Haptic subitizing across the fingers
Identifieur interne : 000468 ( PascalFrancis/Corpus ); précédent : 000467; suivant : 000469Haptic subitizing across the fingers
Auteurs : Myrthe A. Plaisier ; Jeroen B. J. SmeetsSource :
- Attention, perception & psychophysics [ 1943-3921 ] ; 2011.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Numerosity judgments of small sets of items (< 3) are generally fast and errorfree, while response times and error rates increase rapidly for larger numbers of items. We investigated an efficient process used for judging small numbers of items (known as subitizing) in active touch. We hypothesized that this efficient process for numerosity judgment might be related to stimulus properties that allow for efficient (parallel) search. Our results showed that subitizing was not possible forraised lines among flat surfaces, whereas this type of stimulus could be detected in parallel over the fingers. However, subitizing was possible when the number of fingers touching a surface had to be judged while the other fingers were lowered in mid-air. In the latter case, the lack of tactile input is essential, since subitizing was not enabled by differences in proprioceptive information from the fingers. Our results show that subitizing using haptic information from the fingers is possible only whensome fingers receive tactile information while other fingers do not.
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NO : | PASCAL 11-0333532 INIST |
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ET : | Haptic subitizing across the fingers |
AU : | PLAISIER (Myrthe A.); SMEETS (Jeroen B. J.) |
AF : | Faculty of Human Movement Sciences, VU University, Van der Boechorststraat 9/1081 BT Amsterdam/Pays-Bas (1 aut., 2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Attention, perception & psychophysics; ISSN 1943-3921; Etats-Unis; Da. 2011; Vol. 73; No. 5; Pp. 1579-1585; Bibl. 1/2 p. |
LA : | Anglais |
EA : | Numerosity judgments of small sets of items (< 3) are generally fast and errorfree, while response times and error rates increase rapidly for larger numbers of items. We investigated an efficient process used for judging small numbers of items (known as subitizing) in active touch. We hypothesized that this efficient process for numerosity judgment might be related to stimulus properties that allow for efficient (parallel) search. Our results showed that subitizing was not possible forraised lines among flat surfaces, whereas this type of stimulus could be detected in parallel over the fingers. However, subitizing was possible when the number of fingers touching a surface had to be judged while the other fingers were lowered in mid-air. In the latter case, the lack of tactile input is essential, since subitizing was not enabled by differences in proprioceptive information from the fingers. Our results show that subitizing using haptic information from the fingers is possible only whensome fingers receive tactile information while other fingers do not. |
CC : | 002A26E05 |
FD : | Sensibilité tactile; Comptage; Doigt; Jugement; Etude expérimentale; Homme |
FG : | Perception; Cognition |
ED : | Tactile sensitivity; Counting; Finger; Judgment; Experimental study; Human |
EG : | Perception; Cognition |
SD : | Sensibilidad tactil; Contaje; Dedo; Juicio; Estudio experimental; Hombre |
LO : | INIST-14257.354000190456660220 |
ID : | 11-0333532 |
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Pascal:11-0333532Le document en format XML
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<ET>Haptic subitizing across the fingers</ET>
<AU>PLAISIER (Myrthe A.); SMEETS (Jeroen B. J.)</AU>
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<EA>Numerosity judgments of small sets of items (< 3) are generally fast and errorfree, while response times and error rates increase rapidly for larger numbers of items. We investigated an efficient process used for judging small numbers of items (known as subitizing) in active touch. We hypothesized that this efficient process for numerosity judgment might be related to stimulus properties that allow for efficient (parallel) search. Our results showed that subitizing was not possible forraised lines among flat surfaces, whereas this type of stimulus could be detected in parallel over the fingers. However, subitizing was possible when the number of fingers touching a surface had to be judged while the other fingers were lowered in mid-air. In the latter case, the lack of tactile input is essential, since subitizing was not enabled by differences in proprioceptive information from the fingers. Our results show that subitizing using haptic information from the fingers is possible only whensome fingers receive tactile information while other fingers do not.</EA>
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