An Exploration of the Titrating-Delay Match-to-Sample Procedure with Pigeons

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The delayed matching‐to‐sample (DMTS) procedure involves the insertion of a delay between the offset of a sample stimulus and the onset of an array of comparison stimuli; one of which is designated as the “correct” match for the sample on each trial. The procedure has served as the base preparation in which the effects of environmental variables on short‐term remembering and is, in many ways, responsible for a refined understanding of the phenomenon. Despite its utility, however, there are a few problems with the DMTS procedure – first, the procedure doesn’t adjust for individual differences and second, the conventional dependent ... continued below

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Friedel, Jonathan E. December 2011.

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  • Fish, Joshua Stephen Andrus

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The delayed matching‐to‐sample (DMTS) procedure involves the insertion of a delay between the offset of a sample stimulus and the onset of an array of comparison stimuli; one of which is designated as the “correct” match for the sample on each trial. The procedure has served as the base preparation in which the effects of environmental variables on short‐term remembering and is, in many ways, responsible for a refined understanding of the phenomenon. Despite its utility, however, there are a few problems with the DMTS procedure – first, the procedure doesn’t adjust for individual differences and second, the conventional dependent measure, percent of correct trials, is not as sensitive as one might like. The titrating-delay matching to sample (TDMTS) procedure is a variant of the DMTS procedure in which the delays between sample and comparison are adjusted as a function of the subject’s performance. Stable measures of adjusted delay are not only sensitive measures of the performance of interest but they are also automatically tuned to differences across individuals. The study reported here continues our efforts to understand the dynamics of the TDMTS procedure so that it can be used to ask important questions related to short‐term remembering.

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  • December 2011

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  • Oct. 2, 2012, 4:18 p.m.

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  • Jan. 14, 2014, 4:19 p.m.

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Friedel, Jonathan E. An Exploration of the Titrating-Delay Match-to-Sample Procedure with Pigeons, thesis, December 2011; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc103316/: accessed January 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .