Amplitude modulation of the contingent negative variation in psychopathy: A systematic review and meta-analysis. Prata, C., Almeida, R., Pasion, R., Almeida, P. R., Barbosa, F., & Ferreira-Santos, F. Neuroscience & Biobehavioral Reviews, 155:105469, December, 2023. Paper doi abstract bibtex The CNV is analyzed in tasks related to EEG studies, often with participants presenting psychopathic personality traits. A systematic search of the literature was conducted, to solve some inconsistencies regarding CNV amplitude modulation by psychopathy. Nine studies (N = 317) were retrieved for analysis. Three meta-analyses were run – CNV, iCNV, tCNV. A qualitative analysis – reporting CNV amplitudes modulated by psychopathy dimensional features – was also featured. Overall effects for CNV and iCNV were not significant. Larger tCNV amplitudes were found in participants reporting higher psychopathy traits, g = −0.58, 95% CI [− 0.94, − 0.22]. These findings were surprising when confronted with previous assumptions in the literature, especially considering that no significant heterogeneity between studies was found. Neither of the studies’ characteristics was a significant moderator. Findings require the need to discuss key differences between adaptive/(mal)adjustment patterns in participants presenting psychopathic traits. Future studies dissociating iCNV and tCNV modulation by psychopathy, especially in community samples and through a dimensional lens, could help to better understand the construct of psychopathy.
@article{prata_amplitude_2023,
title = {Amplitude modulation of the contingent negative variation in psychopathy: {A} systematic review and meta-analysis},
volume = {155},
issn = {0149-7634},
shorttitle = {Amplitude modulation of the contingent negative variation in psychopathy},
url = {https://www.sciencedirect.com/science/article/pii/S0149763423004384},
doi = {10.1016/j.neubiorev.2023.105469},
abstract = {The CNV is analyzed in tasks related to EEG studies, often with participants presenting psychopathic personality traits. A systematic search of the literature was conducted, to solve some inconsistencies regarding CNV amplitude modulation by psychopathy. Nine studies (N = 317) were retrieved for analysis. Three meta-analyses were run – CNV, iCNV, tCNV. A qualitative analysis – reporting CNV amplitudes modulated by psychopathy dimensional features – was also featured. Overall effects for CNV and iCNV were not significant. Larger tCNV amplitudes were found in participants reporting higher psychopathy traits, g = −0.58, 95\% CI [− 0.94, − 0.22]. These findings were surprising when confronted with previous assumptions in the literature, especially considering that no significant heterogeneity between studies was found. Neither of the studies’ characteristics was a significant moderator. Findings require the need to discuss key differences between adaptive/(mal)adjustment patterns in participants presenting psychopathic traits. Future studies dissociating iCNV and tCNV modulation by psychopathy, especially in community samples and through a dimensional lens, could help to better understand the construct of psychopathy.},
urldate = {2023-12-07},
journal = {Neuroscience \& Biobehavioral Reviews},
author = {Prata, Catarina and Almeida, Rita and Pasion, Rita and Almeida, Pedro R. and Barbosa, Fernando and Ferreira-Santos, Fernando},
month = dec,
year = {2023},
keywords = {CNV, EEG, ERP, Meta-analysis, Psychopathy},
pages = {105469},
}
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Nine studies (N = 317) were retrieved for analysis. Three meta-analyses were run – CNV, iCNV, tCNV. A qualitative analysis – reporting CNV amplitudes modulated by psychopathy dimensional features – was also featured. Overall effects for CNV and iCNV were not significant. Larger tCNV amplitudes were found in participants reporting higher psychopathy traits, g = −0.58, 95% CI [− 0.94, − 0.22]. These findings were surprising when confronted with previous assumptions in the literature, especially considering that no significant heterogeneity between studies was found. Neither of the studies’ characteristics was a significant moderator. Findings require the need to discuss key differences between adaptive/(mal)adjustment patterns in participants presenting psychopathic traits. 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