Eric Halgren
- Published in print:
- 2002
- Published Online:
- March 2012
- ISBN:
- 9780198509172
- eISBN:
- 9780191724626
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780198509172.003.0010
- Subject:
- Neuroscience, Sensory and Motor Systems
Various anatomical studies describe the parahippocampal gyrus (pHCg) as a nexus where influences from multiple limbic and neocortical sources can converge, mingle, and return. Corresponding to these ...
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Various anatomical studies describe the parahippocampal gyrus (pHCg) as a nexus where influences from multiple limbic and neocortical sources can converge, mingle, and return. Corresponding to these widespread connections, the pHCg in humans has an electrophysiological profile consistent with cognitive contextual integration. Neuropsychological studies demonstrate a crucial role for the pHCg in recent memory. Indeed, the integrative signal in the pHCg predicts later recall, and is strongly modulated by familiarity during retrieval. This chapter reviews this signal within its spatiotemporal and cognitive contexts, and considers what role it may play in the neural substrate of human memory.Less
Various anatomical studies describe the parahippocampal gyrus (pHCg) as a nexus where influences from multiple limbic and neocortical sources can converge, mingle, and return. Corresponding to these widespread connections, the pHCg in humans has an electrophysiological profile consistent with cognitive contextual integration. Neuropsychological studies demonstrate a crucial role for the pHCg in recent memory. Indeed, the integrative signal in the pHCg predicts later recall, and is strongly modulated by familiarity during retrieval. This chapter reviews this signal within its spatiotemporal and cognitive contexts, and considers what role it may play in the neural substrate of human memory.
Todd C. Handy (ed.)
- Published in print:
- 2009
- Published Online:
- August 2013
- ISBN:
- 9780262013086
- eISBN:
- 9780262258876
- Item type:
- book
- Publisher:
- The MIT Press
- DOI:
- 10.7551/mitpress/9780262013086.001.0001
- Subject:
- Neuroscience, Techniques
Cognitive electrophysiology concerns the study of the brain’s electrical and magnetic responses to both external and internal events. These can be measured using electroencephalograms (EEGs) or ...
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Cognitive electrophysiology concerns the study of the brain’s electrical and magnetic responses to both external and internal events. These can be measured using electroencephalograms (EEGs) or magnetoencephalograms (MEGs). With the advent of functional magnetic resonance imaging, another method of tracking brain signals, the tools and techniques of EEG and MEG data acquisition and analysis have been developing at a similarly rapid pace, and this book offers an overview of key recent advances in cognitive electrophysiology. The chapters highlight the increasing overlap in EEG and MEG analytic techniques, describing several methods applicable to both; discuss recent developments, including reverse correlation methods in visual-evoked potentials and a new approach to topographic mapping in high-density electrode montage; and relate the latest thinking on design aspects of EEG/MEG studies, discussing how to optimize the signal-to-noise ratio as well as statistical developments for maximizing power and accuracy in data analysis using repeated-measure ANOVAS.Less
Cognitive electrophysiology concerns the study of the brain’s electrical and magnetic responses to both external and internal events. These can be measured using electroencephalograms (EEGs) or magnetoencephalograms (MEGs). With the advent of functional magnetic resonance imaging, another method of tracking brain signals, the tools and techniques of EEG and MEG data acquisition and analysis have been developing at a similarly rapid pace, and this book offers an overview of key recent advances in cognitive electrophysiology. The chapters highlight the increasing overlap in EEG and MEG analytic techniques, describing several methods applicable to both; discuss recent developments, including reverse correlation methods in visual-evoked potentials and a new approach to topographic mapping in high-density electrode montage; and relate the latest thinking on design aspects of EEG/MEG studies, discussing how to optimize the signal-to-noise ratio as well as statistical developments for maximizing power and accuracy in data analysis using repeated-measure ANOVAS.
