In the Eye of the Beholder: Changes in Perceived Emotion Expression after Smile Reanimation.

Abstract:

BACKGROUND:Tools to quantify layperson assessments of facial palsy are lacking. In this study, artificial intelligence was applied to develop a proxy for layperson assessments, and compare sensitivity to existing outcome measures. METHODS:Artificially intelligent emotion detection software was used to develop the emotionality quotient. The emotionality quotient was defined as the percentage probability of perceived joy over the percentage probability of perceived negative emotions during smiling, as predicted by the software. The emotionality quotient was used to analyze the emotionality of voluntary smiles of normal subjects and unilateral facial palsy patients before and after smile reanimation. The emotionality quotient was compared to oral commissure excursion and layperson assessments of facial palsy patients. RESULTS:In voluntary smiles of 10 normal subjects, 100 percent joy and no negative emotion was detected (interquartile ranges, 0/1). Median preoperative emotionality quotient of 30 facial palsy patients was 15/-60 (interquartile range, 73/62). Postoperatively, median emotionality quotient was 84/0 (interquartile range, 28/5). In 134 smile reanimation patients, no correlation was found between postoperative oral commissure excursion and emotionality quotient score. However, in 61 preoperative patients, a moderate correlation was found between layperson-assessed disfigurement and negative emotion perception (correlation coefficient, 0.516; p < 0.001). CONCLUSIONS:Computer vision artificial intelligence software detected less joy and more negative emotion in smiles of facial palsy patients compared with normal subjects. Following smile reanimation, significantly more joy and less negative emotion were detected. The emotionality quotient was correlated with layperson assessments. The simplicity, sensitivity, and objectivity of the emotionality quotient render it an attractive tool to serve as a potential proxy for layperson assessment, an ideal outcome measure in facial palsy. CLINICAL QUESTION/LEVEL OF EVIDENCE:Diagnostic, IV.

journal_name

Plast Reconstr Surg

authors

Dusseldorp JR,Guarin DL,van Veen MM,Jowett N,Hadlock TA

doi

10.1097/PRS.0000000000005865

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

457-471

issue

2

eissn

0032-1052

issn

1529-4242

pii

00006534-201908000-00036

journal_volume

144

pub_type

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