title: No evidence for a negative prediction error signal in peripheral indicators of sympathetic arousal.
abstract: Recently, the existence of a prediction error signal to the omission of expected punishment in skin conductance recordings has been posited. Here, we re-analyse an existing dataset on aversive delay conditioning and find no evidence for such a signal. We discuss methodical reasons for this discrepancy and technical implications for estimation of central processes from skin conductance data.
authors.affiliation: Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, London WC1N 3BG, UK. d.bach@fil.ion.ucl.ac.uk
authors.forename: Dominik R
authors.initials: DR
authors.lastname: Bach
authors.forename: Karl J
authors.initials: KJ
authors.lastname: Friston
mesh_terms: D059031:Anticipation, Psychological / Q000502:physiology; D001143:Arousal / Q000502:physiology*; D004568:Electrodiagnosis / Q000379:methods*; D019317:Evidence-Based Medicine; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D006801:Humans; D010992:Plethysmography, Impedance / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012867:Skin / Q000294:innervation*; D012879:Skin Physiological Phenomena; D013564:Sympathetic Nervous System / Q000502:physiology*