Time-series analysis for rapid event-related skin conductance responses.
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This work demonstrates, across three experiments, that the method has face validity in analysing reactions to a loud white noise and emotional pictures, can be generalised to paradigms where the shape of the response function is unknown and can account for parametric trial-by-trial effects.Citations
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A continuous measure of phasic electrodermal activity.
TL;DR: A deconvolution approach is proposed, which separates SC data into continuous signals of tonic and phasic activity, which shows a zero baseline, and overlapping SCRs are represented by predominantly distinct, compact impulses showing an average duration of less than 2 s.
Journal ArticleDOI
Computations of uncertainty mediate acute stress responses in humans
Archy O. de Berker,Archy O. de Berker,Robb B. Rutledge,Robb B. Rutledge,Christoph Mathys,Christoph Mathys,Louise Marshall,Gemma F. Cross,Raymond J. Dolan,Raymond J. Dolan,Sven Bestmann +10 more
TL;DR: It is demonstrated that subjective estimates of uncertainty predict the dynamics of subjective and physiological stress responses, and the finding that stress responses are tuned to environmental uncertainty provides new insight into their generation and likely adaptive function.
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How humans integrate the prospects of pain and reward during choice
TL;DR: It is concluded that ventral anterior cingulate cortex and ventral striatum subserve integration of action costs and benefits in humans, a finding that suggests a cross-species similarity in neural substrates that implement this function and illuminates mechanisms that underlie altered decision making under aversive conditions.
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Using Deep Convolutional Neural Network for Emotion Detection on a Physiological Signals Dataset (AMIGOS)
Luz Santamaria-Granados,Mario Munoz-Organero,Gustavo Ramirez-Gonzalez,Enas Abdulhay,N. Arunkumar +4 more
TL;DR: The experimental results on the AMIGOS dataset show that the method proposed in this paper achieves a better precision of the classification of the emotional states, in comparison with the originally obtained by the authors of this dataset.
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Modelling event-related skin conductance responses
TL;DR: It is indicated that a large component of the variance in SCRs can be explained by one response function per individual, and there was no evidence for nonlinear interactions among evoked responses that depended on their temporal overlap.
References
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Journal Article
International affective picture system (IAPS) : affective ratings of pictures and instruction manual
Book
Statistical Parametric Mapping: The Analysis of Functional Brain Images
TL;DR: In an age where the amount of data collected from brain imaging is increasing constantly, it is of critical importance to analyse those data within an accepted framework to ensure proper integration and comparison of the information collected as discussed by the authors.
Journal ArticleDOI
Analysis of functional MRI time‐series
TL;DR: A method for detecting significant and regionally specific correlations between sensory input and the brain's physiological response, as measured with functional magnetic resonance imaging (MRI), is presented in this paper.
Journal ArticleDOI
Nonlinear event-related responses in fMRI
TL;DR: The theory and techniques upon which conclusions based on nonlinear system identification based on the use of Volterra series were based are described and the implications for experimental design and analysis are discussed.
Journal ArticleDOI
Decomposing skin conductance into tonic and phasic components
Chong L. Lim,Chris Rennie,Robert J. Barry,H. Bahramali,Ilario Lazzaro,Barry R. Manor,Evian Gordon +6 more
TL;DR: A quantitative method of resolving the problem of confound measurement of each discrete phasic SCR as well as the tonic skin conductance level (SCL) using a modelling technique that takes advantage of the stereotyped nature of the within-subject SCR waveform is reported.