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Dun W, Fan T, Wang Q, Wang K, Yang J, Li H, Liu J, Liu H. Association Between Trait Empathy and Resting Brain Activity in Women With Primary Dysmenorrhea During the Pain and Pain-Free Phases. Front Psychiatry 2020; 11:608928. [PMID: 33324267 PMCID: PMC7725799 DOI: 10.3389/fpsyt.2020.608928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/04/2020] [Indexed: 12/01/2022] Open
Abstract
Empathy refers to the ability to understand someone else's emotions and fluctuates with the current state in healthy individuals. However, little is known about the neural network of empathy in clinical populations at different pain states. The current study aimed to examine the effects of long-term pain on empathy-related networks and whether empathy varied at different pain states by studying primary dysmenorrhea (PDM) patients. Multivariate partial least squares was employed in 46 PDM women and 46 healthy controls (HC) during periovulatory, luteal, and menstruation phases. We identified neural networks associated with different aspects of empathy in both groups. Part of the obtained empathy-related network in PDM exhibited a similar activity compared with HC, including the right anterior insula and other regions, whereas others have an opposite activity in PDM, including the inferior frontal gyrus and right inferior parietal lobule. These results indicated an abnormal regulation to empathy in PDM. Furthermore, there was no difference in empathy association patterns in PDM between the pain and pain-free states. This study suggested that long-term pain experience may lead to an abnormal function of the brain network for empathy processing that did not vary with the pain or pain-free state across the menstrual cycle.
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Affiliation(s)
- Wanghuan Dun
- Department of Intensive Care Unit, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Rehabilitation Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tongtong Fan
- Department of Medical Imaging, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qiming Wang
- School of Life Science and Technology, Center for Brain Imaging, Xidian University, Xi'an, China
| | - Ke Wang
- Department of Medical Imaging, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jing Yang
- Department of Medical Imaging, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hui Li
- Department of Medical Imaging, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jixin Liu
- School of Life Science and Technology, Center for Brain Imaging, Xidian University, Xi'an, China
| | - Hongjuan Liu
- Department of Intensive Care Unit, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Wang Y, Zhang X, Guan Q, Wan L, Yi Y, Liu CF. Altered regional homogeneity of spontaneous brain activity in idiopathic trigeminal neuralgia. Neuropsychiatr Dis Treat 2015; 11:2659-66. [PMID: 26508861 PMCID: PMC4610767 DOI: 10.2147/ndt.s94877] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The pathophysiology of idiopathic trigeminal neuralgia (ITN) has conventionally been thought to be induced by neurovascular compression theory. Recent structural brain imaging evidence has suggested an additional central component for ITN pathophysiology. However, far less attention has been given to investigations of the basis of abnormal resting-state brain activity in these patients. The objective of this study was to investigate local brain activity in patients with ITN and its correlation with clinical variables of pain. Resting-state functional magnetic resonance imaging data from 17 patients with ITN and 19 age- and sex-matched healthy controls were analyzed using regional homogeneity (ReHo) analysis, which is a data-driven approach used to measure the regional synchronization of spontaneous brain activity. Patients with ITN had decreased ReHo in the left amygdala, right parahippocampal gyrus, and left cerebellum and increased ReHo in the right inferior temporal gyrus, right thalamus, right inferior parietal lobule, and left postcentral gyrus (corrected). Furthermore, the increase in ReHo in the left precentral gyrus was positively correlated with visual analog scale (r=0.54; P=0.002). Our study found abnormal functional homogeneity of intrinsic brain activity in several regions in ITN, suggesting the maladaptivity of the process of daily pain attacks and a central role for the pathophysiology of ITN.
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Affiliation(s)
- Yanping Wang
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China ; Department of Neurology, The Second Hospital of Jiaxing City, Jiaxing, Zhejiang Province, People's Republic of China
| | - Xiaoling Zhang
- Department of Neurology, The Second Hospital of Jiaxing City, Jiaxing, Zhejiang Province, People's Republic of China
| | - Qiaobing Guan
- Department of Neurology, The Second Hospital of Jiaxing City, Jiaxing, Zhejiang Province, People's Republic of China
| | - Lihong Wan
- Department of Neurology, The Second Hospital of Jiaxing City, Jiaxing, Zhejiang Province, People's Republic of China
| | - Yahui Yi
- Department of Neurology, The Second Hospital of Jiaxing City, Jiaxing, Zhejiang Province, People's Republic of China
| | - Chun-Feng Liu
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China
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Zuo XN, Xu T, Jiang L, Yang Z, Cao XY, He Y, Zang YF, Castellanos FX, Milham MP. Toward reliable characterization of functional homogeneity in the human brain: preprocessing, scan duration, imaging resolution and computational space. Neuroimage 2012; 65:374-86. [PMID: 23085497 DOI: 10.1016/j.neuroimage.2012.10.017] [Citation(s) in RCA: 380] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 10/05/2012] [Accepted: 10/10/2012] [Indexed: 01/20/2023] Open
Abstract
While researchers have extensively characterized functional connectivity between brain regions, the characterization of functional homogeneity within a region of the brain connectome is in early stages of development. Several functional homogeneity measures were proposed previously, among which regional homogeneity (ReHo) was most widely used as a measure to characterize functional homogeneity of resting state fMRI (R-fMRI) signals within a small region (Zang et al., 2004). Despite a burgeoning literature on ReHo in the field of neuroimaging brain disorders, its test-retest (TRT) reliability remains unestablished. Using two sets of public R-fMRI TRT data, we systematically evaluated the ReHo's TRT reliability and further investigated the various factors influencing its reliability and found: 1) nuisance (head motion, white matter, and cerebrospinal fluid) correction of R-fMRI time series can significantly improve the TRT reliability of ReHo while additional removal of global brain signal reduces its reliability, 2) spatial smoothing of R-fMRI time series artificially enhances ReHo intensity and influences its reliability, 3) surface-based R-fMRI computation largely improves the TRT reliability of ReHo, 4) a scan duration of 5 min can achieve reliable estimates of ReHo, and 5) fast sampling rates of R-fMRI dramatically increase the reliability of ReHo. Inspired by these findings and seeking a highly reliable approach to exploratory analysis of the human functional connectome, we established an R-fMRI pipeline to conduct ReHo computations in both 3-dimensions (volume) and 2-dimensions (surface).
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Affiliation(s)
- Xi-Nian Zuo
- Laboratory for Functional Connectome and Development, Key Laboratory of Behavioral Science, Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China.
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Laming PR, Bullock TH, McClune MC. Changes in EEG power, acoustic evoked potentials and heart rate after mildly arousing non-acoustic priming stimuli in carp (Cyprinus carpio). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. A, COMPARATIVE PHYSIOLOGY 1991; 100:81-93. [PMID: 1682104 DOI: 10.1016/0300-9629(91)90187-h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
1. Changes in EEG power spectrum of carp to a priming non-acoustic stimulus followed by acoustic clicks were compared to those due to acoustic clicks delivered alone. Recordings were made from the telencephalon, midbrain and medulla. Acoustic evoked potentials (AEPs) to the clicks were also recorded. 2. EEG power changes to non-acoustic stimuli occurred over the whole 1-40 Hz frequency range and were regionally specific and consistent. 3. The changes in the EEG midfrequency 12-24 Hz power spectrum to non-acoustic stimuli were significantly correlated with changes in the AEP to subsequent clicks. An elevated medullary AEP amplitude and reduced duration were correlated with increased medullary EEG power and increased midbrain AEP duration. 4. Telencephalic EEG power changes were inversely related to changes in medullary and midbrain AEP amplitude.
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Affiliation(s)
- P R Laming
- Division of Cell and Experimental Biology, School of Biology and Biochemistry, Queen's University of Belfast, U.K
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Kostopoulos G, Gotman J. Computer assisted analysis of relations between single-unit activity and spontaneous EEG. ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY 1984; 57:69-82. [PMID: 6198145 DOI: 10.1016/0013-4694(84)90009-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two mutually complementary computer methods are described which can be used for the study of unit-EEG relationships during spontaneous EEG waves. The first one consists of using the unit activity to trigger the averaging of sections of EEG preceding and following each unit; the same unit activity is used for building a histogram of unit firing from another cell. Sections of data subjected to this analysis need not be continuous; they may be chosen interactively on the computer terminal, thus allowing to analyze intermittent phenomena. The second method consists of using a particular point of an EEG wave to trigger EEG averages from other channels as well as unit histograms. Here again the waves are chosen interactively. The unit-triggered EEG averages are more objective and less time consuming. However, they do not describe accurately the characteristics of the individual wave to which a unit firing is associated and also they give no information about inhibitory phenomena. Both these drawbacks are corrected by the wave-triggered unit histograms where the experimenter interactively selects and stores for analysis EEG waves with the appropriate characteristics. Several examples are given from the utilization of these programs in neurophysiological and neuropharmacological experiments, with special emphasis on generalized epilepsy.
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Spatially localized interactive neural populations—II: Stability and dynamics of excitatory sets. Bull Math Biol 1982. [DOI: 10.1007/bf02459418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Harper RM, Sieck GC. Discharge correlations between neurons in the nucleus parabrachialis medialis during sleep-waking states. Brain Res 1980; 199:343-58. [PMID: 7417788 DOI: 10.1016/0006-8993(80)90694-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Spontaneous activity from simultaneously recorded pairs of neurons in the nucleus parabrachialis medialis(NPBM) was examined in unanesthetized, unrestrained cats during each sleep-waking state. Functional interconnections between pairs of neurons were studied with cross-correlation techniques. A total of 40 neuronal pairs were studied, 38 of which were recorded on separate, but proximal electrodes, and two pairs of which were recorded on the same electrode. Of the 40 pairs of neurons examined, 22 showed short delay (< 4 msec) peaks in the cross correlogram of their spike activity. These correlations tended to be highest in quiet sleep (QS). Increased probability of shared discharge with intermediate delays in the peaks of the cross-correlogram (5-150 msec) was observed in 16 of 40 pairs. The increase in correlation at intermediate delays followed a period of decreased shared activity. Activity at intermediate delay peaks was reduced during rapid eye movement (REM) sleep, and appeared with a shorter delay during that state. Long delay correlation peaks ranging from 0.5 to 6 sec appeared in 23 of 40 neuronal pairs, but only in waking and in REM sleep.
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Ball GJ, Gloor P, Thompson CJ. Computed unit-EEG correlations and laminar profiles of spindle waves in the electroencephalogram of cats. ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY 1977; 43:330-45. [PMID: 70335 DOI: 10.1016/0013-4694(77)90257-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Robinson DN. Statistical features of brain responses under conditions of attention and habituation. Psychol Rep 1973; 32:287-92. [PMID: 4686078 DOI: 10.2466/pr0.1973.32.1.287] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This research is concerned with the variance of average evoked responses (AER) under conditions of habituation and that of attentive viewing. The major findings suggest that habituation is the result of increased activity in central sensory systems but an activity that is less organized than that resulting from attentive-state stimulation. Data are also presented which assess certain broad assumptions common to AER research.
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Werner G, Whitsel BL. Functional Organization of the Somatosensory Cortex. SOMATOSENSORY SYSTEM 1973. [DOI: 10.1007/978-3-642-65438-1_17] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Krekule I, Walker D. Simple on-line method for the detection of the dependence between the unit activity and amplitude of macropotentials. ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY 1971; 30:565-7. [PMID: 4105654 DOI: 10.1016/0013-4694(71)90155-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abstract
The influence of basic open-loop synaptic connections on the firing of simultaneously recorded neurons has been investigated with auto- and cross-correlation histograms, using experimental records and computer simulations. The basic connections examined were direct synaptic excitation, direct synaptic inhibition, and shared synaptic input. Each type of synaptic connection produces certain characteristic features in the cross-correlogram depending on the properties of the synapse and statistical features in the firing pattern of each neuron. Thus, empirically derived cross-correlation measures can be interpreted in terms of the underlying physiological mechanisms. Their potential uses and limitations in the detection and identification of synaptic connections between neurons whose extracellularly recorded spike trains are available are discussed.
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Abstract
Human subjects were trained by traditional methods of instrumental conditioning to change the amplitude of a late component of the auditory evoked potential with and without oscilloscopic feedback of their performance.
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John ER, Morgades PP. Neural correlates of conditioned responses studied with multiple chronically implanted moving microelectrodes. Exp Neurol 1969; 23:412-25. [PMID: 5767264 DOI: 10.1016/0014-4886(69)90088-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Fox SS, Rudell AP. Operant controlled neural event: formal and systematic approach to electrical coding of behavior in brain. Science 1968; 162:1299-302. [PMID: 5699208 DOI: 10.1126/science.162.3859.1299] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Traditional studies of electrophysiological correlates of behavior contain inherent high variability resulting from the arbitrary choice of behaviors, brain locations, and wave parameters. The operant control of neural events is a formal and systematic approach to the study of prespecified parameters and components of brain activity as they encode behaviors. Two studies in which the electrical activity of brain was the criterion for reinforcement demonstrate the acquisition, under such operant control, of two mutually exclusive behaviors or states which selectively alter evoked potential components.
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