[HTML][HTML] Impairments of facial detection in tobacco use disorder: baseline data and impact of smoking duration
GM Silva, JJ Souto, TP Fernandes… - Brazilian Journal of …, 2020 - SciELO Brasil
Brazilian Journal of Psychiatry, 2020•SciELO Brasil
Objective: Chronic tobacco consumption, classified as tobacco use disorder (TUD), has
been associated with a variety of health problems. Investigations of face processing in TUD
are hampered by lack of evidence. Here, we evaluated facial detection in TUD and
assessed test-retest reliability for a facial detection task. Methods: Participants were
instructed to detect the orientation (either left or right) of a face when it was presented with a
face/non-face pair on the monitor screen, using Bayesian entropy estimation. Bland-Altman …
been associated with a variety of health problems. Investigations of face processing in TUD
are hampered by lack of evidence. Here, we evaluated facial detection in TUD and
assessed test-retest reliability for a facial detection task. Methods: Participants were
instructed to detect the orientation (either left or right) of a face when it was presented with a
face/non-face pair on the monitor screen, using Bayesian entropy estimation. Bland-Altman …
Objective
Chronic tobacco consumption, classified as tobacco use disorder (TUD), has been associated with a variety of health problems. Investigations of face processing in TUD are hampered by lack of evidence. Here, we evaluated facial detection in TUD and assessed test-retest reliability for a facial detection task.
Methods
Participants were instructed to detect the orientation (either left or right) of a face when it was presented with a face/non-face pair on the monitor screen, using Bayesian entropy estimation. Bland-Altman analysis and intraclass correlation coefficients were used to test the reliability of the task. The general linear model and Bayesian statistics were then used to evaluate differences between TUD (n=48) and healthy controls (n=34).
Results
The reliability of the task was high for the 96 stimuli presentations. Slower reaction times (p < 0.001) and lower discrimination index (p < 0.001) were observed in the TUD group than for healthy controls. Mediation analysis indicated direct effects of smoking duration on reaction time (p < 0.001) and discrimination index (p < 0.001).
Conclusions
Overall, we observed high reliability of this task and reduction of facial detection in tobacco use disorder. We conclude our findings are significant for public health initiatives and call for follow-up studies.
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