Search results for '*Electrical Activity' (try it on Scholar)

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  1. Jirí Wackerman, Peter Pütz, Simone Büchi, Inge Strauch & Dietrich Lehmann (2002). Brain Electrical Activity and Subjective Experience During Altered States of Consciousness: Ganzfeld and Hypnagogic States. International Journal of Psychophysiology 46 (2):123-146.score: 147.0
  2. David LaBerge (2001). Attention, Consciousness, and Electrical Wave Activity Within the Cortical Column. International Journal of Psychophysiology 43 (1):5-24.score: 127.0
  3. Sharee N. Light, James A. Coan, Corrina Frye & Richard J. Davidson, Empathy Is Associated With Dynamic Change in Prefrontal Brain Electrical Activity During Positive Emotion in Children.score: 126.0
    Empathy is the combined ability to interpret the emotional states of others and experience resultant, related emotions. The relation between prefrontal electroencephalographic asymmetry and emotion in children is well known. The association between positive emotion (assessed via parent report), empathy (measured via observation), and second-by-second brain electrical activity (recorded during a pleasurable task) was investigated using a sample of one hundred twenty-eight 6- to 10-year-old children. Contentment related to increasing left frontopolar activation (p < .05). Empathic concern and positive (...)
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  4. J. M. Hadley (1941). Some Relationships Between Electrical Signs of Central and Peripheral Activity: II. During 'Mental Work.'. Journal of Experimental Psychology 28 (1):53.score: 119.0
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  5. J. M. Hadley (1940). Some Relationships Between Electrical Signs of Central and Peripheral Activity: I. During Rest. Journal of Experimental Psychology 27 (6):640.score: 119.0
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  6. Agnès Aubert, Robert Costalat & Romain Valabrègue (2001). Modelling of the Coupling Between Brain Electrical Activity and Metabolism. Acta Biotheoretica 49 (4).score: 106.0
    In order to make an attempt at grouping the various aspects of brain functional imaging (fMRI, MRS, EEG-MEG, ...) within a coherent frame, we implemented a model consisting of a system of differential equations, that includes: (1) sodium membrane transport, (2) Na/K ATPase, (3) neuronal energy metabolism (i.e. glycolysis, buffering effect of phosphocreatine, and mitochondrial respiration), (4) blood-brain barrier exchanges and (5) brain hemodynamics, all the processes which are involved in the activation of brain areas. We assumed that the correlation (...)
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  7. Joseph S. King, Mix Xie, Bibo Zheng & Karl H. Pribram (2000). Maps of Surface Distributions of Electrical Activity in Spectrally Derived Receptive Fields of the Rat's Somatosensory Cortex. Brain and Mind 1 (3):327-349.score: 105.0
    This study describes the results of experiments motivated by an attempt to understand spectral processing in the cerebral cortex (DeValois and DeValois, 1988; Pribram, 1971, 1991). This level of inquiry concerns processing within a restricted cortical area rather than that by which spatially separate circuits become synchronized during certain behavioral and experiential processes. We recorded neural responses for 55 locations in the somatosensory (barrel) cortex of the rat to various combinations of spatial frequency (texture) and temporal frequency stimulation of their (...)
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  8. S. King Joseph, Bibo Zheng Mix Xie & H. Pribram Karl (2000). Maps of Surface Distributions of Electrical Activity in Spectrally Derived Receptive Fields of the Rat's Somatosensory Cortex. Brain and Mind 1 (3).score: 105.0
    This study describes the results of experiments motivated by an attempt to understand spectral processing in the cerebral cortex (DeValois and DeValois, 1988; Pribram, 1971, 1991). This level of inquiry concerns processing within a restricted cortical area rather than that by which spatially separate circuits become synchronized during certain behavioral and experiential processes. We recorded neural responses for 55 locations in the somatosensory (barrel) cortex of the rat to various combinations of spatial frequency (texture) and temporal frequency stimulation of their (...)
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  9. K. A. Paller, M. Kutas & H. K. McIsaac (1995). Monitoring Conscious Recollection Via the Electrical Activity of the Brain. Psychological Science 6:107-11.score: 105.0
     
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  10. Kara I. (2008). Effects of L-Arginine on Electrical Activity in Rats Subjected to Cerebral Ischemia-Reperfusion. Frontiers in Human Neuroscience 2.score: 100.0
  11. Thomas L. Bennett, Paula L. Hill & Jonathan French (1982). Biotelemetry Recording of the Electrical Activity of the Hippocampus and Amygdala During Sexual Behavior in the Cat. Bulletin of the Psychonomic Society 20 (1):57-60.score: 100.0
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  12. Kara I. (2008). The Electrical Activity of CA1 Areas in Acutely 7-Nitroindazole Treated Rats in Ischemia-Reperfusion. Frontiers in Human Neuroscience 2.score: 100.0
  13. Michael S. Myslobodsky, Varda Ben-Mayor, Batia Yedid-Levy & Matti Minz (1976). Interhemispheric Asymmetry of Electrical Activity of the Brain in Sleep and “Cerebral Dominance”. Bulletin of the Psychonomic Society 7 (5):465-467.score: 100.0
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  14. Louis A. Schmidt & Laurel J. Trainor (2001). Frontal Brain Electrical Activity (EEG) Distinguishes Valence and Intensity of Musical Emotions. Cognition and Emotion 15 (4):487-500.score: 100.0
  15. C. H. Vanderwolf (1978). What Does Cortical Electrical Activity Have to Do with Sleep? Behavioral and Brain Sciences 1 (3):507.score: 100.0
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  16. Daniel A. Pollen (2006). Brain Stimulation and Conscious Experience: Electrical Stimulation of the Cortical Surface at a Threshold Current Evokes Sustained Neuronal Activity Only After a Prolonged Latency. Consciousness and Cognition 15 (3):560-565.score: 90.0
    Libet demonstrated that a substantial duration (>0.5-1.0 s) of direct electrical stimulation of the surface of a sensory cortex at a threshold or liminal current is required before a subject can experience a percept. Libet and his co-workers originally proposed that the result could be due either to spatial and temporal facilitation of the underlying neurons or additionally to a prolonged central processing time. However, over the next four decades, Libet chose to attribute the prolonged latency for evoking conscious experience (...)
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  17. Wolfgang Skrandies (1999). Early Effects of Semantic Meaning on Electrical Brain Activity. Behavioral and Brain Sciences 22 (2):301-302.score: 90.0
    When words are read, the visual cortex is activated, independent of whether visual or motor associations are elicited. This word-evoked brain activity is significantly influenced by semantic meaning. Such effects occur very early after stimulus presentation (at latencies between 80 and 130 msec), indicating that semantic meaning activates different neuronal assemblies in the human visual cortex when words are processed.
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  18. Buzsaki Gyorgy (2011). Perturbation of Neuronal Activity by Transcranial Electrical Stimulation (TES) and Optogenetic Tools in Animals. Frontiers in Human Neuroscience 5.score: 80.0
  19. Christopher Summerfield, Anthony Ian Jack & Adrian Philip Burgess (2002). Induced Gamma Activity is Associated with Conscious Awareness of Pattern Masked Nouns. International Journal of Psychophysiology 44 (2):93-100.score: 67.0
  20. Adrian P. Burgess & Lia Ali (2002). Functional Connectivity of Gamma EEG Activity is Modulated at Low Frequency During Conscious Recollection. International Journal of Psychophysiology 46 (2):91-100.score: 67.0
  21. Emrah Duzel (2000). What Brain Activity Tells Us About Conscious Awareness of Memory Retrieval. In Endel Tulving (ed.), Memory, Consciousness, and the Brain: The Tallinn Conference. Psychology Press. 173-187.score: 67.0
  22. H. H. Jasper, C. S. Bridgman & L. Carmichael (1937). An Ontogenetic Study of Cerebral Electrical Potentials in the Guinea Pig. Journal of Experimental Psychology 21 (1):63.score: 60.0
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  23. C. H. Vanderwolf & T. E. Robinson (1981). Reticulo-Cortical Activity and Behavior: A Critique of the Arousal Theory and a New Synthesis. Behavioral and Brain Sciences 4 (3):459-476.score: 56.0
    It is traditionally believed that cerebral activation (the presence of low voltage fast electrical activity in the neocortex and rhythmical slow activity in the hippocampus) is correlated with arousal, while deactivation (the presence of large amplitude irregular slow waves or spindles in both the neocortex and the hippocampus) is correlated with sleep or coma. However, since there are many exceptions, these generalizations have only limited validity. Activated patterns occur in normal sleep (active or paradoxical sleep) and during states (...)
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  24. Terence V. Sewards & Mark A. Sewards (2000). Visual Awareness Due to Neuronal Activities in Subcortical Structures: A Proposal. Consciousness and Cognition 9 (1):86-116.score: 52.0
    It has been shown that visual awareness in the blind hemifield of hemianopic cats that have undergone unilateral ablations of visual cortex can be restored by sectioning the commissure of the superior colliculus or by destroying a portion of the substantia nigra contralateral to the cortical lesion (the Sprague effect). We propose that the visual awareness that is recovered is due to synchronized oscillatory activities in the superior colliculus ipsilateral to the cortical lesion. These oscillatory activities are normally partially suppressed (...)
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  25. Lucas Spierer Camille F. Chavan, Aurelie L. Manuel, Michael Mouthon (2013). Spontaneous Pre-Stimulus Fluctuations in the Activity of Right Fronto-Parietal Areas Influence Inhibitory Control Performance. Frontiers in Human Neuroscience 7.score: 50.0
    Inhibitory control refers to the ability to suppress planned or ongoing cognitive or motor processes. Electrophysiological indices of inhibitory control failure have been found to manifest even before the presentation of the stimuli triggering the inhibition, suggesting that pre-stimulus brain-states modulate inhibition performance. However, previous electrophysiological investigations on the state-dependency of inhibitory control were based on averaged event-related potentials, a method eliminating the variability in the ongoing brain activity not time-locked to the event of interest. These studies thus left (...)
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  26. Markus Kiefer & Manfred Spitzer (2000). Time Course of Conscious and Unconscious Semantic Brain Activation. Neuroreport 11 (11):2401-2407.score: 47.0
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  27. Andrew Francis Leuchter, Ian A. Cook, Yi Jin & Bill Phillips (2013). The Relationship Between Brain Oscillatory Activity and Therapeutic Effectiveness of Transcranial Magnetic Stimulation in the Treatment of Major Depressive Disorder. Frontiers in Human Neuroscience 7.score: 46.0
    Major Depressive Disorder (MDD) is marked by disturbances in brain functional connectivity. This connectivity is modulated by rhythmic oscillations of brain electrical activity, which enable coordinated functions across brain regions. Oscillatory activity plays a central role in regulating thinking and memory, mood, cerebral blood flow, and neurotransmitter levels, and restoration of normal oscillatory patterns is associated with effective treatment of MDD. Repetitive Transcranial Magnetic Stimulation (rTMS) is a robust treatment for MDD, but the mechanism of action (MOA) of (...)
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  28. Andrea Antal Catarina Saiote, Zsolt Turi, Walter Paulus (2013). Combining Functional Magnetic Resonance Imaging with Transcranial Electrical Stimulation. Frontiers in Human Neuroscience 7.score: 44.0
    Transcranial electrical stimulation (tES) is a neuromodulatory method with promising potential for basic research and as a therapeutic tool. The most explored type of tES is transcranial direct current stimulation (tDCS), but also transcranial alternating current stimulation (tACS) and transcranial random noise stimulation (tRNS) have been shown to affect cortical excitability, behavioral performance and brain activity. Although providing indirect measure of brain activity, functional magnetic resonance imaging (fMRI) can tell us more about the global effects of stimulation in (...)
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  29. Herms Romijn (2002). Are Virtual Photons the Elementary Carriers of Consciousness? Journal of Consciousness Studies 9 (1):61-81.score: 40.0
  30. Evan Thompson & Francisco J. Varela (2001). Radical Embodiment: Neural Dynamics and Consciousness. Trends in Cognitive Sciences 5 (10):418-425.score: 40.0
  31. E. Roy John (2003). A Theory of Consciousness. Current Directions in Psychological Science 12 (6):244-250.score: 40.0
  32. Alarik T. Arenander & Frederick T. Travis (2004). Brain Patterns of Self-Awareness. In Bernard D. Beitman & Jyotsna Nair (eds.), Self-Awareness Deficits in Psychiatric Patients: Neurobiology, Assessment, and Treatment. W.W. Norton & Co. 112-126.score: 40.0
  33. Kai Vogeley, M. May, A. Ritzl, P. Falkai, K. Zilles & Gereon R. Fink (2004). Neural Correlates of First-Person Perspective as One Constituent of Human Self-Consciousness. Journal of Cognitive Neuroscience 16 (5):817-827.score: 40.0
  34. Kimford J. Meador, P. G. Ray, J. R. Echauz, D. W. Loring & G. J. Vachtsevanos (2002). Gamma Coherence and Conscious Perception. Neurology 59 (6):847-854.score: 40.0
  35. C. Vanderwolf (2000). Are Neocortical Gamma Waves Related to Consciousness? Brain Research 855 (2):217-224.score: 40.0
  36. Justus V. Verhagen (2007). The Neurocognitive Bases of Human Multimodal Food Perception: Consciousness. Brain Research Reviews 53 (2):271-286.score: 40.0
  37. Ulrich Mayr (2004). Conflict, Consciousness, and Control. Trends in Cognitive Sciences 8 (4):145-148.score: 40.0
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  38. F. Varela (2002). Upwards and Downwards Causation in the Brain: Case Studies on the Emergence and Efficacy of Consciousness. In Kunio Yasue, Marj Jibu & Tarcisio Della Senta (eds.), No Matter, Never Mind. John Benjamins. 33--95.score: 40.0
  39. P. V. Bundzen, V. V. Zagrantsev, K. G. Korotkov, P. Leisner & L. -E. Unestahl (2000). Comprehsnive Bioelectrographic Analysis of Mechanisms of the Alternative State of Consciousness. Human Physiology 26 (5):558-566.score: 40.0
  40. Dominic H. ffytche & Delphine Pins (2003). Are Neural Correlates of Visual Consciousness Retinotopic? Neuroreport 14 (16):2011-2014.score: 40.0
  41. William D. S. Killgore & Deborah A. Yurgelun-Todd (2007). Unconscious Processing of Facial Affect in Children and Adolescents. Social Neuroscience 2 (1):28-47.score: 40.0
  42. K. Konno, Y. Katayama & T. Yamamoto (2002). Consciousness and the Intercortical Correlation Function of Electroencephalograms. In Kunio Yasue, Marj Jibu & Tarcisio Della Senta (eds.), No Matter, Never Mind. John Benjamins.score: 40.0
     
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  43. Lucas C. Parra Davide Reato, Asif Rahman, Marom Bikson (2013). Effects of Weak Transcranial Alternating Current Stimulation on Brain Activity—a Review of Known Mechanisms From Animal Studies. Frontiers in Human Neuroscience 7.score: 38.0
    Rhythmic neuronal activity is ubiquitous in the human brain. These rhythms originate from a variety of different network mechanisms, which give rise to a wide-ranging spectrum of oscillation frequencies. In the last few years an increasing number of clinical research studies have explored transcranial alternating current stimulation (tACS) with weak current as a tool for affecting brain function. The premise of these interventions is that tACS will interact with ongoing brain oscillations. However, the exact mechanisms by which weak currents (...)
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  44. Jui-Yang Chang, Andrea Pigorini, Marcello Massimini, Giulio Tononi, Lino Nobili & Barry D. Van Veen (2012). Multivariate Autoregressive Models with Exogenous Inputs for Intracerebral Responses to Direct Electrical Stimulation of the Human Brain. Frontiers in Human Neuroscience 6.score: 36.0
    A multivariate autoregressive model with exogenous inputs is developed for describing the cortical interactions excited by direct electrical current stimulation of the cortex. Current stimulation is challenging to model because it excites neurons in multiple locations both near and distant to the stimulation site. The approach presented here models these effects using an exogenous input that is passed through a bank of filters, one for each channel. The filtered input and a random input excite a multivariate autoregressive system describing the (...)
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  45. Josef Parvizi Aslihan Selimbeyoglu (2010). Electrical Stimulation of the Human Brain: Perceptual and Behavioral Phenomena Reported in the Old and New Literature. Frontiers in Human Neuroscience 4.score: 36.0
    In this review, we summarize the subjective experiential phenomena and behavioral changes that are caused by electrical stimulation of the cerebral cortex or subcortical nuclei in awake and conscious human subjects. Our comprehensive review contains a detailed summary of the data obtained from electrical brain stimulation (EBS) in humans in the last 100 years. Findings from the EBS studies may provide an additional layer of information about the neural correlates of cognition and behavior in healthy human subjects, or the neuroanatomy (...)
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  46. Massimiliano Oliveri, Paolo Maria Rossini, Maria M. Filippi, Raimondo Traversa, Paola Cicinelli & Carlo Caltagirone (2002). Specific Forms of Neural Activity Associated with Tactile Space Awareness. Neuroreport 13 (8):997-1001.score: 33.0
  47. C. D. Chambers & J. B. Mattingley (2005). Neurodisruption of Selective Attention: Insights and Implications. Trends in Cognitive Sciences 9 (11):542-550.score: 32.0
    Mechanisms of selective attention are vital for coherent perception and action. Recent advances in cognitive neuroscience have yielded key insights into the relationship between neural mechanisms of attention and eye movements, and the role of frontal and parietal brain regions as sources of attentional control. Here we explore the growing contribution of reversible neurodisruption techniques, including transcranial magnetic stimulation and microelectrode stimulation, to the cognitive neuroscience of spatial attention. These approaches permit unique causal inferences concerning the relationship between neural processes (...)
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  48. Agnès Aubert, Robert Costalat, Hugues Duffau & Habib Benali (2002). Modeling of Pathophysiological Coupling Between Brain Electrical Activation, Energy Metabolism and Hemodynamics: Insights for the Interpretation of Intracerebral Tumor Imaging. Acta Biotheoretica 50 (4).score: 30.0
    Gliomas can display marked changes in the concentrations of energy metabolism molecules such as creatine (Cr), phosphocreatine (PCr) and lactate, as measured using magnetic resonance spectroscopy (MRS). Moreover, the BOLD (blood oxygen level dependent) contrast enhancement in functional magnetic resonance imaging (fMRI) can be reduced or missing within or near gliomas, while neural activity is not significantly reduced (so-called neurovascular decoupling), so that the location of functionally eloquent areas using fMRI can be erroneous. In this paper, we adapt a (...)
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  49. Matthew Boyle (2011). 'Making Up Your Mind' and the Activity of Reason. Philosophers' Imprint 11 (17).score: 24.0
    A venerable philosophical tradition holds that we rational creatures are distinguished by our capacity for a special sort of mental agency or self-determination: we can “make up” our minds about whether to accept a given proposition. But what sort of activity is this? Many contemporary philosophers accept a Process Theory of this activity, according to which a rational subject exercises her capacity for doxastic self-determination only on certain discrete occasions, when she goes through a process of consciously deliberating (...)
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  50. Richard Alterman (2008). Activity and Convention. Topoi 27 (1-2):127-138.score: 24.0
    This paper develops Lewis’ notion of convention within a framework that mixes cognitive science with some more social theories of activity like distributed cognition and activity theory. The close examination of everyday situations of convention-based activity will produce some interesting issues for a cognitive theory of behavior. Uncertainty, dynamics, and the complexities of the performance of convention-based activities that are distributed over time and/or place, are driving factors in the analysis that is presented. How the actors reason (...)
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