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Mirror neurons

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https://www.readbyqxmd.com/read/28315038/the-mirror-neuron-system-in-relapsing-remitting-multiple-sclerosis-patients-with-low-disability
#1
Julio Plata-Bello, Yaiza Pérez-Martín, Abril Castañón-Pérez, Cristián Modroño, Helga Fariña, Estefanía Hernández-Martín, Montserrat González-Platas, Francisco Marcano, José Luis González-Mora
To study the visuospatial/visuoperceptive function using a mirror neuron system (MNS) based approach in multiple sclerosis (MS) patients and a healthy control group. Two task-based fMRIs (an execution task and an observation task) and one resting-fMRI were performed in a group of MS patients (n = 24) and a group of healthy controls (n = 15). The execution and observation tasks consisted of the performance or observation of the index-thumb opposition task. Statistical parametric mapping approaches were used to identify differences in the brain activity and functional connectivity (FC) of the MNS between MS patients and healthy controls...
March 17, 2017: Brain Topography
https://www.readbyqxmd.com/read/28300949/increased-affective-empathy-in-bipolar-patients-during-a-manic-episode
#2
Anna Bodnar, Janusz K Rybakowski
Objective: To assess both cognitive and affective empathy in patients with bipolar disorder (BD) during an acute manic or depressive episode. Methods: The study included 25 patients with BD (aged 35±14 years) during an acute manic episode, 25 bipolar patients (aged 41±14 years) during a depressive episode, and 25 healthy control subjects (aged 36±11 years). Cognitive and affective empathy were assessed using the Multifaceted Empathy Test. Results: In both manic and depressive patients, a significant deficit in cognitive empathy was demonstrated...
March 13, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28293186/sleep-paralysis-the-ghostly-bedroom-intruder-and-out-of-body-experiences-the-role-of-mirror-neurons
#3
Baland Jalal, Vilayanur S Ramachandran
No abstract text is available yet for this article.
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28288397/neural-mechanisms-of-vocal-imitation-the-role-of-sleep-replay-in-shaping-mirror-neurons
#4
REVIEW
Nicolas Giret, Jean-Marc Edeline, Catherine Del Negro
Learning by imitation involves not only perceiving another individual's action to copy it, but also the formation of a memory trace in order to gradually establish a correspondence between the sensory and motor codes, which represent this action through sensorimotor experience. Memory and sensorimotor processes are closely intertwined. Mirror neurons, which fire both when the same action is performed or perceived, have received considerable attention in the context of imitation. An influential view of memory processes considers that the consolidation of newly acquired information or skills involves an active offline reprocessing of memories during sleep within the neuronal networks that were initially used for encoding...
March 10, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28286487/empathy-related-responses-to-depicted-people-in-art-works
#5
Ladislav Kesner, Jiří Horáček
Existing theories of empathic response to visual art works postulate the primacy of automatic embodied reaction to images based on mirror neuron mechanisms. Arguing for a more inclusive concept of empathy-related response and integrating four distinct bodies of literature, we discuss contextual, and personal factors which modulate empathic response to depicted people. We then present an integrative model of empathy-related responses to depicted people in art works. The model assumes that a response to empathy-eliciting figural artworks engages the dynamic interaction of two mutually interlinked sets of processes: socio-affective/cognitive processing, related to the person perception, and esthetic processing, primarily concerned with esthetic appreciation and judgment and attention to non-social aspects of the image...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28285946/development-of-rostral-inferior-parietal-lobule-area-functional-connectivity-from-late-childhood-to-early-adulthood
#6
Mengxing Wang, Jilei Zhang, Guangheng Dong, Hui Zhang, Haifeng Lu, Xiaoxia Du
Although the mirror neuron system (MNS) has been extensively studied in monkeys and adult humans, very little is known about its development. Previous studies suggest that the MNS is present by infancy and that the brain and MNS-related cognitive abilities (such as language, empathy, and imitation learning) continue to develop after childhood. In humans, the PFt area of the inferior parietal lobule (IPL) seems to particularly correlate with the functional properties of the PF area in primates, which contains mirror neurons...
March 7, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28269584/virtual-reality-for-pediatric-neuro-rehabilitation-adaptive-visual-feedback-of-movement-to-engage-the-mirror-neuron-system
#7
Roopeswar Kommalapati, Konstantinos P Michmizos
Sensorimotor therapy gives optimal results when patients are cognitively engaged into highly repetitive tasks, a goal that most children find hard to pursue. This paper presents the key developments of our ongoing effort to design an interactive rehabilitation environment that motivates physically impaired children throughout their therapy. The continuous motivation is achieved by the system adapting fundamental therapeutic components to the performance of each child. The relevant movement is mirrored to an animated character projected in front of the child...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267988/left-right-asymmetry-of-maturation-rates-in-human-embryonic-neural-development
#8
Carolien G F de Kovel, Steven Lisgo, Guy Karlebach, Jia Ju, Gang Cheng, Simon E Fisher, Clyde Francks
BACKGROUND: Left-right asymmetry is a fundamental organizing feature of the human brain, and neuropsychiatric disorders such as schizophrenia sometimes involve alterations of brain asymmetry. As early as 8 weeks postconception, the majority of human fetuses move their right arms more than their left arms, but because nerve fiber tracts are still descending from the forebrain at this stage, spinal-muscular asymmetries are likely to play an important developmental role. METHODS: We used RNA sequencing to measure gene expression levels in the left and right spinal cords, and the left and right hindbrains, of 18 postmortem human embryos aged 4 to 8 weeks postconception...
February 1, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28262939/neural-reactivity-to-emotional-faces-may-mediate-the-relationship-between-childhood-empathy-and-adolescent-prosocial-behavior
#9
John C Flournoy, Jennifer H Pfeifer, William E Moore, Allison M Tackman, Carrie L Masten, John C Mazziotta, Marco Iacoboni, Mirella Dapretto
Reactivity to others' emotions not only can result in empathic concern (EC), an important motivator of prosocial behavior, but can also result in personal distress (PD), which may hinder prosocial behavior. Examining neural substrates of emotional reactivity may elucidate how EC and PD differentially influence prosocial behavior. Participants (N = 57) provided measures of EC, PD, prosocial behavior, and neural responses to emotional expressions at ages 10 and 13. Initial EC predicted subsequent prosocial behavior...
November 2016: Child Development
https://www.readbyqxmd.com/read/28250456/biallelic-mutations-in-human-dcc-cause-developmental-split-brain-syndrome
#10
Saumya S Jamuar, Klaus Schmitz-Abe, Alissa M D'Gama, Marie Drottar, Wai-Man Chan, Maya Peeva, Sarah Servattalab, Anh-Thu N Lam, Mauricio R Delgado, Nancy J Clegg, Zayed Al Zayed, Mohammad Asif Dogar, Ibrahim A Alorainy, Abdullah Abu Jamea, Khaled Abu-Amero, May Griebel, Wendy Ward, Ed S Lein, Kyriacos Markianos, A James Barkovich, Caroline D Robson, P Ellen Grant, Thomas M Bosley, Elizabeth C Engle, Christopher A Walsh, Timothy W Yu
Motor, sensory, and integrative activities of the brain are coordinated by a series of midline-bridging neuronal commissures whose development is tightly regulated. Here we report a new human syndrome in which these commissures are widely disrupted, thus causing clinical manifestations of horizontal gaze palsy, scoliosis, and intellectual disability. Affected individuals were found to possess biallelic loss-of-function mutations in the gene encoding the axon-guidance receptor 'deleted in colorectal carcinoma' (DCC), which has been implicated in congenital mirror movements when it is mutated in the heterozygous state but whose biallelic loss-of-function human phenotype has not been reported...
February 27, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28247157/impaired-white-matter-connectivity-between-regions-containing-mirror-neurons-and-relationship-to-negative-symptoms-and-social-cognition-in-patients-with-first-episode-schizophrenia
#11
Yukiko Saito, Marek Kubicki, Inga Koerte, Tatsui Otsuka, Yogesh Rathi, Ofer Pasternak, Sylvain Bouix, Ryan Eckbo, Zora Kikinis, Christian Clemm von Hohenberg, Tomohide Roppongi, Elisabetta Del Re, Takeshi Asami, Sang-Hyuk Lee, Sarina Karmacharya, Raquelle I Mesholam-Gately, Larry J Seidman, James Levitt, Robert W McCarley, Martha E Shenton, Margaret A Niznikiewicz
In schizophrenia, abnormalities in structural connectivity between brain regions known to contain mirror neurons and their relationship to negative symptoms related to a domain of social cognition are not well understood. Diffusion tensor imaging (DTI) scans were acquired in 16 patients with first episode schizophrenia and 16 matched healthy controls. FA and Trace of the tracts interconnecting regions known to be rich in mirror neurons, i.e., anterior cingulate cortex (ACC), inferior parietal lobe (IPL) and premotor cortex (PMC) were evaluated...
February 28, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28245068/positive-effects-of-neurofeedback-on-autism-symptoms-correlate-with-brain-activation-during-imitation-and-observation
#12
Michael Datko, Jaime Pineda, Ralph-Axel Müller
Autism has been characterized by atypical task-related brain activation and functional connections, coinciding with deficits in sociocommunicative abilities. However, evidence of the brain's experience-dependent plasticity suggests that abnormal activity patterns may be reversed with treatment. In particular, neurofeedback training, an intervention based on operant conditioning resulting in self-regulation of brain electrical oscillations, has shown increasing promise in addressing abnormalities in brain function and behavior...
February 28, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28240389/increased-intrinsic-brain-connectivity-between-pons-and-somatosensory-cortex-during-attacks-of-migraine-with-aura
#13
Anders Hougaard, Faisal Mohammad Amin, Henrik B W Larsson, Egill Rostrup, Messoud Ashina
The neurological disturbances of migraine aura are caused by transient cortical dysfunction due to waves of spreading depolarization that disrupt neuronal signaling. The effects of these cortical events on intrinsic brain connectivity during attacks of migraine aura have not previously been investigated. Studies of spontaneous migraine attacks are notoriously challenging due to their unpredictable nature and patient discomfort. We investigated 16 migraine patients with visual aura during attacks and in the attack-free state using resting state fMRI...
February 27, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28227840/virtual-reality-for-pediatric-neuro-rehabilitation-adaptive-visual-feedback-of-movement-to-engage-the-mirror-neuron-system
#14
Roopeswar Kommalapati, Konstantinos P Michmizos, Roopeswar Kommalapati, Konstantinos P Michmizos, Roopeswar Kommalapati, Konstantinos P Michmizos
Sensorimotor therapy gives optimal results when patients are cognitively engaged into highly repetitive tasks, a goal that most children find hard to pursue. This paper presents the key developments of our ongoing effort to design an interactive rehabilitation environment that motivates physically impaired children throughout their therapy. The continuous motivation is achieved by the system adapting fundamental therapeutic components to the performance of each child. The relevant movement is mirrored to an animated character projected in front of the child...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225838/-mental-simulation-in-frontotemporal-dementia
#15
Daniel G Politis, Wanda Y Rubinstein, María E Tabernero
There is a common network for perception and execution of actions necessary for the acquisition of Theory of Mind, and the mirror neuron system could be the neural substrate. OBJECTIVE: To study the presence of apraxia and their relationship to Theory of Mind in patients with behavioral variant of Frontotemporal Dementia. METHODS: 24 patients were assessed, and the cognitive praxis assessment battery and theory of mind were administered. RESULTS: All the tasks of the cognitive praxis assessment battery showed a significant correlation with the first order False Believe task, while Faces Test showed correlations with all the battery tasks except Auditory verbal income...
May 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28222356/extinction-of-avoidance-behavior-by-safety-learning-depends-on-endocannabinoid-signaling-in-the-hippocampus
#16
Vincenzo Micale, Jens Stepan, Angela Jurik, Fabricio A Pamplona, Rudolph Marsch, Filippo Drago, Matthias Eder, Carsten T Wotjak
The development of exaggerated avoidance behavior is largely responsible for the decreased quality of life in patients suffering from anxiety disorders. Studies using animal models have contributed to the understanding of the neural mechanisms underlying the acquisition of avoidance responses. However, much less is known about its extinction. Here we provide evidence in mice that learning about the safety of an environment (i.e., safety learning) rather than repeated execution of the avoided response in absence of negative consequences (i...
February 3, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28165861/-i-feel-your-disgust-and-relief-can-the-action-understanding-system-mirror-neuron-system-be-recruited-to-induce-disgust-and-relief-from-contamination-vicariously-in-individuals-with-obsessive-compulsive-disorder-symptoms
#17
Baland Jalal, Vilayanur S Ramachandran
Research has shown that brain regions mediating disgust (e.g., the insula) become activated when viewing others' disgust, a response mediated, perhaps by the mirror neuron system or the Theory of Mind module. In a novel behavioral experiment, we explore vicarious disgust and relief, in individuals with obsessive-compulsive disorder (OCD) symptoms. Participants (N = 10) provided disgust ratings to self-contamination or watching the contamination of an experimenter; and to the experimenter washing his own hands after the subjects had been contaminated...
February 6, 2017: Neurocase
https://www.readbyqxmd.com/read/28164461/flexible-polygon-mirror-based-laser-scanning-microscope-platform-for-multiphoton-in-vivo-imaging
#18
Y X Li, V Gautam, A Brüstle, I A Cockburn, V R Daria, C Gillespie, K Gaus, C Alt, W M Lee
Commercial microscopy systems make use of tandem scanning i.e. either slow or fast scanning. We constructed, for the first time, an advanced control system capable of delivering a dynamic line scanning speed ranging from 2.7 kHz to 27 kHz and achieve variable frame rates from 5 Hz to 50 Hz (512 × 512). The dynamic scanning ability is digitally controlled by a new customized open-source software named PScan1.0. This permits manipulation of scanning rates either to gain higher fluorescence signal at slow frame rate without increasing laser power or increase frame rates to capture high speed events...
February 6, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28153686/more-than-an-imitation-game-top-down-modulation-of-the-human-mirror-system
#19
REVIEW
Megan E J Campbell, Ross Cunnington
All interpersonal interactions are underpinned by action: perceiving and understanding the actions of others, and responding by planning and performing self-made actions. Perception of action, both self-made and observed, informs ongoing motor responses by iterative feedback within a perception-action loop. This fundamental phenomenon occurs within single-cells of the macaque brain which demonstrate sensory and motor response properties. These 'mirror' neurons have led to a swathe of research leading to the broadly accepted idea of a human mirror system...
January 30, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28137724/mirroring-in-the-human-brain-deciphering-the-spatial-temporal-patterns-of-the-human-mirror-neuron-system
#20
Anat Perry, Jennifer Stiso, Edward F Chang, Jack J Lin, Josef Parvizi, Robert T Knight
Embodied theories of cognition emphasize the central role of sensorimotor transformations in the representation of others' actions. Support for these theories is derived from the discovery of the mirror neuron system (MNS) in primates, from noninvasive techniques in humans, and from a limited number of intracranial studies. To understand the neural dynamics of the human MNS, more studies with precise spatial and temporal resolutions are essential. We used electrocorticography to define activation patterns in sensorimotor, parietal and/or frontal neuronal populations, during a viewing and grasping task...
January 30, 2017: Cerebral Cortex
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