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	Provedor de dados Biol. Res. (2) Autor Vogel,Edgar H (2) Philominraj,Andrew S (1) Ponce,Fernando P (1) Quintana,Gonzalo R (1) Palavra-chave Conditioning (1) Eyeblink conditioning (1) Habituation (1) Incremental stimulus intensity effect (1) Inhibition of delay (1) Sensitization (1) Temporal discrimination (1) Timing (1) Mais... Tipo do documento Journal article (2) Ano 2012 (1) 2011 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Habituation of the eyeblink response in humans with stimuli presented in a sequence of incremental intensity Biol. Res. Ponce,Fernando P; Quintana,Gonzalo R; Philominraj,Andrew S; Vogel,Edgar H. In an experiment we examined whether the repeated presentation of tones of gradually increasing intensities produces greater decrement in the eyeblink reflex response in humans than the repetition of tones of constant intensities. Two groups of participants matched for their initial level of response were exposed to 110 tones of 100-ms duration. For the participants in the incremental group, the tones increased from 60- to 90- dB in 3-dB steps, whereas participants in the constant group received the tones at a fixed 90-dB intensity. The results indicated that the level of response in the last block of 10 trials, in which both groups received 90-dB tones, was significantly lower in the incremental group than in the constant group. These findings support the... Tipo: Journal article Palavras-chave: Habituation; Incremental stimulus intensity effect; Sensitization. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000300011 Reinstatement of short-latency responses after asymptotic Pavlovian conditioning training by the presentation of an extraneous stimulus Biol. Res. Vogel,Edgar H. The purpose of this study was to examine whether the progressive disappearance of short-latency conditioned responses, or inhibition of delay, observed in Pavlovian conditioning with long inter-stimulus intervals, could be reverted by the presentation of a novel stimulus. In one experiment, two groups of rabbits received extensive training with a short (250 ms) or a long (1500 ms) tone that overlapped and terminated with a periorbital shock unconditioned stimulus. After training, the presentation of an extraneous stimulus prior to tone onset produced a reinstatement of short latency CRs in the group trained with the long CS, but did not affect CR latency in the group trained with the short CS. This finding is consistent with Pavlov's (1927) view that... Tipo: Journal article Palavras-chave: Inhibition of delay; Conditioning; Temporal discrimination; Eyeblink conditioning; Timing. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000100008 Registros recuperados: 2 Primeira ... 1 ... Última

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