Abstract
BACKGROUND: Because of cognitive limitations and lower health literacy, many elderly patients have difficulty understanding verbal medical instructions. Automatic detection of facial movements provides a nonintrusive basis for building technological tools supporting confusion detection in healthcare delivery applications on the Internet.
MATERIALS AND METHODS: Twenty-four elderly participants (70-90 years old) were recorded while watching Web-based health instruction videos involving easy and complex medical terminology. Relevant fragments of the participants' facial expressions were rated by 40 medical students for perceived level of confusion and analyzed with automatic software for facial movement recognition.
RESULTS: A computer classification of the automatically detected facial features performed more accurately and with a higher sensitivity than the human observers (automatic detection and classification, 64% accuracy, 0.64 sensitivity; human observers, 41% accuracy, 0.43 sensitivity). A drill-down analysis of cues to confusion indicated the importance of the eye and eyebrow region.
CONCLUSIONS: Confusion caused by misunderstanding of medical terminology is signaled by facial cues that can be automatically detected with currently available facial expression detection technology. The findings are relevant for the development of Web-based services for healthcare consumers.
| Original language | English |
|---|---|
| Pages (from-to) | 514-519 |
| Number of pages | 6 |
| Journal | Telemedicine and e-Health |
| Volume | 21 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2015 |
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Automatic detection of confusion in elderly users of a web-based health instruction video. / Postma-Nilsenová, Marie; Postma, Eric; Tates, Kiek.
In: Telemedicine and e-Health, Vol. 21, No. 6, 06.2015, p. 514-519.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Automatic detection of confusion in elderly users of a web-based health instruction video
AU - Postma-Nilsenová, Marie
AU - Postma, Eric
AU - Tates, Kiek
PY - 2015/6
Y1 - 2015/6
N2 - BACKGROUND: Because of cognitive limitations and lower health literacy, many elderly patients have difficulty understanding verbal medical instructions. Automatic detection of facial movements provides a nonintrusive basis for building technological tools supporting confusion detection in healthcare delivery applications on the Internet.MATERIALS AND METHODS: Twenty-four elderly participants (70-90 years old) were recorded while watching Web-based health instruction videos involving easy and complex medical terminology. Relevant fragments of the participants' facial expressions were rated by 40 medical students for perceived level of confusion and analyzed with automatic software for facial movement recognition.RESULTS: A computer classification of the automatically detected facial features performed more accurately and with a higher sensitivity than the human observers (automatic detection and classification, 64% accuracy, 0.64 sensitivity; human observers, 41% accuracy, 0.43 sensitivity). A drill-down analysis of cues to confusion indicated the importance of the eye and eyebrow region.CONCLUSIONS: Confusion caused by misunderstanding of medical terminology is signaled by facial cues that can be automatically detected with currently available facial expression detection technology. The findings are relevant for the development of Web-based services for healthcare consumers.
AB - BACKGROUND: Because of cognitive limitations and lower health literacy, many elderly patients have difficulty understanding verbal medical instructions. Automatic detection of facial movements provides a nonintrusive basis for building technological tools supporting confusion detection in healthcare delivery applications on the Internet.MATERIALS AND METHODS: Twenty-four elderly participants (70-90 years old) were recorded while watching Web-based health instruction videos involving easy and complex medical terminology. Relevant fragments of the participants' facial expressions were rated by 40 medical students for perceived level of confusion and analyzed with automatic software for facial movement recognition.RESULTS: A computer classification of the automatically detected facial features performed more accurately and with a higher sensitivity than the human observers (automatic detection and classification, 64% accuracy, 0.64 sensitivity; human observers, 41% accuracy, 0.43 sensitivity). A drill-down analysis of cues to confusion indicated the importance of the eye and eyebrow region.CONCLUSIONS: Confusion caused by misunderstanding of medical terminology is signaled by facial cues that can be automatically detected with currently available facial expression detection technology. The findings are relevant for the development of Web-based services for healthcare consumers.
U2 - 10.1089/tmj.2014.0061
DO - 10.1089/tmj.2014.0061
M3 - Article
C2 - 25844904
VL - 21
SP - 514
EP - 519
JO - Telemedicine and e-Health
JF - Telemedicine and e-Health
SN - 1530-5627
IS - 6
ER -