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Peng L, Peng Y, Luo H, Deng Y. How high-intensity sensory consumption fills up resource scarcity: The boundary condition of self-acceptance. PLoS One 2023; 18:e0285853. [PMID: 37235592 DOI: 10.1371/journal.pone.0285853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
OBJECTIVE Everyone in life will experience resource scarcity, which causes self-discrepancy. It is widely known that individuals participate in reactive consumption to solve the problems of self-discrepancy and resources scarcity. This kind of consumption may be symbolically related to the essence of the resource scarcity or may occur in an unrelated domain. This study proposes a theory for "filling up" one's resource scarcity through high-intensity sensory consumption (HISC). METHODS We used different methods, including one-way analysis of variance (ANOVA), linear regression, mediating effect, and moderating effect, to test the four hypotheses. Four experiments in the study were conducted from May 2022 and August 2022 and involved undergraduates from a university and volunteers recruited online. All participants are adults and verbally agree to participate voluntarily. Study 1a (N = 96 (male 47, female 49), participants from a business school in China) measured resource scarcity in the laboratory experiments and verified the effect of resource scarcity on consumer HISC preference by using linear regression (H1). Study 1b (N = 191 (male 98, female 93), students and teachers from a university in China) measured resource scarcity in the laboratory experiments and manipulated positively and negatively valenced experiences. Using the PROCESS SPSS Mode l, we verified that negatively valenced stimuli also lead to higher levels of arousal, which in turn restores the self-discrepancy caused by resource scarcity (H2). Study 2 (an online experiment, N = 182 (male 91, female 91), participants from China) manipulated the resource scarcity in a color sensory stimulant context, replicating the preliminary effect and examined the mediating effect of the self-worth by using the PROCESS SPSS Mode 4 (H3). Study 3 (an online experiment, N = 251 (male 125, female 126), participants from China) manipulated resource scarcity and self-acceptance in the tactile sensory experience, and tested the moderating effect of self-acceptance by using the PROCESS SPSS Mode 8 (H4). RESULTS Four studies suggest that not only do individuals facing resources scarcity prefer HISC but also that this consumption is mediated and moderated by self-worth and self-acceptance, respectively. This preference for HISC is negated when individuals have high self-acceptance traits. The findings are tested in the auditory domain (as evidenced by a propensity for louder volume), the visual domain (as evidenced by a propensity for more intense colors), and the tactile domain (as evidenced by a propensity for more intense need for touch). The findings also demonstrate that individual preferences for HISC is shown to operate regardless of the valence (positive valence vs. negative valence) of the sensory consumption. CONCLUSIONS Across four experiments, we find that individuals who are subjected to resource scarcity show a preference for high-intensity sensory consumption in the auditory, visual, and tactile domains. We also find that both negatively and positively valenced sensory stimuli have the same impact on resource-scarce individuals' preference for HISC. Furthermore, we demonstrate that the sense of self-worth significantly mediates the effect of resource scarcity on HISC. Finally, we reveal that self-acceptance moderates the effect of resource scarcity on HISC preference.
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Affiliation(s)
- Liangjun Peng
- School of Economics and Management, Chongqing Jiaotong University, Chongqing, China
| | - Yuxin Peng
- College of Life Sciences, Henan Normal University, Xinxiang, Henan, China
| | - Haiyan Luo
- School of Education, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Yeying Deng
- Faculty of Economics and Management, Universiti Kebangsaan Malaysia, Bangi Selangor, Malaysia
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Kemmerer D. What modulates the Mirror Neuron System during action observation?: Multiple factors involving the action, the actor, the observer, the relationship between actor and observer, and the context. Prog Neurobiol 2021; 205:102128. [PMID: 34343630 DOI: 10.1016/j.pneurobio.2021.102128] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/23/2021] [Accepted: 07/29/2021] [Indexed: 01/03/2023]
Abstract
Seeing an agent perform an action typically triggers a motor simulation of that action in the observer's Mirror Neuron System (MNS). Over the past few years, it has become increasingly clear that during action observation the patterns and strengths of responses in the MNS are modulated by multiple factors. The first aim of this paper is therefore to provide the most comprehensive survey to date of these factors. To that end, 22 distinct factors are described, broken down into the following sets: six involving the action; two involving the actor; nine involving the observer; four involving the relationship between actor and observer; and one involving the context. The second aim is to consider the implications of these findings for four prominent theoretical models of the MNS: the Direct Matching Model; the Predictive Coding Model; the Value-Driven Model; and the Associative Model. These assessments suggest that although each model is supported by a wide range of findings, each one is also challenged by other findings and relatively unaffected by still others. Hence, there is now a pressing need for a richer, more inclusive model that is better able to account for all of the modulatory factors that have been identified so far.
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Affiliation(s)
- David Kemmerer
- Department of Psychological Sciences, Department of Speech, Language, and Hearing Sciences, Lyles-Porter Hall, Purdue University, 715 Clinic Drive, United States.
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3
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Fiori F, Plow E, Rusconi ML, Cattaneo Z. Modulation of corticospinal excitability during paintings viewing: A TMS study. Neuropsychologia 2020; 149:107664. [DOI: 10.1016/j.neuropsychologia.2020.107664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/09/2020] [Accepted: 10/26/2020] [Indexed: 12/30/2022]
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4
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fMRI adaptation reveals: The human mirror neuron system discriminates emotional valence. Cortex 2020; 128:270-280. [DOI: 10.1016/j.cortex.2020.03.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/07/2020] [Accepted: 03/19/2020] [Indexed: 11/22/2022]
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5
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Bagewadi VI, Mehta UM, Naik SS, Govindaraj R, Varambally S, Arumugham SS, Naveen Kumar C, Thirthalli J. Diminished modulation of motor cortical reactivity during context-based action observation in schizophrenia. Schizophr Res 2019; 204:222-229. [PMID: 30093350 PMCID: PMC7610505 DOI: 10.1016/j.schres.2018.07.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/25/2018] [Accepted: 07/28/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND Deficient mirror neuron system (MNS)-activity is associated with social cognition deficits in schizophrenia. However, it is not known how socio-emotional contexts modulate the MNS-response. In a Transcranial Magnetic Stimulation (TMS)-experiment, we aimed to compare putative MNS-responses to action observation stimuli with and without a context, in patients with schizophrenia and healthy subjects. METHOD TMS-evoked motor cortical reactivity was measured by single and paired [short interval intracortical inhibition (SICI) and facilitation (ICF)] pulse-paradigms in schizophrenia patients (n = 39) and healthy subjects (n = 28) while they observed three experimental-blocks: a static image, a neutral hand action (NA) and a context-based hand action (CA). The degree of cortical reactivity facilitation with the two action observation blocks, relative to the static block provided indirect measures of premotor MNS-activity. A subset of patients (n = 31) also underwent comprehensive social cognition assessments. RESULTS RMANOVA demonstrated significantly higher cortical reactivity during the CA-block in both groups (all TMS-paradigms); albeit significantly less pronounced in patients (SICI and ICF paradigms). MNS-activity during the CA-block was significantly higher compared to that during the NA-block in both groups (all TMS-paradigms), but significantly less pronounced in patients (SICI and single-pulse paradigms). MNS-activity during the CA-block measured by the ICF paradigm was positively correlated with social cognition performance. CONCLUSION Providing a context to the action modulates MNS-activity. This modulation is diminished in schizophrenia patients, suggestive of a diminished sensorimotor associative learning process. This novel, ecologically valid paradigm to tap into the MNS may serve as a neuro-marker of social cognition performance in schizophrenia.
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Affiliation(s)
| | - Urvakhsh Meherwan Mehta
- Department of Psychiatry, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, Karnataka, India.
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Pool-Goudzwaard A, Groeneveld W, Coppieters MW, Waterink W. Changes in spontaneous overt motor execution immediately after observing others' painful action: two pilot studies. Exp Brain Res 2018; 236:2333-2345. [PMID: 29876631 PMCID: PMC6061486 DOI: 10.1007/s00221-018-5290-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 05/15/2018] [Indexed: 11/05/2022]
Abstract
Research has demonstrated that motor control is directly influenced by observation of others’ action, stimulating the mirror neuron system. In addition, there is evidence that both emotion and empathy after observing a painful stimulus affects motor cortical excitability and reaction times. Aim of the present two pilot studies is a) to test for significant influence of observing other’s painful bending of the trunk on execution of the same activity in a self-directed bending action (study 1) and to compare these results with a bending action according to a strict bending protocol (study 2). In addition to study 1, differences between Low Back Pain (LBP) patients versus healthy subjects are tested. Video footage of a (1) neutral, (2) painful, and (3) happy bending action was presented in random order. Changes in flexion–relaxation phenomenon (FRP) of back muscles were studied directly after watching the videos with surface EMG, in study 1 during a self-directed bending action in LBP patients and healthy subjects, in study 2 according to a strict bending protocol. FRP ratios were calculated by a custom-made analysis scheme tested for sufficient reliability prior to both studies. Evoked emotions were measured with an Emotional Questionnaire after each video. A Mixed Model ANOVA was used to test for the effect video and the difference between LBP and healthy subjects on the FRP-rs. Differences in evoked emotion will be tested with a Wilcoxon Signed Rank Test. In study 1, 24 healthy controls and 16 LBP patients FRP-rs were significantly influenced after observing a painful video in all subjects versus a happy and neutral video (p = 0.00). No differences were present between LBP and healthy controls. All subjects experienced more fear after observation of the painful video (p 0.05). In study 2, 6 healthy subjects followed the strict FRP bending protocol for three times after observing each video. No significant changes occurred in FRPs per video compared to FRPs of six healthy subjects carrying out the spontaneous bending activity. Observing a painful action in another person changes motor performance and increases fear in both people with and without back pain, during self-directed trunk flexion, but not during a protocolled trunk flexion.
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Affiliation(s)
- Annelies Pool-Goudzwaard
- Amsterdam Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081BT, Amsterdam, The Netherlands. .,Somt University of Physiotherapy, Amersfoort, The Netherlands.
| | - Wim Groeneveld
- Department of Neuroscience, Faculty of Health Sciences and Medicine, ErasmusMC University, Rotterdam, The Netherlands
| | - Michel W Coppieters
- Amsterdam Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, Van der Boechorststraat 7, 1081BT, Amsterdam, The Netherlands.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Wim Waterink
- Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
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7
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Lagravinese G, Bisio A, De Ferrari AR, Pelosin E, Ruggeri P, Bove M, Avanzino L. An Emotion-Enriched Context Influences the Effect of Action Observation on Cortical Excitability. Front Hum Neurosci 2017; 11:504. [PMID: 29093674 PMCID: PMC5651558 DOI: 10.3389/fnhum.2017.00504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 10/05/2017] [Indexed: 12/13/2022] Open
Abstract
Observing other people in action activates the “mirror neuron system” that serves for action comprehension and prediction. Recent evidence suggests that this function requires a high level codification triggered not only by components of motor behavior, but also by the environment where the action is embedded. An overlooked component of action perceiving is the one related to the emotional information provided by the context where the observed action takes place. Indeed, whether valence and arousal associated to an emotion might exert an influence on motor system activation during action observation has not been assessed so far. Here, cortico-spinal excitability of the left motor cortex was recorded in three groups of subjects. In the first condition, motor-evoked potential (MEPs) were recorded from a muscle involved in the grasping movement (i.e., abductor pollicis brevis, APB) while participants were watching the same reach-to-grasp movement embedded in contexts with negative emotional valence, but different levels of arousal: sadness (low arousal), and disgust (high arousal) (“Context plus Movement-APB” condition). In the second condition, MEPs were recorded from APB muscle while participants were observing static images representing the contexts in which the movement observed by participants in “Context plus Movement-APB” condition took place (“Context Only-APB” condition). Finally, in the third condition, MEPS were recorded from a muscle not involved in the grasping action, i.e., abductor digiti minimi, ADM, while participants were watching the same videos shown during the “Context plus Movement-APB” condition (“Context plus Movement-ADM” condition). Results showed a greater increase of cortical excitability only during the observation of the hand moving in the context eliciting disgust, and these changes were specific for the muscle involved in the observed action. Our findings show that the emotional context in which a movement occurs modulates motor resonance and that the combination of negative valence/high arousal drives the greater response in the observer’s mirror neuron system in a strictly muscle specific fashion.
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Affiliation(s)
- Giovanna Lagravinese
- Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
| | - Ambra Bisio
- Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
| | - Alessia Raffo De Ferrari
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal Child Health, University of Genoa, Genoa, Italy
| | - Elisa Pelosin
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal Child Health, University of Genoa, Genoa, Italy
| | - Piero Ruggeri
- Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
| | - Marco Bove
- Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
| | - Laura Avanzino
- Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
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8
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Nogueira-Campos AA, Saunier G, Della-Maggiore V, De Oliveira LAS, Rodrigues EC, Vargas CD. Observing Grasping Actions Directed to Emotion-Laden Objects: Effects upon Corticospinal Excitability. Front Hum Neurosci 2016; 10:434. [PMID: 27625602 PMCID: PMC5004483 DOI: 10.3389/fnhum.2016.00434] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 08/12/2016] [Indexed: 12/24/2022] Open
Abstract
The motor system is recruited whenever one executes an action as well as when one observes the same action being executed by others. Although it is well established that emotion modulates the motor system, the effect of observing other individuals acting in an emotional context is particularly elusive. The main aim of this study was to investigate the effect induced by the observation of grasping directed to emotion-laden objects upon corticospinal excitability (CSE). Participants classified video-clips depicting the right-hand of an actor grasping emotion-laden objects. Twenty video-clips differing in terms of valence but balanced in arousal level were selected. Motor evoked potentials (MEPs) were then recorded from the first dorsal interosseous using transcranial magnetic stimulation (TMS) while the participants observed the selected emotional video-clips. During the video-clip presentation, TMS pulses were randomly applied at one of two different time points of grasping: (1) maximum grip aperture, and (2) object contact time. CSE was higher during the observation of grasping directed to unpleasant objects compared to pleasant ones. These results indicate that when someone observes an action of grasping directed to emotion-laden objects, the effect of the object valence promotes a specific modulation over the motor system.
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Affiliation(s)
| | - Ghislain Saunier
- Laboratory of Motor Cognition, Department of Anatomy, Federal University of Pará Belém, Brazil
| | - Valeria Della-Maggiore
- IFIBIO Houssay, Department of Physiology and Biophysics, School of Medicine, University of Buenos Aires Buenos Aires, Argentina
| | | | - Erika C Rodrigues
- Post-Graduate Program in Rehabilitation Sciences, Unisuam Rio de Janeiro, Brazil
| | - Claudia D Vargas
- Laboratory of Neurobiology II, Neurobiology Program, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de JaneiroRio de Janeiro, Brazil; Instituto de Neurologia Deolindo Couto, Federal University of Rio de JaneiroRio de Janeiro, Brazil
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9
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Emotion processing fails to modulate putative mirror neuron response to trained visuomotor associations. Neuropsychologia 2016; 84:7-13. [DOI: 10.1016/j.neuropsychologia.2016.01.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/11/2016] [Accepted: 01/27/2016] [Indexed: 11/23/2022]
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10
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Perceiving expressions of emotion: What evidence could bear on questions about perceptual experience of mental states? Conscious Cogn 2015; 36:438-51. [DOI: 10.1016/j.concog.2015.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 03/04/2015] [Accepted: 03/11/2015] [Indexed: 11/21/2022]
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11
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Enticott PG. Toward a functional account of the human mirror system: comment on "Grasping synergies: a motor-control approach to the mirror neuron mechanism" by A. D'Ausilio et al. Phys Life Rev 2015; 12:104-5. [PMID: 25623960 DOI: 10.1016/j.plrev.2015.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 01/11/2015] [Accepted: 01/12/2015] [Indexed: 10/24/2022]
Affiliation(s)
- Peter G Enticott
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, 221 Burwood Highway, Burwood, Victoria, 3125, Australia.
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12
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Fecteau S, Dickler M, Pelayo R, Kumru H, Bernabeu M, Opisso Salleras E, Tormos JM, Pascual-Leone A. Cortical Excitability During Passive Action Observation in Hospitalized Adults With Subacute Moderate to Severe Traumatic Brain Injury: A Preliminary TMS Study. Neurorehabil Neural Repair 2014; 29:548-56. [PMID: 25505219 DOI: 10.1177/1545968314558603] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Studies indicate that motor functions in patients with traumatic brain injury (TBI) can be improved with action observation. It has been hypothesized that this clinical practice relies on modulation of motor cortical excitability elicited by passive action observation in patients with TBI, a phenomenon shown thus far only in normal controls. The purpose of this work was to test this hypothesis and characterize the modulation of motor cortex excitability during passive action observation in patients with subacute moderate to severe TBI. We measured motor evoked potentials induced by single-pulse transcranial magnetic stimulation to the left primary motor cortex and recorded from the contralateral first dorsal interosseus while 20 participants observed videos of static and moving right index finger. Results were compared with those of 20 age-and gender-matched healthy controls. As expected, greater excitability was elicited during moving than static stimuli in healthy subjects. However, this was not observed in patients with TBI. Modulation of motor excitability during action observation is impaired in patients with TBI depending on motor dysfunction, lesion site, and number of days postinjury. These preliminary results suggest a strategy to identify patients in whom action observation might be a valuable neurorehabilitative strategy.
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Affiliation(s)
- Shirley Fecteau
- Centre interdisciplinaire de recherche en réadaptation et intégration sociale, Centre de recherche universitaire en santé mentale de Québec, Medical School, Laval University, Quebec, Canada Berenson-Allen Center for Noninvasive Brain Sitmulation, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Maya Dickler
- Centre interdisciplinaire de recherche en réadaptation et intégration sociale, Centre de recherche universitaire en santé mentale de Québec, Medical School, Laval University, Quebec, Canada
| | - Raul Pelayo
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Barcelona, Spain Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Hatice Kumru
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Barcelona, Spain Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Monste Bernabeu
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Barcelona, Spain Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Eloy Opisso Salleras
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Barcelona, Spain Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - José Maria Tormos
- Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Badalona, Barcelona, Spain Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain
| | - Alvaro Pascual-Leone
- Berenson-Allen Center for Noninvasive Brain Sitmulation, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
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13
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Mirror neuron dysfunction in schizophrenia and its functional implications: a systematic review. Schizophr Res 2014; 160:9-19. [PMID: 25468183 PMCID: PMC6284797 DOI: 10.1016/j.schres.2014.10.040] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/19/2014] [Accepted: 10/28/2014] [Indexed: 12/25/2022]
Abstract
Dysfunctional mirror neuron activity (MNA) has been posited to underlie diverse symptoms of schizophrenia (e.g., ego-boundary disturbances, negative symptoms, social cognition impairments and catatonic symptoms). In this paper, we systematically review studies that have empirically compared putative MNA in schizophrenia patients and healthy subjects using different neurophysiological probes. Majority of the studies (n=9) reported reduced MNA in patients. Two each reported either increased MNA or mixed (both increased and decreased) results, while only one study reported normal findings. Reduced MNA was associated with greater negative symptoms and theory of mind deficits. The neurophysiological technique, task paradigms used, specific brain regions studied and laterality did not influence these findings. Further, we propose an overarching model to understand the heterogeneous symptom dimensions of schizophrenia, in which an inherent mirror system deficit underlying persistent negative symptoms, social cognition impairments and self-monitoring deficits triggers a pathological metaplastic reorganization of this system resulting in aberrant excessive MNA and the phasic catatonic symptoms, affective instability and hallucinations. Despite being preliminary in nature, evidence of abnormal MNA in schizophrenia reported necessitates more detailed investigation. Future research directions of using this model within the Research Domain Criteria framework of the National Institute of Mental Health are discussed.
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Naish KR, Houston-Price C, Bremner AJ, Holmes NP. Effects of action observation on corticospinal excitability: Muscle specificity, direction, and timing of the mirror response. Neuropsychologia 2014; 64:331-48. [PMID: 25281883 DOI: 10.1016/j.neuropsychologia.2014.09.034] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 09/05/2014] [Accepted: 09/19/2014] [Indexed: 02/07/2023]
Affiliation(s)
- Katherine R Naish
- School of Psychology and Clinical Language Sciences, University of Reading, Earley Gate, Whiteknights, Reading RG6 6AL, UK; Centre for Integrative Neuroscience and Neurodynamics, University of Reading, Earley Gate, Whiteknights, Reading RG6 6AL, UK; Department of Psychology, Neuroscience & Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L8.
| | - Carmel Houston-Price
- University of Reading Malaysia, Menara Kotaraya, Level 7, Jalan Trus, Johor Bahru, Malaysia 80000.
| | - Andrew J Bremner
- Department of Psychology, Goldsmiths, University of London, New Cross, London SE14 6NW, UK.
| | - Nicholas P Holmes
- School of Psychology and Clinical Language Sciences, University of Reading, Earley Gate, Whiteknights, Reading RG6 6AL, UK; Centre for Integrative Neuroscience and Neurodynamics, University of Reading, Earley Gate, Whiteknights, Reading RG6 6AL, UK.
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15
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An examination of the influence of visuomotor associations on interpersonal motor resonance. Neuropsychologia 2014; 56:439-46. [DOI: 10.1016/j.neuropsychologia.2014.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 02/12/2014] [Accepted: 02/21/2014] [Indexed: 12/25/2022]
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