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Visual hemifield differences in contextual cueing performance

dc.contributor.advisorRosero Pahi, Mario Albertospa
dc.contributor.authorHerrera Chaves, Danielaspa
dc.contributor.authorMateus Vélez, Sandraspa
dc.date.accessioned2020-06-26T16:15:06Z
dc.date.available2020-06-26T16:15:06Z
dc.date.issued2017-05-17
dc.identifier.urihttp://hdl.handle.net/20.500.12749/364
dc.description.abstractLas escenas visuales son complejas y sobrecargadas de información pero, aún así, contienen elementos invariables que se mantienen a través del tiempo. El contextual cueing paradigm demuestra la existencia de una forma implícita de memoria para el contexto visual que guía la atención a los aspectos más relevantes de una escena, optimizando así la búsqueda visual. Varios estudios han encontrado un sesgo hacia el hemisferio derecho en la atención visuoespacial, pero los resultados han sido menos concluyentes en lo referente a las diferencias hemisféricas en el contextual cueing. Debido a que la atención visuoespacial es un mecanismo crucial en el contextual cuieng task, hipotetizamos que el desempeño en esta tarea sería superior cuando los estímulos fueran presentados en el hemicampo izquierdo. Siendo así, comparamos el desempeño en la tarea dependiendo de la ubicación visuoespacial de los estímulos (hemicampo visual izquierdo o derecho) y no encontramos diferencias significativas entre hemicampos. Estos resultados pueden deberse a diferencias individuales entre sujetos y a que en el contextual cueing participan la atención dirigida por objetivos y la atención dirigida por estímulos, las cuales tienen diferentes patrones de lateralización en el cerebro.spa
dc.description.tableofcontentsIntroduction ................................................ 8 Problem statement .......................................... 12 Research question .......................................... 13 Hypothesis ................................................. 13 Null Hypothesis ............................................. 14 Justification .............................................. 14 Objectives ................................................. 15 General objective ........................................... 15 Specific objectives ......................................... 15 Background of the study .................................... 16 Theoretical Framework ...................................... 21 The visual pathway .......................................... 21 The dorsal and ventral attentional networks ................. 23 Hemispheric asymmetry in the human brain .................... 25 Hemispheric asymmetries in visuospatial attention. ........ 27 Implicit memory and implicit learning ....................... 32 Statistical learning. ..................................... 36 Contextual cueing and memory-guided attention ............... 39 Variables .................................................. 42 Independent variables ....................................... 42 Dependent variables ......................................... 43 Method ..................................................... 43 Design and Type of Study .................................... 43 Subjects .................................................... 44 Task ........................................................ 44 Procedure ................................................... 46 Data Analysis ............................................... 47 Results .................................................... 48 Discussion ................................................. 49 Conclusion ................................................. 53 References ................................................. 54spa
dc.format.mimetypeapplication/pdfspa
dc.language.isospaspa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/*
dc.titleVisual hemifield differences in contextual cueing performancespa
dc.title.translatedVisual hemifield differences in contextual cueing performanceeng
dc.degree.namePsicólogospa
dc.coverageBucaramanga (Colombia)spa
dc.publisher.grantorUniversidad Autónoma de Bucaramanga UNABspa
dc.rights.localAbierto (Texto Completo)spa
dc.publisher.facultyFacultad Ciencias de la Saludspa
dc.publisher.programPregrado Psicologíaspa
dc.description.degreelevelPregradospa
dc.type.driverinfo:eu-repo/semantics/bachelorThesis
dc.type.localTrabajo de Gradospa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1f
dc.subject.keywordsMemoryeng
dc.subject.keywordsVisual perceptioneng
dc.subject.keywordsPsychologyeng
dc.subject.keywordsResearcheng
dc.subject.keywordsVisual sceneseng
dc.subject.keywordsVisuospatial attentioneng
dc.identifier.instnameinstname:Universidad Autónoma de Bucaramanga - UNABspa
dc.identifier.reponamereponame:Repositorio Institucional UNABspa
dc.type.hasversioninfo:eu-repo/semantics/acceptedVersion
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.accessrightshttp://purl.org/coar/access_right/c_abf2spa
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dc.contributor.cvlacRosero Pahi, Mario Alberto [0001356760]*
dc.contributor.googlescholarRosero Pahi, Mario Alberto [lmqwzwUAAAAJ&hl=en]*
dc.contributor.orcidRosero Pahi, Mario Alberto [0000-0002-9546-4064]*
dc.contributor.researchgateRosero Pahi, Mario Alberto [Mario-Alberto-Rosero-Pahi]*
dc.subject.lembMemoriaspa
dc.subject.lembPercepción visualspa
dc.subject.lembPsicologíaspa
dc.subject.lembInvestigacionesspa
dc.description.abstractenglishVisual scenes are complex and overloaded by information, yet they contain invariants that are stable over time. The contextual cueing paradigm demonstrates the existence of an implicit form of memory for visual context that guides attention to relevant aspects of a scene, thus optimizing visual search. Studies have found a right-hemispheric bias for visuospatial attention, but results have been less conclusive regarding hemispheric differences in contextual cueing. Since visuospatial attention is a crucial mechanism in contextual cueing, we hypothesized that performance on the task would be enhanced when stimuli were presented in the left visual hemifield. We compared performance depending on the visuospatial location of the stimuli (left or right visual hemifield) and did not find significant differences between hemifields. Such results may be due to individual variation and the participation of both goal-directed and stimuli-driven attentional mechanisms in contextual cueing, which show different patterns of lateralization in the brain.eng
dc.subject.proposalEscenas visualesspa
dc.subject.proposalAtención visuoespacialspa
dc.type.redcolhttp://purl.org/redcol/resource_type/TP
dc.rights.creativecommonsAtribución-NoComercial-SinDerivadas 2.5 Colombia*
dc.contributor.researchgroupGrupo de Investigación en Violencia, Lenguaje y Estudios Culturalesspa
dc.coverage.campusUNAB Campus Bucaramangaspa
dc.description.learningmodalityModalidad Presencialspa


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