2020
DOI: 10.1101/2020.09.24.310383
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Decoding representations of discriminatory and hedonic information during appetitive and aversive touch

Abstract: In the somatosensory system, hedonic information is coded by mechanoreceptors at the point of contact. Pleasure and pain signals travel along peripheral nerve pathways distinct from those for discriminative touch. Yet it remains unknown whether the central nervous system represents tactile hedonic information in sensory cortices as another dimension of exteroceptive information, similar to discriminative touch signals, or if tactile hedonic information is instantiated in regions mediating internal interoceptiv… Show more

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Cited by 2 publications
(9 citation statements)
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References 93 publications
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“…Bayesian Information Criterion (BIC) was used to find the best combination of POIs for each ROI. Multiple regression was used to obtain beta coefficients for each POI (Kryklywy, Ehlers, et al, 2021). D. RSA was performed separately on early, mid, and late CS- only trials to examine reactivation of US information over the course of conditioning.…”
Section: Resultsmentioning
confidence: 99%
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“…Bayesian Information Criterion (BIC) was used to find the best combination of POIs for each ROI. Multiple regression was used to obtain beta coefficients for each POI (Kryklywy, Ehlers, et al, 2021). D. RSA was performed separately on early, mid, and late CS- only trials to examine reactivation of US information over the course of conditioning.…”
Section: Resultsmentioning
confidence: 99%
“…Representational information in BOLD responses to the US was identified by using Bayesian Information Criterion (BIC) to fit predefined POIs – idealized similarity matrices modelling specific information content (e.g., the valence of the touch stimulus) – to the observed US similarity data (Figure 1c). The representation of appetitive and aversive US, independent from CS- only trials, are focus of a different study (Kryklywy, Ehlers, et al, 2021).…”
Section: Resultsmentioning
confidence: 99%
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