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Harada T, Kamachi MG, Yotsumoto Y. An identity-irrelevant discrimination task reveals familiarity-advantage in face perception and no self-advantage in voice perception. Acta Psychol (Amst) 2024; 247:104317. [PMID: 38743984 DOI: 10.1016/j.actpsy.2024.104317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024] Open
Abstract
Whether or not self-face and self-voice are processed more accurately than others' remains inconclusive. Most previous studies asked participants to judge the presented stimulus as their own or as others', and compared response accuracy to discuss self-advantage. However, it is possible that participants responded correctly in the "other" trials not by identifying "other" but rather by rejecting "self." The present study employed an identity-irrelevant discrimination task, in which participants detected the odd stimulus among the three sequentially presented stimuli. We measured the discrimination thresholds for the self, friend, and stranger conditions. In Experiment 1 (face), the discrimination thresholds for self and friends' faces were lower than those for strangers' faces. This suggests that self-face may not be perceived as special or unique, and facial representation may become more accurate due to increased familiarity through repetitive exposure. Whereas, in Experiment 2 (voice), the discrimination thresholds did not differ between the three conditions, suggesting that the sensitivity to changes is the same regardless of identity. Overall, we found no evidence for self-advantage in identification accuracy, as we observed a familiarity-advantage rather than self-advantage in face processing and a null difference in voice processing.
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Affiliation(s)
- Tamaka Harada
- Department of Life Sciences, The University of Tokyo, Japan.
| | | | - Yuko Yotsumoto
- Department of Life Sciences, The University of Tokyo, Japan.
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Watanabe H, Washino S, Ogoh S, Miyamoto N, Kanehisa H, Kato H, Yoshitake Y. Observing an expert's action swapped with an observer's face increases corticospinal excitability during combined action observation and motor imagery. Eur J Neurosci 2024; 59:1016-1028. [PMID: 38275099 DOI: 10.1111/ejn.16257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/27/2024]
Abstract
This study aimed to examine whether observing an expert's action swapped with an observer's face increases corticospinal excitability during combined action observation and motor imagery (AOMI). Twelve young males performed motor imagery of motor tasks with different difficulties while observing the actions of an expert performer and an expert performer with a swapped face. Motor tasks included bilateral wrist dorsiflexion (EASY) and unilateral two-ball rotating motions (DIFF). During the AOMI of EASY and DIFF, single-pulse transcranial magnetic stimulation was delivered to the left primary motor cortex, and motor-evoked potentials (MEPs) were obtained from the extensor carpi ulnaris and first dorsal interosseous muscles of the right upper limb, respectively. Visual analogue scale (VAS) assessed the subjective similarity of the expert performer with the swapped face in the EASY and DIFF to the participants themselves. The MEP amplitude in DIFF was larger in the observation of the expert performer with the swapped face than that of the expert performer (P = 0.012); however, the corresponding difference was not observed in EASY (P = 1.000). The relative change in the MEP amplitude from observing the action of the expert performer to that of the expert performer with the swapped face was positively correlated with VAS only in DIFF (r = 0.644, P = 0.024). These results indicate that observing the action of an expert performer with the observer's face enhances corticospinal excitability during AOMI, depending on the task difficulty and subjective similarity between the expert performer being observed and the observer.
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Affiliation(s)
- Hironori Watanabe
- Department of Sports and Life Sciences, National Institute of Fitness and Sports in Kanoya, Kagoshima, Japan
- Faculty of Human Sciences, Waseda University, Saitama, Japan
| | - Sohei Washino
- Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology, Chiba, Japan
| | - Shigehiko Ogoh
- Department of Biomedical Engineering, Toyo University, Saitama, Japan
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, UK
| | - Naokazu Miyamoto
- Faculty of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Hiroaki Kanehisa
- Department of Sports and Life Sciences, National Institute of Fitness and Sports in Kanoya, Kagoshima, Japan
| | - Hirokazu Kato
- Division of Information Science, Nara Institute of Science and Technology, Nara, Japan
| | - Yasuhide Yoshitake
- Graduate School of Science and Technology, Shinshu University, Nagano, Japan
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Australia
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Molnar-Szakacs I, Uddin LQ. Laterality and hemispheric specialization of self-face recognition. Neuropsychologia 2023; 186:108586. [PMID: 37236528 DOI: 10.1016/j.neuropsychologia.2023.108586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/21/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023]
Abstract
Inspired by the pioneering work of Eran Zaidel beginning in the early 1970's on the role of the two cerebral hemispheres of the human brain in self-related cognition, we review research on self-face recognition from a laterality perspective. The self-face is an important proxy of the self, and self-face recognition has been used as an indicator of self-awareness more broadly. Over the last half century, behavioral and neurological data, along with over two decades of neuroimaging research evidence have accumulated on this topic, generally concluding a right-hemisphere dominance for self-face recognition. In this review, we briefly revisit the pioneering roots of this work by Sperry, Zaidel & Zaidel, and focus on the important body of neuroimaging literature on self-face recognition it has inspired. We conclude with a brief discussion of current models of self-related processing and future directions for research in this area.
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Affiliation(s)
| | - Lucina Q Uddin
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, CA, USA; Department of Psychology, University of California Los Angeles, CA, USA.
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Zhang R, Zeng Y, Tong L, Yan B. Specific Neural Mechanisms of Self-Cognition and the Application of Brainprint Recognition. BIOLOGY 2023; 12:biology12030486. [PMID: 36979177 PMCID: PMC10044822 DOI: 10.3390/biology12030486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/12/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
The important identity attribute of self-information presents unique cognitive processing advantages in psychological experiments and has become a research hotspot in psychology and brain science. The unique processing mode of own information has been widely verified in visual and auditory experiments, which is a unique neural processing method for own name, face, voice and other information. In the study of individual behavior, the behavioral uniqueness of self-information is reflected in the faster response of the human brain to self-information, the higher attention to self-information, and the stronger memory level of self-reference. Brain imaging studies have also presented the uniqueness of self-cognition in the brain. EEG studies have shown that self-information induces significant P300 components. fMRI and PET results show that the differences in self and non-self working patterns were located in the frontal and parietal lobes. In addition, this paper combines the self-uniqueness theory and brain-print recognition technology to explore the application of self-information in experimental design, channel combination strategy and identity feature selection of brainprints.
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Affiliation(s)
- Rongkai Zhang
- Henan Key Laboratory of Imaging and Intelligent Processing, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China
| | - Ying Zeng
- Henan Key Laboratory of Imaging and Intelligent Processing, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China
| | - Li Tong
- Henan Key Laboratory of Imaging and Intelligent Processing, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China
| | - Bin Yan
- Henan Key Laboratory of Imaging and Intelligent Processing, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China
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An Experimental Study of Subliminal Self-Face Processing in Depersonalization-Derealization Disorder. Brain Sci 2022; 12:brainsci12121598. [PMID: 36552058 PMCID: PMC9775423 DOI: 10.3390/brainsci12121598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/13/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
The self-perception or self-experience of patients with depersonalization/derealization disorder (DPD) is altered, leading to a profound disruption in self-awareness. The main aim of the study is to explore the characteristics of subliminal self-face processing in DPD patients. To our knowledge, this is the first experimental study that has measured and evaluated subliminal self-processing in DPD. To better understand this, we examined the ability of patients with DPD and healthy controls (HC) to identify pictures of faces using an experimental paradigm of breaking continuous flash suppression. There were 23 DPD outpatients from Beijing Anding Hospital, Capital Medical University and 23 matched HC who participated in this experiment. The time needed for a face to break into awareness was taken as the measure of participants' subliminal processing of that face. The results indicated that there were significant differences between the DPD patients and HC in subliminal reaction times to different faces. Under experimental conditions, the average reaction response of self-face recognition in the HC group was significantly faster than for a famous face. However, this difference was not observed in DPD patients, which means that DPD patients did not show the processing advantage of their own faces as did the HC. The results suggest a deficit in subliminal self-face processing in DPD.
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Coenen VA, Schlaepfer TE, Sajonz BEA, Reinacher PC, Döbrössy MD, Reisert M. "The Heart Asks Pleasure First"-Conceptualizing Psychiatric Diseases as MAINTENANCE Network Dysfunctions through Insights from slMFB DBS in Depression and Obsessive-Compulsive Disorder. Brain Sci 2022; 12:438. [PMID: 35447971 PMCID: PMC9028695 DOI: 10.3390/brainsci12040438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 02/04/2023] Open
Abstract
More than a decade ago, deep brain stimulation (DBS) of the superolateral medial forebrain bundle (slMFB), as part of the greater MFB system, had been proposed as a putative yet experimental treatment strategy for therapy refractory depression (TRD) and later for obsessive-compulsive disorders (OCD). Antidepressant and anti-OCD efficacy have been shown in open case series and smaller trials and were independently replicated. The MFB is anato-physiologically confluent with the SEEKING system promoting euphoric drive, reward anticipation and reward; functions realized through the mesocorticolimbic dopaminergic system. Growing clinical experience concerning surgical and stimulation aspects from a larger number of patients shows an MFB functionality beyond SEEKING and now re-informs the scientific rationale concerning the MFB's (patho-) physiology. In this white paper, we combine observations from more than 75 cases of slMFB DBS. We integrate these observations with a selected literature review to provide a new neuroethological view on the MFB. We here formulate a re-interpretation of the MFB as the main structure of an integrated SEEKING/MAINTENANCE circuitry, allowing for individual homeostasis and well-being through emotional arousal, basic and higher affect valence, bodily reactions, motor programing, vigor and flexible behavior, as the basis for the antidepressant and anti-OCD efficacy.
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Affiliation(s)
- Volker A. Coenen
- Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany; (B.E.A.S.); (P.C.R.); (M.D.D.); (M.R.)
- Medical Faculty, Freiburg University, 79106 Freiburg, Germany;
- Center for Deep Brain Stimulation, Medical Center of Freiburg University, 79106 Freiburg, Germany
- Laboratory of Stereotaxy and Interventional Neurosciences, Department of Stereotactic and Functional, Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany
| | - Thomas E. Schlaepfer
- Medical Faculty, Freiburg University, 79106 Freiburg, Germany;
- Center for Deep Brain Stimulation, Medical Center of Freiburg University, 79106 Freiburg, Germany
- Department of Interventional Biological Psychiatry, Medical Center of University of Freiburg, 79106 Freiburg, Germany
| | - Bastian E. A. Sajonz
- Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany; (B.E.A.S.); (P.C.R.); (M.D.D.); (M.R.)
- Medical Faculty, Freiburg University, 79106 Freiburg, Germany;
| | - Peter C. Reinacher
- Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany; (B.E.A.S.); (P.C.R.); (M.D.D.); (M.R.)
- Medical Faculty, Freiburg University, 79106 Freiburg, Germany;
- Fraunhofer Institute for Laser Technology (ILT), 52074 Aachen, Germany
| | - Máté D. Döbrössy
- Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany; (B.E.A.S.); (P.C.R.); (M.D.D.); (M.R.)
- Medical Faculty, Freiburg University, 79106 Freiburg, Germany;
- Laboratory of Stereotaxy and Interventional Neurosciences, Department of Stereotactic and Functional, Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany
- Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Marco Reisert
- Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, 79106 Freiburg, Germany; (B.E.A.S.); (P.C.R.); (M.D.D.); (M.R.)
- Medical Faculty, Freiburg University, 79106 Freiburg, Germany;
- Department of Diagnostic and Interventional Radiology, Medical Physics, Medical Center of University of Freiburg, 79106 Freiburg, Germany
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