order to understand to what extent they affect proprioceptive acuity...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28911939/evaluation-of-airborne-sensory-irritants-for-setting-exposure-limits-or-guidelines-a-systematic-approach
#14
REVIEW
Gunnar Damgaard Nielsen, Peder Wolkoff
Sensory irritation of eyes and upper airways is an important endpoint for setting occupational exposure limits (OELs) and indoor air guidelines. Sensory irritants cause a painful burning, stinging and itching sensation. Controlled chamber studies are the "golden standard" for evaluations. Well conducted workplace studies offer another possibility. For generalization, the number of participants and their age, smoking, gender, and prior exposure, experience and mood has to be considered. Exposure assessments have to be reliable and exposure duration sufficiently long to establish time-response relationships...
September 11, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28910668/specific-contributions-of-basal-ganglia-and-cerebellum-to-the-neural-tracking-of-rhythm
#15
Sylvie Nozaradan, Michael Schwartze, Christian Obermeier, Sonja A Kotz
How specific brain networks track rhythmic sensory input over time remains a challenge in neuroimaging work. Here we show that subcortical areas, namely the basal ganglia and the cerebellum, specifically contribute to the neural tracking of rhythm. We tested patients with focal lesions in either of these areas and healthy controls by means of electroencephalography (EEG) while they listened to rhythmic sequences known to induce selective neural tracking at a frequency corresponding to the most-often perceived pulse-like beat...
August 19, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28910416/lateralized-behaviour-as-indicator-of-affective-state-in-dairy-cows
#16
Sarah Kappel, Michael T Mendl, David C Barrett, Joanna C Murrell, Helen R Whay
In humans, there is evidence that sensory processing of novel or threatening stimuli is right hemisphere dominated, especially in people experiencing negative affective states. There is also evidence for similar lateralization in a number of non-human animal species. Here we investigate whether this is also the case in domestic cattle that may experience long-term negative states due to commonly occurring conditions such as lameness. Health and welfare implications associated with pain in lame cows are a major concern in dairy farming...
2017: PloS One
https://www.readbyqxmd.com/read/28910410/the-function-of-drosophila-larval-class-iv-dendritic-arborization-sensory-neurons-in-the-larval-pupal-transition-is-separable-from-their-function-in-mechanical-nociception-responses
#17
Hannah E Brown, Trishna Desai, Allison J Murphy, Harshida Pancholi, Zachary W Schmidt, Hannah Swahn, Eric C Liebl
The sensory and physiological inputs which govern the larval-pupal transition in Drosophila, and the neuronal circuity that integrates them, are complex. Previous work from our laboratory identified a dosage-sensitive genetic interaction between the genes encoding the Rho-GEF Trio and the zinc-finger transcription factor Sequoia that interfered with the larval-pupal transition. Specifically, we reported heterozygous mutations in sequoia (seq) dominantly exacerbated the trio mutant phenotype, and this seq-enhanced trio mutant genotype blocked the transition of third instar larvae from foragers to wanderers, a requisite behavioral transition prior to pupation...
2017: PloS One
https://www.readbyqxmd.com/read/28902897/testing-the-effects-of-sensory-stimulation-as-a-collateral-based-therapeutic-for-ischemic-stroke-in-c57bl-6j-and-cd1-mouse-strains
#18
Aneeka M Hancock, Ron D Frostig
Utilizing a rat model of ischemic stroke, we have previously shown that sensory stimulation can completely protect rats from impending ischemic damage of cortex if this treatment is delivered within the first two hours post-permanent middle cerebral artery occlusion (pMCAo). The current study sought to extend our findings in rats to mice, which would allow new avenues of research not available in rats. Thus, young adult C57BL/6J and CD1 mice were tested for protection from ischemic stroke with the same protective sensory stimulation-based treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28902571/pain-perception-and-body-awareness-among-individuals-with-borderline-personality-disorder
#19
Karni Ginzburg, Iftah Biran, Itay Goor Aryeh, Noga Tsur, Ruth Defrin
Studies indicate that individuals with borderline personality disorder (BPD) often demonstrate attenuated pain perception, termed hypoalgesia. This study examines the hypothesis that body awareness moderates the association between BPD and pain perception. Participants consisted of 46 women diagnosed with BPD and 47 healthy controls. Sensory testing included the measurement of heat-pain thresholds, ratings of suprathreshold stimuli, measurement of temperature evoking moderate pain, and temporal summation of noxious mechanical stimuli...
September 13, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28901711/learning-to-name-smells-increases-activity-in-heteromodal-semantic-areas
#20
Arnaud Fournel, Caroline Sezille, Carmen C Licon, Charlotte Sinding, Johannes Gerber, Camille Ferdenzi, Thomas Hummel, Moustafa Bensafi
Semantic description of odors is a cognitively demanding task. Learning to name smells is, however, possible with training. This study set out to examine how improvement in olfactory semantic knowledge following training reorganizes the neural representation of smells. First, 19 nonexpert volunteers were trained for 3 days; they were exposed (i) to odorants presented without verbal labels (perceptual learning) and (ii) to other odorants paired with lexicosemantic labels (associative learning). Second, the same participants were tested in a brain imaging study (fMRI) measuring hemodynamic responses to learned odors presented in both the perceptual and associative learning conditions...
September 12, 2017: Human Brain Mapping
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