Defining pleasant touch stimuli: a systematic review and meta-analysis.
Psychol Res
; 85(1): 20-35, 2021 Feb.
Article
en En
| MEDLINE
| ID: mdl-31630220
ABSTRACT
Pleasantness is generally overlooked when investigating tactile functions. Addition of a pleasant stimulus could allow for a more complete characterisation of somatosensory function. The aims of this review were to systematically assess the methodologies used to elicit a pleasant sensation, measured via psychophysical techniques, and to perform a meta-analysis to measure the effect of brush stroking velocity on touch pleasantness. Eighteen studies were included in the systematic review, with five studies included in the meta-analysis. The review found that factors such as texture, velocity, force, and the duration of continuous stroking influence tactile evoked pleasantness. Specifically, using a soft material and stroking at a velocity of 3 cm/s with light force is generally considered as particularly pleasant. The meta-analysis showed that a brush stroking velocity of 30 cm/s was rated as less pleasant than 3 cm/s, on the forearm. The present study collates the factors that are most likely to provide a stimulus to elicit a pleasant sensation. The results should be important for studies requiring a well-defined pleasant stimulus including neurosensory assessment protocols, allowing for a more complete multimodality assessment of somatosensory function.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Estimulación Física
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Psicofísica
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Tacto
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Emociones
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Percepción del Tacto
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Placer
Tipo de estudio:
Systematic_reviews
Límite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Psychol Res
Año:
2021
Tipo del documento:
Article
País de afiliación:
Dinamarca