Magnetoencephalographic evidence for common sources of long latency fields to rare target and rare novel visual stimuli

Luis F.H. Basile, Robert L. Rogers, Panagiotis G. Simos, Andrew Papanicolaou

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study used magnetoencephalography to examine the possibility that different generators account for the long-latency event-related potential (P300), evoked by rare target and by rare non-target, novel visual stimuli, in a visual oddball counting task performed by seven subjects. As expected, P300 peak latency was longer in response to rare targets compared to novel, non-target stimuli. Two main source regions were found for the Target- as well as for the Novel-P300, one in the temporal and one in the occipital lobe. Centers of neural activity were observed in the vicinity of the superior temporal sulcus, in the hippocampal formation and parahippocampal gyrus and in the occipital extrastriate cortex. It appears that the brain structures which contributed to the generation of the P300 response to both the target and the novel visual stimuli overlapped to a great extend.

Original languageEnglish (US)
Pages (from-to)123-137
Number of pages15
JournalInternational Journal of Psychophysiology
Volume25
Issue number2
DOIs
StatePublished - Feb 1 1997

Fingerprint

Occipital Lobe
Parahippocampal Gyrus
P300 Event-Related Potentials
Magnetoencephalography
Visual Cortex
Temporal Lobe
Hippocampus
Brain

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Physiology (medical)

Cite this

Magnetoencephalographic evidence for common sources of long latency fields to rare target and rare novel visual stimuli. / Basile, Luis F.H.; Rogers, Robert L.; Simos, Panagiotis G.; Papanicolaou, Andrew.

In: International Journal of Psychophysiology, Vol. 25, No. 2, 01.02.1997, p. 123-137.

Research output: Contribution to journalArticle

Basile, Luis F.H. ; Rogers, Robert L. ; Simos, Panagiotis G. ; Papanicolaou, Andrew. / Magnetoencephalographic evidence for common sources of long latency fields to rare target and rare novel visual stimuli. In: International Journal of Psychophysiology. 1997 ; Vol. 25, No. 2. pp. 123-137.
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