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Priming effect of figures that represent external objects or human body parts
Oliveira, Felipe Santos de; Fraga Filho, Roberto S; Matsushima, Elton Hiroshi; Gawryszewski, Luiz G.
  • Oliveira, Felipe Santos de; Universidade Federal do Rio Grande do Norte. Centro de Biociências. Departamento de Filosofia. Natal. BR
  • Fraga Filho, Roberto S; Universidade Estácio de Sá. Rio de Janeiro. BR
  • Matsushima, Elton Hiroshi; Universidade Federal Fluminense. Niterói. BR
  • Gawryszewski, Luiz G; Universidade Federal Fluminense. Niterói. BR
Psychol. neurosci. (Impr.) ; 6(1): 7-13, Jan.-June 2013. ilus
Artigo em Inglês | LILACS | ID: lil-687847
ABSTRACT
A visual stimulus (e.g., a letter, word, or object) may have a lasting effect on the processing of subsequent stimuli. The present study verified the priming effect of a figure (i.e., five-petal daisy) on manual reaction time (MRT) to another equal or different five-petal daisy. Two distinct groups were tested. One group was instructed that the five-petal daisy represented a human hand. The other group was instructed that the five-petal daisy represented a flower. The figures in the pairs of stimuli could share or not share some features such as handedness and view. In both groups, after being informed whether the five-petal daisy represented a flower or human hand, an uninformative flower was presented for 200 ms in the center of the screen. After 1000 ms, a second flower was presented in the same location until the observer responded by pressing a left or right switch. The results showed that prior presentation of the five-petal daisy affected MRT only when the figure represented a human hand. Furthermore, an opposite effect of view on MRT was found. The shorter MRT to the back (dorsal) view of the figure that represented a human hand could be attributable to a faster response to the dorsal view of a hand figure made with a prone posture of the participants' hand than to a front (palm) view. The longer MRT to the back view of the figure that represented a flower may be due to a mental rotation of the object along its vertical axis before selecting the correct response because the response was based on the position of the asymmetrical petal in the canonical front view of the daisy.
Assuntos


Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Tempo de Reação / Priming de Repetição / Destreza Motora Idioma: Inglês Revista: Psychol. neurosci. (Impr.) Assunto da revista: Neurologia / Psicologia Ano de publicação: 2013 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade Estácio de Sá/BR / Universidade Federal Fluminense/BR / Universidade Federal do Rio Grande do Norte/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Tempo de Reação / Priming de Repetição / Destreza Motora Idioma: Inglês Revista: Psychol. neurosci. (Impr.) Assunto da revista: Neurologia / Psicologia Ano de publicação: 2013 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade Estácio de Sá/BR / Universidade Federal Fluminense/BR / Universidade Federal do Rio Grande do Norte/BR