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https://www.readbyqxmd.com/read/28230398/anticipation-in-manual-tracking-with-multiple-delays
#1
Nigel Stepp, Michael T Turvey
Two experiments are reported showing that behavior exhibited in manual tracking is consistent with behavior predicted by a dynamical systems phenomenon known as anticipating synchronization (Voss, 2000). They extend a prior investigation of the effect of delay on anticipatory manual tracking (Stepp, 2009) by also manipulating coupling strength. The coupling scheme in Experiment 1 and that in Experiment 2 go beyond the single delayed feedback coupling used in previous research and articulations of anticipating synchronization...
February 23, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28230070/an-fmri-compatible-force-measurement-system-for-the-evaluation-of-the-neural-correlates-of-step-initiation
#2
Andrea Cristina de Lima-Pardini, Raymundo Machado de Azevedo Neto, Daniel Boari Coelho, Catarina Costa Boffino, Sukhwinder S Shergill, Carolina de Oliveira Souza, Rachael Brant, Egberto Reis Barbosa, Ellison Fernando Cardoso, Luis Augusto Teixeira, Rajal G Cohen, Fay Bahling Horak, Edson Amaro
Knowledge of brain correlates of postural control is limited by the technical difficulties in performing controlled experiments with currently available neuroimaging methods. Here we present a system that allows the measurement of anticipatory postural adjustment of human legs to be synchronized with the acquisition of functional magnetic resonance imaging data. The device is composed of Magnetic Resonance Imaging (MRI) compatible force sensors able to measure the level of force applied by both feet. We tested the device in a group of healthy young subjects and a group of elderly subjects with Parkinson's disease using an event-related functional MRI (fMRI) experiment design...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28228081/the-neurobiology-and-psychiatric-perspective-of-vaginismus-linking-the-pharmacological-and-psycho-social-interventions
#3
Zuri Shahidii Kadir, Hatta Sidi, Jaya Kumar, Srijit Das, Marhani Midin, Najwa Baharuddin
Vaginismus is an involuntary muscle contraction of the outer third of vaginal barrel causing sexual penetration almost impossible. It is generally classified under sexual pain disorder (SPD). In Diagnostic and Statistical Manual, 5th edition, it is classified under the new rubric of Genito-Pelvic Pain/Sexual Penetration Disorder. This fear-avoidance condition poses an ongoing significant challenge to the medical and health professionals due to the very demanding needs in health care despite its unpredictable prognosis...
February 22, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28226425/the-brain-can-mix-different-control-strategies-in-a-task-oriented-and-multi-referential-manner-a-simulation-study
#4
Pietro Morasso, Taishin Nomura, Yasuyuki Suzuki, Jacopo Zenzeri, Pietro Morasso, Taishin Nomura, Yasuyuki Suzuki, Jacopo Zenzeri, Jacopo Zenzeri, Taishin Nomura, Yasuyuki Suzuki, Pietro Morasso
In everyday life the brain must adapt to variable situations that may require a mixture of approaches including anticipatory synergy formation, through an internal body schema, and different control strategies. Unstable tasks are particularly challenging because deteriorate the predictive power of internal models and further enhance the instability potential of delayed sensory feedback. We explore this issue by means of three simulation studies: A) The hybrid control of a double inverted pendulum model, B) The bimanual stabilization of a saddle-like instability, C) Whole-body focal-postural dynamics...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223956/the-predictive-value-of-the-neo-ffi-items-parsing-the-nature-of-social-anhedonia-using-the-revised-social-anhedonia-scale-and-the-acips
#5
Diane C Gooding, Emily R Padrutt, Madeline J Pflum
The goal was to examine the nature of social anhedonia using two validated measures and study their relationship to scores on the NEO-Five Factor Inventory (NEO-FFI). Nearly 1,900 college-aged participants completed the Chapman Revised Social Anhedonia Scale (RSAS), Anticipatory and Consummatory Interpersonal Pleasure Scale (ACIPS), and the NEO-FFI. Although both the RSAS and ACIPS were associated with the NEO-FFI domains of Extraversion, Agreeableness, and Neuroticism, linear regression analyses revealed that the RSAS and ACIPS were differentially predicted by NEO-FFI item clusters...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28222562/impaired-scaling-of-preparatory-postural-responses-to-repeated-balance-perturbations-in-parkinsonian-patients-with-comorbid-white-matter-disease
#6
David Cioncoloni, Lodovica Martelli, Deborah Rosignoli, Riccardo Mazzocchio
BACKGROUND: Postural instability may result from altered sequencing of automatic motor programs for anticipatory postural corrections and/or impaired motor learning in Parkinson Disease (PD) patients. Comorbid white matter disease is a major determinant of axial motor impairment, leading to poorer stability than nigrostriatal dopaminergic denervation per se. OBJECTIVE: To assess differences in anticipatory control of postural stability function between subjects affected by PD with comorbid leukoaraiosis (LPD), idiopathic Parkinson disease (IPD) and elderly health subjects (EHS) as control group...
February 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28221086/cassandra-s-regret-the-psychology-of-not-wanting-to-know
#7
Gerd Gigerenzer, Rocio Garcia-Retamero
Ignorance is generally pictured as an unwanted state of mind, and the act of willful ignorance may raise eyebrows. Yet people do not always want to know, demonstrating a lack of curiosity at odds with theories postulating a general need for certainty, ambiguity aversion, or the Bayesian principle of total evidence. We propose a regret theory of deliberate ignorance that covers both negative feelings that may arise from foreknowledge of negative events, such as death and divorce, and positive feelings of surprise and suspense that may arise from foreknowledge of positive events, such as knowing the sex of an unborn child...
March 2017: Psychological Review
https://www.readbyqxmd.com/read/28220064/effect-of-experimentally-induced-trunk-muscular-tensions-on-the-sit-to-stand-task-performance-and-associated-postural-adjustments
#8
Alain Hamaoui, Caroline Alamini-Rodrigues
It has been shown that increased muscular activity along the trunk is likely to impair body balance, but there is little knowledge about its consequences on more dynamic tasks. The purpose of this study was to determine the effect of unilateral and bilateral increases of muscular tension along the trunk on the sit-to-stand task (STS) performance and associated anticipatory postural adjustments (APAs). Twelve healthy females (23 ± 3 years, 163 ± 0.06 cm, 56 ± 9 kg), free of any neurological or musculoskeletal disorders, performed six trials of the STS at maximum speed, in seven experimental conditions varying the muscular tension along each side of the trunk, using a specific bimanual compressive load paradigm...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28219000/acute-ghrelin-changes-food-preference-from-high-fat-diet-to-chow-during-binge-like-eating-in-rodents
#9
Tina Bake, Kim T Hellgren, Suzanne L Dickson
Ghrelin, an orexigenic hormone released from the empty stomach, provides a gut-brain signal that promotes many appetitive behaviors, including anticipatory and goal-directed behaviors for palatable treats high in sugar and/or fat. Here we sought to determine whether ghrelin is able to influence and/or may even have a role in binge-like behavior in rodents. To this end, we used a palatable scheduled feeding (PSF) paradigm in which ad libitum chow-fed rodents are trained to "binge" on high fat diet (HFD) offered each day for a limited period of 2 hr...
February 20, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28216241/temporal-and-identity-prediction-in-visual-auditory-events-electrophysiological-evidence-from-stimulus-omissions
#10
Thijs van Laarhoven, Jeroen J Stekelenburg, Jean Vroomen
A rare omission of a sound that is predictable by anticipatory visual information induces an early negative omission response (oN1) in the EEG during the period of silence where the sound was expected. It was previously suggested that the oN1 was primarily driven by the identity of the anticipated sound. Here, we examined the role of temporal prediction in conjunction with identity prediction of the anticipated sound in the evocation of the auditory oN1. With incongruent audiovisual stimuli (a video of a handclap that is consistently combined with the sound of a car horn) we demonstrate in Experiment 1 that a natural match in identity between the visual and auditory stimulus is not required for inducing the oN1, and that the perceptual system can adapt predictions to unnatural stimulus events...
February 16, 2017: Brain Research
https://www.readbyqxmd.com/read/28213690/anticipatory-postural-adjustments-associated-with-reaching-movements-are-programmed-according-to-the-availability-of-visual-information
#11
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
https://www.readbyqxmd.com/read/28192580/a-brief-resolved-unexplained-event-and-congenital-neurosyphilis
#12
Justin Triemstra, Kelsey Reno, Rebecca Chohlas-Wood, Colleen Nash
Brief resolved unexplained event (BRUE) is a common pediatric problem that presents to ambulatory and emergency settings. Infants presenting with a BRUE can be separated into low- and high-risk groups per recent guidelines. Most low-risk infants who present with a BRUE can be discharged home with anticipatory guidance and education provided to the caregivers; however, high-risk infants should undergo further testing and observation to determine the cause of their event. Congenital neurosyphilis can be a rare cause of a BRUE...
February 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28187128/neural-mechanisms-of-rhythm-based-temporal-prediction-delta-phase-locking-reflects-temporal-predictability-but-not-rhythmic-entrainment
#13
Assaf Breska, Leon Y Deouell
Predicting the timing of upcoming events enables efficient resource allocation and action preparation. Rhythmic streams, such as music, speech, and biological motion, constitute a pervasive source for temporal predictions. Widely accepted entrainment theories postulate that rhythm-based predictions are mediated by synchronizing low-frequency neural oscillations to the rhythm, as indicated by increased phase concentration (PC) of low-frequency neural activity for rhythmic compared to random streams. However, we show here that PC enhancement in scalp recordings is not specific to rhythms but is observed to the same extent in less periodic streams if they enable memory-based prediction...
February 2017: PLoS Biology
https://www.readbyqxmd.com/read/28184211/disrupted-saccade-control-in-chronic-cerebral-injury-upper-motor-neuron-like-disinhibition-in-the-ocular-motor-system
#14
John-Ross Rizzo, Todd E Hudson, Andrew Abdou, Yvonne W Lui, Janet C Rucker, Preeti Raghavan, Michael S Landy
Saccades rapidly direct the line of sight to targets of interest to make use of the high acuity foveal region of the retina. These fast eye movements are instrumental for scanning visual scenes, foveating targets, and, ultimately, serve to guide manual motor control, including eye-hand coordination. Cerebral injury has long been known to impair ocular motor control. Recently, it has been suggested that alterations in control may be useful as a marker for recovery. We measured eye movement control in a saccade task in subjects with chronic middle cerebral artery stroke with both cortical and substantial basal ganglia involvement and in healthy controls...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28177062/critical-neuropsychobiological-analysis-of-panic-attack-and-anticipatory-anxiety-like-behaviors-in-rodents-confronted-with-snakes-in-polygonal-arenas-and-complex-labyrinths-a-comparison-to-the-elevated-plus-and-t-maze-behavioral-tests
#15
Norberto C Coimbra, Tatiana Paschoalin-Maurin, Gabriel S Bassi, Alexandre Kanashiro, Audrey F Biagioni, Tatiana T Felippotti, Daoud H Elias-Filho, Joyce Mendes-Gomes, Jade P Cysne-Coimbra, Rafael C Almada, Bruno Lobão-Soares
Objective: To compare prey and snake paradigms performed in complex environments to the elevated plus-maze (EPM) and T-maze (ETM) tests for the study of panic attack- and anticipatory anxiety-like behaviors in rodents. Methods: PubMed was reviewed in search of articles focusing on the plus maze test, EPM, and ETM, as well as on defensive behaviors displayed by threatened rodents. In addition, the authors' research with polygonal arenas and complex labyrinth (designed by the first author for confrontation between snakes and small rodents) was examined...
February 6, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28174540/the-influence-of-mid-event-deception-on-psychophysiological-status-and-pacing-can-persist-across-consecutive-disciplines-and-enhance-self-paced-multi-modal-endurance-performance
#16
Daniel Taylor, Mark F Smith
Purpose: To examine the effects of deceptively aggressive bike pacing on performance, pacing, and associated physiological and perceptual responses during simulated sprint-distance triathlon. Methods: Ten non-elite, competitive male triathletes completed three simulated sprint-distance triathlons (0.75 km swim, 500 kJ bike, 5 km run), the first of which established personal best "baseline" performance (BL). During the remaining two trials athletes maintained a cycling power output 5% greater than BL, before completing the run as quickly as possible...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28170412/expertise-differences-in-anticipatory-judgements-during-a-temporally-and-spatially-occluded-task
#17
Joe Causer, Nicholas J Smeeton, A Mark Williams
There is contradictory evidence surrounding the role of critical cues in the successful anticipation of penalty kicks in soccer. In the current study, skilled and less-skilled soccer goalkeepers were required to anticipate when viewing penalty kicks that were both spatially (full body; hip region) and temporally (-160 ms, -80 ms before, foot-ball contact) occluded. The skilled group outperformed the less-skilled group in all conditions. Participants performed better in the full body condition when compared to hip region condition...
2017: PloS One
https://www.readbyqxmd.com/read/28167093/effect-of-cue-timing-and-modality-on-gait-initiation-in-parkinson-s-disease-with-freezing-of-gait
#18
Chiahao Lu, Sommer L Amundsen Huffmaster, Paul J Tuite, Jacqueline M Vachon, Colum D MacKinnon
OBJECTIVE: To examine the effects of cue timing, across three sensory modalities, on anticipatory postural adjustments (APAs) during gait initiation in people with Parkinson's disease (PD). DESIGN: Observational study. SETTING: Biomechanics research laboratory. PARTICIPANTS: Twenty-five individuals with idiopathic PD (11 with freezing of gait, FOG) were studied in the off-levodopa state (12-hour overnight withdrawal)...
February 3, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28164375/pedunculopontine-network-dysfunction-in-parkinson-s-disease-with-postural-control-and-sleep-disorders
#19
Cecile Gallea, Claire Ewenczyk, Bertrand Degos, Marie-Laure Welter, David Grabli, Smaranda Leu-Semenescu, Romain Valabregue, Pierre Berroir, Lydia Yahia-Cherif, Eric Bertasi, Sara Fernandez-Vidal, Eric Bardinet, Emmanuel Roze, Habib Benali, Cyril Poupon, Chantal François, Isabelle Arnulf, Stéphane Lehéricy, Marie Vidailhet
BACKGROUND: The objective of this study was to investigate pedunculopontine nucleus network dysfunctions that mediate impaired postural control and sleep disorder in Parkinson's disease. METHODS: We examined (1) Parkinson's disease patients with impaired postural control and rapid eye movement sleep behavior disorder (further abbreviated as sleep disorder), (2) Parkinson's disease patients with sleep disorder only, (3) Parkinson's disease patients with neither impaired postural control nor sleep disorder, and (4) healthy volunteers...
February 6, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28160750/repetitive-peripheral-magnetic-neurostimulation-of-multifidus-muscles-combined-with-motor-training-influences-spine-motor-control-and-chronic-low-back-pain
#20
Hugo Massé-Alarie, Louis-David Beaulieu, Richard Preuss, Cyril Schneider
OBJECTIVE: The study tested whether combining repetitive peripheral magnetic stimulation (RPMS) and motor training of the superficial multifidus muscle (MF) better improved the corticomotor control of spine than training alone in chronic low back pain (CLBP). METHODS: Twenty-one participants with CLBP were randomly allocated to [RPMS+training] and [Sham+training] groups for three sessions (S1-S3) over a week where MF was stimulated before training (volitional contraction)...
March 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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