<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1794-4724</journal-id>
<journal-title><![CDATA[Avances en Psicología Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Av. Psicol. Latinoam.]]></abbrev-journal-title>
<issn>1794-4724</issn>
<publisher>
<publisher-name><![CDATA[Universidad del Rosario]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1794-47242018000100129</article-id>
<article-id pub-id-type="doi">10.12804/revistas.urosario.edu.co/apl/a.5119</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Retention and Delayed Extinction of an Instrumental Response in the Toad Rhinella Arenarum Effects of Overtraining]]></article-title>
<article-title xml:lang="es"><![CDATA[Retención y extinción diferida de una respuesta instrumental en el sapo Rhinella Arenarum efectos del sobreentrenamiento]]></article-title>
<article-title xml:lang="pt"><![CDATA[Retenção e extinção diferida de uma resposta instrumental no sapo Rhinella arenarum efeitos do overtraining]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Puddington]]></surname>
<given-names><![CDATA[Martín M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Papini]]></surname>
<given-names><![CDATA[Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muzio]]></surname>
<given-names><![CDATA[Rubén N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Buenos Aires  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Texas Christian University  ]]></institution>
<addr-line><![CDATA[ Texas]]></addr-line>
<country>USA</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>36</volume>
<numero>1</numero>
<fpage>129</fpage>
<lpage>138</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S1794-47242018000100129&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S1794-47242018000100129&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S1794-47242018000100129&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Amphibians and mammals share common basic mechanisms for associative learning. However, it has been observed that some reinforcement paradigms produce opposite results. For example, increasing the number of reinforced trials during acquisition (overtraining) improves extinction in mammals, but it impairs extinction in amphibians. This study evaluates the effects of overtraining on response retention and subsequent delayed extinction after an 8-day retention interval in toads. Two groups of animals were trained in a runway for either 5 or 15 acquisition trials, one trial per day. Acquisition was followed by an 8-day retention interval without training, and then by 8 extinction trials. No differences were observed in the rate of decay during the first trial of extinction or in the rate of delayed extinction. Since it had been previously observed that using the same parameters in the acquisition leads to a faster extinction in the 5-day group, the idea that mechanisms underlying extinction and spontaneous decay differ is considered.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los anfibios y los mamíferos comparten mecanismos básicos comunes para el aprendizaje asociativo. Sin embargo, se observa que algunos paradigmas de refuerzo producen resultados opuestos. Por ejemplo, el aumento del número de ensayos reforzados durante la adquisición (sobreentrenamiento) acelera la extinción en mamíferos, pero la retarda en anfibios. Este estudio evalúa en sapos los efectos del sobreentrenamiento sobre la retención de una respuesta luego de 8 días sin entrenamiento y la subsecuente extinción diferida. Se entrenaron dos grupos de animales en un corredor recto durante 5 o 15 ensayos de adquisición, un ensayo por día. La adquisición fue seguida por un intervalo de retención de 8 días sin entrenamiento, y luego por 8 ensayos de extinción. No se observaron diferencias en la tasa de decaimiento durante el primer ensayo de extinción o en la tasa de extinción diferida. Dado que los mismos parámetros de entrenamiento habían permitido observar un claro efecto de sobreentrenamiento en la extinción inmediata, se propone que los mecanismos que regulan la extinción instrumental son diferentes de los que actúan en el decaimiento espontáneo de la respuesta.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Os anfíbios e os mamíferos compartilham mecanismos básicos comuns para a aprendizagem associativa. No entanto, observa-se que alguns paradigmas de reforço produzem resultados opostos. Por exemplo, o aumento do número de ensaios reforçados durante a aquisição (overtraining) acelera a extinção em mamíferos, mas a retarda em anfíbios. Este estudo avalia em sapos os efeitos do overtraining sobre a retenção de uma resposta após 8 dias sem treinamento e a subsequente extinção diferida. Treinaram-se dois grupos de animais em um corredor reto durante 5 ou 15 ensaios de aquisição, um ensaio por dia. A aquisição foi seguida por um intervalo de retenção de 8 dias sem treinamento, e depois por 8 ensaios de extinção. Não se observaram diferenças na taxa de decaimento durante o primeiro ensaio de extinção ou na taxa de extinção diferida. Devido a que os mesmos parâmetros de treinamento tinham permitido observar um claro efeito de overtraining na extinção imediata, se propõe que os mecanismos que regulam a extinção instrumental são diferentes dos que atuam no decaimento espontâneo da resposta.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Instrumental learning]]></kwd>
<kwd lng="en"><![CDATA[amphibians]]></kwd>
<kwd lng="en"><![CDATA[overtraining]]></kwd>
<kwd lng="en"><![CDATA[extinction]]></kwd>
<kwd lng="es"><![CDATA[Aprendizaje instrumental]]></kwd>
<kwd lng="es"><![CDATA[anfibios]]></kwd>
<kwd lng="es"><![CDATA[sobreentrenamiento]]></kwd>
<kwd lng="es"><![CDATA[extinción]]></kwd>
<kwd lng="pt"><![CDATA[aprendizagem instrumental]]></kwd>
<kwd lng="pt"><![CDATA[anfibios]]></kwd>
<kwd lng="pt"><![CDATA[overtraining]]></kwd>
<kwd lng="pt"><![CDATA[extinção]]></kwd>
</kwd-group>
</article-meta>
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<source><![CDATA[Physiological Zoology]]></source>
<year>1962</year>
<volume>35</volume>
<page-range>218-23</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thorndike]]></surname>
<given-names><![CDATA[E. L]]></given-names>
</name>
</person-group>
<source><![CDATA[Animal intelligence]]></source>
<year>1911</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Macmillan]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
