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Multiresolution Karhunen Loéve analysis of galvanic skin response for psycho-physiological studies

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Abstract

This paper proposes the use of Multiresolution Karhunen Loéve (MR-KL) analysis to analyse Galvanic Skin Response (GSR) Signals. GSR signal, which is considered the golden standard in peripheral neuro-physiological and psycho-physiological studies, can be represented by two functions representing either the large and small scale variabilities of the series. The large scale variability, related to the tonic component, is modelled by smoothing splines while the small scale variability, related to the phasic component, is modelled by a MR-KL expansion. The recognition of these two components in a real data set is mandatory in neuro-psycho-physiology and we demonstrate the efficacy of the proposed methodology by analysing a pilot experiment on a group of 13 subjects.

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Authors and Affiliations

  1. Department of Quantitative Methods and Economic Theory, University G. d’Annunzio, Chieti-Pescara, Italy

    Lara Fontanella & Luigi Ippoliti

  2. DMQTE, Facoltá di Scienze Manageriali, Viale Pindaro 42, 65127, Pescara, Italy

    Luigi Ippoliti

  3. ITAB and Department of Neurosciences and Imaging, University G. d’Annunzio, Chieti-Pescara, Italy

    Arcangelo Merla

Authors
  1. Lara Fontanella
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  2. Luigi Ippoliti
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  3. Arcangelo Merla
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Corresponding author

Correspondence to Luigi Ippoliti.

Additional information

ITAB: Institute of Advanced Biomedical Technologies, Foundation University G. d’Annunzio.

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Fontanella, L., Ippoliti, L. & Merla, A. Multiresolution Karhunen Loéve analysis of galvanic skin response for psycho-physiological studies. Metrika 75, 287–309 (2012). https://doi.org/10.1007/s00184-010-0327-3

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  • DOI: https://doi.org/10.1007/s00184-010-0327-3

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