Head movement measurement: An alternative method for posturography studies
| Autor: | Pedro Montoya, Miguel Ángel Muñoz, Jaime Vila, Luis F. Ciria, Norberto Peña, José Garcia Vivas Miranda, Juan Gea |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Movement measurement Emotions Biophysics 050105 experimental psychology 03 medical and health sciences Young Adult 0302 clinical medicine Physical medicine and rehabilitation Center of pressure (terrestrial locomotion) Postural Balance medicine Humans 0501 psychology and cognitive sciences Orthopedics and Sports Medicine Force platform Computer vision International Affective Picture System Alternative methods business.industry 05 social sciences Rehabilitation Posturography Head Movements Head movements Female Artificial intelligence Psychology business 030217 neurology & neurosurgery |
| Zdroj: | Gaitposture. 52 |
| ISSN: | 1879-2219 |
| Popis: | The present study evaluated the measurement of head movements as a valid method for postural emotional studies using the comparison of simultaneous recording of center of pressure (COP) sway as criterion. Thirty female students viewed a set of 12 pleasant, 12 unpleasant and 12 neutral pictures from the International Affective Picture System, repeated twice, using a block presentation procedure while standing on a force platform (AMTI AccuSway). Head movements were recorded using a webcam (©KPC139E) located in the ceiling in line with the force platform and a light-emitting diode (LED) placed on the top of the head. Open source software (CvMob 3.1) was used to process the data. High indices of correlation and coherence between head and COP sway were observed. In addition, pleasant pictures, compared with unpleasant pictures, elicited greater body sway in the anterior-posterior axis, suggesting an approach response to appetitive stimuli. Thus, the measurement of head movement can be an alternative or complementary method to recording COP for studying human postural changes. |
| Databáze: | OpenAIRE |
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