dc.creator | Arjona Valladares, Antonio | es |
dc.creator | Gómez González, Carlos María | es |
dc.date.accessioned | 2017-11-30T20:07:29Z | |
dc.date.available | 2017-11-30T20:07:29Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Arjona Valladares, A. y Gómez González, C.M. (2011). Trial-by-trial changes in a priori informational value of external cues and subjective expectancies in human auditory attention. Plos One, 6 (6) | |
dc.identifier.issn | 1932-6203 | es |
dc.identifier.uri | http://hdl.handle.net/11441/67089 | |
dc.description.abstract | Background: Preparatory activity based on a priori probabilities generated in previous trials and subjective expectancies
would produce an attentional bias. However, preparation can be correct (valid) or incorrect (invalid) depending on the
actual target stimulus. The alternation effect refers to the subjective expectancy that a target will not be repeated in the
same position, causing RTs to increase if the target location is repeated. The present experiment, using the Posner’s central
cue paradigm, tries to demonstrate that not only the credibility of the cue, but also the expectancy about the next position
of the target are changedin a trial by trial basis. Sequences of trials were analyzed.
Results: The results indicated an increase in RT benefits when sequences of two and three valid trials occurred. The analysis
of errors indicated an increase in anticipatory behavior which grows as the number of valid trials is increased. On the other
hand, there was also an RT benefit when a trial was preceded by trials in which the position of the target changed with
respect to the current trial (alternation effect). Sequences of two alternations or two repetitions were faster than sequences
of trials in which a pattern of repetition or alternation is broken.
Conclusions: Taken together, these results suggest that in Posner’s central cue paradigm, and with regard to the
anticipatory activity, the credibility of the external cue and of the endogenously anticipated patterns of target location are
constantly updated. The results suggest that Bayesian rules are operating in the generation of anticipatory activity as a
function of the previous trial’s outcome, but also on biases or prior beliefs like the ‘‘gambler fallacy’’. | es |
dc.description.sponsorship | Ministerio de Ciencia e Innovación (España) PSI2010-17523 | es |
dc.description.sponsorship | Junta de Andalucía CTS-153 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Public Library of Science | es |
dc.relation.ispartof | Plos One, 6 (6) | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Trial-by-trial changes in a priori informational value of external cues and subjective expectancies in human auditory attention | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Psicología Experimental | es |
dc.relation.projectID | PSI2010-17523 | es |
dc.relation.projectID | CTS-153 | es |
dc.relation.publisherversion | https://doi.org/10.1371/journal.pone.0021033 | es |
dc.identifier.doi | 10.1371/journal.pone.0021033 | es |
idus.format.extent | 10 p. | es |
dc.journaltitle | Plos One | es |
dc.publication.volumen | 6 | es |
dc.publication.issue | 6 | es |
dc.identifier.sisius | 6419302 | |
dc.contributor.funder | Ministerio de Ciencia e Innovación (MICIN). España | |
dc.contributor.funder | Junta de Andalucía | |