The manual orienting response habituation to repeated tactile stimuli in preterm neonates: Discrimination of stimulus locations and interstimulus intervals

2017 ◽  
Vol 59 (5) ◽  
pp. 590-602 ◽  
Author(s):  
Victoria Dumont ◽  
Jan Bulla ◽  
Nicolas Bessot ◽  
Julie Gonidec ◽  
Marc Zabalia ◽  
...  
1976 ◽  
Vol 42 (3) ◽  
pp. 919-928 ◽  
Author(s):  
Eleanor B. Simon

This 26 factorial experiment investigated the primacy effect in the orienting response. The type of stimuli (tone or “music”), stimulus intensities (loud or soft), length of adaptation period (same, 5 or 30 sec.; or different, 5 min.), interstimulus intervals (5 or 30 sec.), and sex were studied. College students, 32 males and 32 females were randomly assigned to each group. In the same condition, the tone (or music) was soft (or loud) for 5 sec. (or 30 sec.) in adaptation and was then changed alternately without interruption to loud, soft, etc. (or soft, loud, etc.) for 5 sec. (or 30 sec.). The different condition was identical except for the length of the adaptation period in which the stimuli sounded continuously for 5 min. Analyses of the GSR manifestation of the orienting responses indicated: (a) an over-all primacy effect with the auditory stimuli and (b) the primacy effect occurred in the 5-sec.-same but not in the 30-sec.-same condition as predicted.


2002 ◽  
Vol 16 (7) ◽  
pp. 1405-1405
Author(s):  
C.J.P. Oswald ◽  
B.K. Yee ◽  
J.N.P. Rawlins ◽  
D.B. Bannerman ◽  
M. Good ◽  
...  

Pain ◽  
2008 ◽  
Vol 140 (1) ◽  
pp. 58-64 ◽  
Author(s):  
Cláudia Maria Gaspardo ◽  
Juliana Thomazatti Chimello ◽  
Thaís Souza Cugler ◽  
Francisco Eulógio Martinez ◽  
Maria Beatriz Martins Linhares

1971 ◽  
Vol 8 (3) ◽  
pp. 312-318 ◽  
Author(s):  
Timothy G. Sadler ◽  
Roy B. Mefferd ◽  
Robert L. Houck

1985 ◽  
Vol 28 (4) ◽  
pp. 539-547 ◽  
Author(s):  
Michael A. Primus ◽  
Gary Thompson

An operant conditioning discrimination paradigm was evaluated in terms of relationships between response behavior of young children and two stimulus components of the paradigm, the discriminative stimulus (DS) and the reinforcing stimulus (RS). Experiment I measured response performance in normal 1-year-old subjects as a function of differences in intensity and/or complexity among three DSs. Results showed no significant differences in conditioning rate, habituation, or consistency of the conditioned response relative to variable properties of the DS. Experiment II examined response performance of normal 2-year-old children as a function of two modifications in the RS, reinforcement schedule and reinforcement novelty. Subjects reinforced on a variable-ratio schedule of intermittent reinforcement and subjects reinforced on a 100% schedule demonstrated equivalent response habituation and consistency. In the second part of the experiment, subjects receiving novel RSs showed significantly greater response recovery than subjects reinforced with familiar RSs. Comparison of normal 1- and 2-year-old children revealed similar rates of conditioning and response consistency. However, 2-year-olds habituated more rapidly than 1-year-olds.


Author(s):  
Sergio Morra ◽  
Valentina Epidendio

Abstract. Most of the evidence from previous studies on speeded probed recall supported primacy-gradient models of serial order representation. Two experiments investigated the effect of grouping on speeded probed recall. Six-word lists, followed by a number between 1 and 6, were presented for speeded recall of the word in the position indicated by the number. Grouping was manipulated through interstimulus intervals. In both experiments, a significant Position × Grouping interaction was found in RT. It is concluded that the results are not consistent with models of order representation only based on a primacy gradient. Possible alternative representations of serial order are also discussed; a case is made for a holistic order representation.


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