Abstract
Even simple ognitive behaviors involve a complex spatiotemporal sequence of coordinated processes in many neural regions. Evoked potentials (EPs) have the subsecond temporal resolution needed to track the flow of information through the brain while subjects perform cognitive tasks. To take full advantage of the information provided by the EPs, both the spatial topography and the temporal relationships of responses measured at different scalp sites must be considered. Toward this end, we have been developing methods for statistically characterizing coordinated processing in distributed cortical networks by analyzing the spatial covariance of EPs recorded from multiple scalp locations. This method is called Evoked Potential Covariance (EPC) analysis.
This paper describes the results of a series of experiments in which sub-second EPC patterns were measured during simple but complete cognitive behaviors—from stimulus expectancy, through stimulus evaluation and decision processes, to response execution and evaluation of feedback, in situations that required responses to the current stimulus, or responses to previous stimuli (thus requiring working memory). Differences in the EPC patterns across the 4- to 6-second intervals spanning the trials demonstrated that different cortical areas form functional associations during each subsequent stage of processing. Subdural electrical recordings suggest that the EPC measure is a physiologically meaningful method of characterizing the association between different brain areas. We speculate that the EPC patterns associated with prestimulus preparation and feedback-evoked updating are manifestations of the internal models created by the brain which provide the context within which stimuli are interpreted.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bastian HC (1898) Aphasia and other speech defects. London, Lewis
Bressler SL, Coppola R, Nakamura R (1993) Episodic multi regional cortical coherence at multiple frequencies during visual task performance. Nature 366:153–156
Callaway E, Harris P (1974) Coupling between cortical potentials from different areas. Science 183:873–875
Farah MJ, Peronnet F, Gonon MA, Giard MH (1988) Physiological evidence for a shared representional medium for visual images and visual percepts. J Exp Psychol General 117:248–257
Fuster JM (1989) The prefrontal cortex: anatomy, physiology, and neuropsychology of the frontal lobe. Raven Press, New York
Gaillard A (1978) Slow brain potentials preceding task performance. Academic Press, Amsterdam
Gersch W (1987) Non-stationary multichannel time series analysis. In: Gevins AS, Remond A (eds) Handbook of electroencephalography and clinical neurophysiology. Vol. 1. Methods of analysis of brain electrical and magnetic signals. Elsevier, Amsterdam, pp 171–193
Gevins AS (1987) Correlation Analysis. In: Gevins As, Remond A (eds) Handbook of electroencephalography and clinical neurophysiology. Vol. 1. Methods of analysis of brain electrical and magnetic signals. Elsevier, Amsterdam, pp 171–193
Gevins AS Bressler SL (1988) Functional topography of the human brain. In: Pfurt-scheller G (ed) Functional brain imaging. Hans Huber Publishers, Bern, pp 99–116
Gevins AS Cutillo BC (1993) Spatiotemporal dynamics of component processes in human working memory. Electroencephal Clin Neurophysiol 87:128–143
Gevin AS, Doyle JC, Cutillo BA, Schaffer RF, Tannehill RL, Ghannam JH, Gilcrease VA, Yeager CL (1981) Electrical potentials in human brain during cognition: New method reveals dynamic patterns of correlation. Science 213:918–922
Gevins AS, Schaffer RE, Doyle JC, Cutillo BA, Tannehill RL, Bressler SL (1983) Shadows of thought: Rapidly changing, asymmetric, brain potential patterns of a brief visuomotor ask. Science 220:97–99
Gevins As, Morgan NH, Bressler SL, Cutillo Ba, White RM, Illes J, Greer DS, Doyle JC, Heitlin GM (1987) Human neuroelectric patterns predict performance accuracy. Science 235:580–585
Gevins AS, Cutillo BA, Bressler SL, Morgan NH, White RM, Illes J, Greer DS (1989 a) Even-related covariances during a bimanual visuomotor task. Part I: Methods and analysis of stimulus-and response-locked data. Electroencepghal Clin Neurophysiol 74:58–75
Gevins AS, Cutillo BA, Bressler SL, Morgan NH, White RM, Illes J, Greer D (1989 b) Event-related covariances during a bimanual visuomotor task. Part II: Preparation and feedback. Electroencephal. Clin. Neurophysiol 74:147–160
Gevins A, Cutillo B, Desmond JE, Ward M, Bressler S (1994) Subdural grid recordings of distributed neocortical networks involved with somatosensory discrimination. Electroenceph Clin Neurophysiol, in press
Kosslyn S (1988) Aspects of a cognitive science of mental imagery. Science 240: 1621–1626
Le J, Gevins AS (1993) Method to reduce blur distortion from EEG’s using a realistic head model. IEEE Trans Biomed Eng 40:517–528
Livanov MN (1977) Spatial organization of cerebral processes. Wiley, New York
Mars NJ Lopes da Silva FH (1987) EEG analysis methods based on information theory. In: Gevins AS, Remond A (eds) Handbook of electroencephalography and clinical neurophysiology. Vol. 1: Methods of analysis of brain electrical and magnetic signals. Elsevier, Amsterdam, pp 297–307
Mesulam M (1990) Large-scale neurocognitive networks and distributed processing for attention, language, and memory. Ann Neurol 28(5): 597–613
Ojemann GA, Creutzfeldt O, Lettich E, Haglund M (1988) Neuronal activity in human lateral temporal cortex related to short-term verbal memory, naming, and reading. Brain 111:1383–1403
Peterson S, Fox, Posner M, Raichle M (1988) Studies of the processing of single words using averged positron emission tomographic measurements of cerebral flow change. Nature 331:585–589
Posner MI, Keele S (1967) Decay of visual information from a single letter. Science 158:137–139
Posner MI, Petersen SE (1990) The attention system of the human brain. Ann Rev Neurosci 13:25–42
Posner MI, Snyder CR (1975) Facilitation and inhibition in the processing of signals. In: Rabbit PM, Domic S (eds) Attention and performance. V. Academic Press, New York, pp 669–682
Saito Y, Harashima H (1981) Tracking of information within multichannel EEG record-causal analysis in EEG. In: Yamaguchi N, Fujisawa K (eds) Recent advances in EEG and EMG data processing. Elsevier, Amsterdam, pp 133–177
Stuss D, Benson DF (1986) The frontal lobes. Raven Press, New York
Teuber HL (1964) The riddle of frontal lobe function in man. In: Warren J, Akert K (eds) The frontal granular cortex and behavior, McGraw-Hill, New York, pp 410–477
Walter DO (1963) Spectral analysis for electroencephalograms: mathematical determination of neurophysiological relationships from records of limited duration. Exp Neurol 8:155–181
Weiskrantz L (1987) Neuroanatomy of memory and amnesia: A case for multiple memory systems. Human Neurobiol 6:93–105
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1994 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Gevins, A. (1994). Dynamic Cognitive Networks in the Human Brain. In: Buzsáki, G., Llinás, R., Singer, W., Berthoz, A., Christen, Y. (eds) Temporal Coding in the Brain. Research and Perspectives in Neurosciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-85148-3_15
Download citation
DOI: https://doi.org/10.1007/978-3-642-85148-3_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-85150-6
Online ISBN: 978-3-642-85148-3
eBook Packages: Springer Book Archive