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[PMID]:28609416
[Au] Autor:Vinuela-Navarro V; Erichsen JT; Williams C; Woodhouse JM
[Ad] Endereço:*PhD †PhD, FRCOphth School of Optometry and Vision Sciences, Cardiff University, Cardiff, Wales, United Kingdom (VV-N, JTE, JMW); and School of Social and Community Medicine, University of Bristol, Clifton, Bristol, United Kingdom (CW).
[Ti] Título:Effect of Stimulus Type and Motion on Smooth Pursuit in Adults and Children.
[So] Source:Optom Vis Sci;94(7):760-769, 2017 Jul.
[Is] ISSN:1538-9235
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:PURPOSE: This study presents a two-degree customized animated stimulus developed to evaluate smooth pursuit in children and investigates the effect of its predetermined characteristics (stimulus type and size) in an adult population. Then, the animated stimulus is used to evaluate the impact of different pursuit motion paradigms in children. METHODS: To study the effect of animating a stimulus, eye movement recordings were obtained from 20 young adults while the customized animated stimulus and a standard dot stimulus were presented moving horizontally at a constant velocity. To study the effect of using a larger stimulus size, eye movement recordings were obtained from 10 young adults while presenting a standard dot stimulus of different size (1° and 2°) moving horizontally at a constant velocity. Finally, eye movement recordings were obtained from 12 children while the 2° customized animated stimulus was presented after three different smooth pursuit motion paradigms. Performance parameters, including gains and number of saccades, were calculated for each stimulus condition. RESULTS: The animated stimulus produced in young adults significantly higher velocity gain (mean: 0.93; 95% CI: 0.90-0.96; P = .014), position gain (0.93; 0.85-1; P = .025), proportion of smooth pursuit (0.94; 0.91-0.96, P = .002), and fewer saccades (5.30; 3.64-6.96, P = .008) than a standard dot (velocity gain: 0.87; 0.82-0.92; position gain: 0.82; 0.72-0.92; proportion smooth pursuit: 0.87; 0.83-0.90; number of saccades: 7.75; 5.30-10.46). In contrast, changing the size of a standard dot stimulus from 1° to 2° did not have an effect on smooth pursuit in young adults (P > .05). Finally, smooth pursuit performance did not significantly differ in children for the different motion paradigms when using the animated stimulus (P > .05). CONCLUSIONS: Attention-grabbing and more dynamic stimuli, such as the developed animated stimulus, might potentially be useful for eye movement research. Finally, with such stimuli, children perform equally well irrespective of the motion paradigm used.
[Mh] Termos MeSH primário: Movimentos Oculares/fisiologia
Percepção de Movimento/fisiologia
Acompanhamento Ocular Uniforme/fisiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Criança
Pré-Escolar
Feminino
Generalização do Estímulo
Seres Humanos
Masculino
Movimentos Sacádicos
Adulto Jovem
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170904
[Lr] Data última revisão:
170904
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170614
[St] Status:MEDLINE
[do] DOI:10.1097/OPX.0000000000001090


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[PMID]:27794690
[Au] Autor:Kaczkurkin AN; Burton PC; Chazin SM; Manbeck AB; Espensen-Sturges T; Cooper SE; Sponheim SR; Lissek S
[Ad] Endereço:From the Department of Psychology, the Department of Psychiatry, and the Office of the College of Liberal Arts Associate Dean for Research, University of Minnesota, Minneapolis; the Department of Psychiatry, University of Pennsylvania, Philadelphia; and the Minneapolis VA Health Care System, Minneap
[Ti] Título:Neural Substrates of Overgeneralized Conditioned Fear in PTSD.
[So] Source:Am J Psychiatry;174(2):125-134, 2017 Feb 01.
[Is] ISSN:1535-7228
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Heightened generalization of fear from an aversively reinforced conditioned stimulus (CS+, a conditioned danger cue) to resembling stimuli is widely accepted as a pathogenic marker of posttraumatic stress disorder (PTSD). Indeed, a distress response to benign stimuli that "resemble" aspects of the trauma is a central feature of the disorder. To date, the link between overgeneralization of conditioned fear and PTSD derives largely from clinical observations, with limited empirical work on the subject. This represents the first effort to examine behavioral and brain indices of generalized conditioned fear in PTSD using systematic methods developed in animals known as generalization gradients: the gradual decline in conditioned responding as the presented stimulus gradually differentiates from CS+. METHOD: Gradients of conditioned fear generalization were assessed using functional MRI and behavioral measures in U.S. combat veterans who served in Iraq or Afghanistan and had PTSD (N=26), subthreshold PTSD (N=19), or no PTSD (referred to as trauma control subjects) (N=17). Presented stimuli included rings of graded size, with extreme sizes serving as CS+ (paired with shock) and as a nonreinforced conditioned stimulus (CS-, a conditioned safety cue), and with intermediate sizes forming a continuum of similarity between CS+ and CS-. Generalization gradients were assessed as response slopes from CS+, through intermediate ring sizes, to CS-, with less steep slopes indicative of stronger generalization. RESULTS: Relative to trauma control subjects, PTSD patients showed stronger conditioned generalization, as evidenced by less steep generalization gradients in both behavioral risk ratings and brain responses in the left and right anterior insula, left ventral hippocampus, dorsolateral and dorsomedial prefrontal cortex, and caudate nucleus. Severity of PTSD symptoms across the three study groups was positively correlated with levels of generalization at two such loci: the right anterior insula and left ventral hippocampus. CONCLUSIONS: The results point to evidence of brain-based markers of overgeneralized fear conditioning related to PTSD. These findings provide further understanding of a central yet understudied symptom of trauma-related psychopathology.
[Mh] Termos MeSH primário: Distúrbios de Guerra/fisiopatologia
Condicionamento Clássico/fisiologia
Medo/fisiologia
Generalização do Estímulo/fisiologia
Transtornos de Estresse Pós-Traumáticos/fisiopatologia
Veteranos/psicologia
[Mh] Termos MeSH secundário: Adulto
Campanha Afegã de 2001-
Nível de Alerta/fisiologia
Encéfalo/fisiopatologia
Mapeamento Encefálico
Distúrbios de Guerra/diagnóstico
Distúrbios de Guerra/psicologia
Dominância Cerebral/fisiologia
Seres Humanos
Guerra do Iraque 2003-2011
Imagem por Ressonância Magnética
Masculino
Transtornos de Estresse Pós-Traumáticos/diagnóstico
Transtornos de Estresse Pós-Traumáticos/psicologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170501
[Lr] Data última revisão:
170501
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:161101
[St] Status:MEDLINE
[do] DOI:10.1176/appi.ajp.2016.15121549


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[PMID]:27425659
[Au] Autor:Bonardi C; Robinson J; Jennings D
[Ad] Endereço:School of Psychology, University of Nottingham, United Kingdom. Electronic address: Charlotte.Bonardi@nottingham.ac.uk.
[Ti] Título:Can existing associative principles explain occasion setting? Some old ideas and some new data.
[So] Source:Behav Processes;137:5-18, 2017 Apr.
[Is] ISSN:1872-8308
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Since occasion setting was identified as a type of learning independent of 'simple' associative processes, a great deal of research has explored how occasion setters are established and operate. Initial theories suggested that they exert hierarchical control over a target CS→US association, facilitating the ease with which a CS can activate the US representation and elicit the CR. Later approaches proposed that occasion setting arises from an association between a configural cue, formed from the conjunction of the occasion setter and CS, and the US. The former solution requires the associative principles dictating how stimuli interact to be modified, while the latter does not. The history of this theoretical distinction, and evidence relating to it, will be briefly reviewed and some novel data presented. In summary, although the contribution of configural processes to learning phenomena is not in doubt, configural theories must make many assumptions to accommodate the existing data, and there are certain classes of evidence that they are logically unable to explain. Our contention is therefore that some kind of hierarchical process is required to explain occasion-setting effects.
[Mh] Termos MeSH primário: Aprendizagem por Associação
Condicionamento Clássico
Condicionamento Operante
Sinais (Psicologia)
Aprendizagem por Discriminação
[Mh] Termos MeSH secundário: Estimulação Acústica
Animais
Generalização do Estímulo
Seres Humanos
Rememoração Mental
Estimulação Luminosa
Ratos
Reforço (Psicologia)
Transferência de Experiência (Psicologia)
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170502
[Lr] Data última revisão:
170502
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160719
[St] Status:MEDLINE


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[PMID]:27728838
[Au] Autor:Ahrens LM; Pauli P; Reif A; Mühlberger A; Langs G; Aalderink T; Wieser MJ
[Ad] Endereço:Department of Psychology I, University of Würzburg, Germany. Electronic address: lea.ahrens@uni-wuerzburg.de.
[Ti] Título:Fear conditioning and stimulus generalization in patients with social anxiety disorder.
[So] Source:J Anxiety Disord;44:36-46, 2016 Dec.
[Is] ISSN:1873-7897
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Although overgeneralization seems to be a hallmark of several anxiety disorders, this until now has not been investigated in social anxiety disorder (SAD). Therefore, we examined fear generalization in 26 SAD patients and 29 healthy controls (HC) using two faces as conditioned stimuli (CS+, CS-), and a loud scream and a fearful face as unconditioned stimulus (US). Generalization was tested by presenting both CS and four morphs of the two faces (generalization stimuli [GSs]), while ratings, heart rate (HR) and skin conductance responses (SCR) were recorded. Results revealed that SAD patients rated all stimuli as less pleasant and more arousing compared to HC. Moreover, ratings and SCR indicated that both groups generalized their acquired fear from the CS+ to GSs. Remarkably, only SAD patients showed generalization in HR responses (fear bradycardia). Overall, SAD seems not to be characterized by strong overgeneralization but discrepancies in fear responses to both conditioned and generalized threat stimuli.
[Mh] Termos MeSH primário: Ansiedade/psicologia
Condicionamento Clássico/fisiologia
Medo/fisiologia
Generalização (Psicologia)/fisiologia
Generalização do Estímulo/fisiologia
Fobia Social/psicologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Feminino
Seres Humanos
Masculino
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161012
[St] Status:MEDLINE


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[PMID]:27649900
[Au] Autor:Greville WJ; Dymond S; Newton PM
[Ad] Endereço:Department of Psychology, Aberystwyth University, Aberystwyth, United Kingdom.
[Ti] Título:The student experience of applied equivalence-based instruction for neuroanatomy teaching.
[So] Source:J Educ Eval Health Prof;13:32, 2016.
[Is] ISSN:1975-5937
[Cp] País de publicação:Korea (South)
[La] Idioma:eng
[Ab] Resumo:PURPOSE: Esoteric jargon and technical language are potential barriers to the teaching of science and medicine. Effective teaching strategies which address these barriers are desirable. Here, we created and evaluated the effectiveness of stand-alone 'equivalence-based instruction' (EBI) learning resources wherein the teaching of a small number of direct relationships between stimuli (e.g., anatomical regions, their function, and pathology) results in the learning of higher numbers of untaught relationships. METHODS: We used a pre and post test design to assess students' learning of the relations. Resources were evaluated by students for perceived usefulness and confidence in the topic. Three versions of the resources were designed, to explore learning parameters such as the number of stimulus classes and the number of relationships within these classes. RESULTS: We show that use of EBI resulted in demonstrable learning of material that had not been directly taught. The resources were well received by students, even when the quantity of material to be learned was high. There was a strong desire for more EBI-based teaching. The findings are discussed in the context of an ongoing debate surrounding 'rote' vs. 'deep' learning, and the need to balance this debate with considerations of cognitive load and esoteric jargon routinely encountered during the study of medicine. CONCLUSION: These standalone EBI resources were an effective, efficient and well-received method for teaching neuroanatomy to medical students. The approach may be of benefit to other subjects with abundant technical jargon, science and other areas of medicine.
[Mh] Termos MeSH primário: Cognição
Educação de Graduação em Medicina/métodos
Generalização do Estímulo
Neuroanatomia/educação
Estudantes de Medicina
Materiais de Ensino
Ensino
[Mh] Termos MeSH secundário: Atitude
Instrução por Computador
Currículo
Avaliação Educacional
Seres Humanos
Aprendizagem
Terminologia como Assunto
Visão Ocular
Percepção Visual
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170424
[Lr] Data última revisão:
170424
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160922
[St] Status:MEDLINE


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[PMID]:27442451
[Au] Autor:O'Connell G; Myers CE; Hopkins RO; McLaren RP; Gluck MA; Wills AJ
[Ad] Endereço:School of Psychology, Plymouth University.
[Ti] Título:Amnesic patients show superior generalization in category learning.
[So] Source:Neuropsychology;30(8):915-919, 2016 Nov.
[Is] ISSN:1931-1559
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Generalization is the application of existing knowledge to novel situations. Questions remain about the precise role of the hippocampus in this facet of learning, but a connectionist model by Gluck and Myers (1993) predicts that generalization should be enhanced following hippocampal damage. METHOD: In a two-category learning task, a group of amnesic patients (n = 9) learned the training items to a similar level of accuracy as matched controls (n = 9). Both groups then classified new items at various levels of distortion. RESULTS: The amnesic group showed significantly more accurate generalization to high-distortion novel items, a difference also present compared to a larger group of unmatched controls (n = 33). CONCLUSIONS: The model prediction of a broadening of generalization gradients in amnesia, at least for items near category boundaries, was supported by the results. Our study shows for the first time that amnesia can sometimes improve generalization. (PsycINFO Database Record
[Mh] Termos MeSH primário: Amnésia/diagnóstico
Amnésia/fisiopatologia
Amnésia/psicologia
Percepção de Cores/fisiologia
Generalização do Estímulo/fisiologia
Hipocampo/fisiopatologia
Reconhecimento Visual de Modelos/fisiologia
[Mh] Termos MeSH secundário: Adulto
Dano Encefálico Crônico/diagnóstico
Dano Encefálico Crônico/fisiopatologia
Dano Encefálico Crônico/psicologia
Dominância Cerebral/fisiologia
Feminino
Seres Humanos
Hipóxia Encefálica/diagnóstico
Hipóxia Encefálica/fisiopatologia
Hipóxia Encefálica/psicologia
Imagem por Ressonância Magnética
Masculino
Meia-Idade
[Pt] Tipo de publicação:JOURNAL ARTICLE; WEBCASTS
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160722
[St] Status:MEDLINE


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[PMID]:27025533
[Au] Autor:Hughes S; De Houwer J; Barnes-Holmes D
[Ad] Endereço:1 Department of Experimental Clinical and Health Psychology, Ghent University, Belgium.
[Ti] Título:The Moderating Impact of Distal Regularities on the Effect of Stimulus Pairings.
[So] Source:Exp Psychol;63(1):20-44, 2016 Jan.
[Is] ISSN:2190-5142
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Throughout much of the past century psychologists have focused their attention on a seemingly simple question: How do people come to like or dislike stimuli in the environment? Evaluative Conditioning (EC) - a change in liking due to the pairing of stimuli - has been offered as one avenue through which novel preferences may be formed and existing ones altered. In the current article, we offer a new look at EC from the perspective of Contextual Behavioral Science (CBS) and, more specifically, Relational Frame Theory (RFT). We briefly review the EC literature, introduce Contextual Behavioral Science (CBS), Relational Frame Theory (RFT), and then describe a behavioral phenomenon known as arbitrarily applicable relational responding (AARR). Afterwards, we examine the relationship between EC and AARR. This novel perspective offers ways to organize existing as well as predict new EC effects, contributes to debates on "genuine" EC, human versus nonhuman EC, and further facilitates the development and refinement of cognitive theories of EC.
[Mh] Termos MeSH primário: Condicionamento (Psicologia)
Generalização do Estímulo
Modelos Psicológicos
Priming de Repetição
[Mh] Termos MeSH secundário: Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160331
[St] Status:MEDLINE
[do] DOI:10.1027/1618-3169/a000310


  8 / 1242 MEDLINE  
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[PMID]:26830462
[Au] Autor:Kahnt T; Tobler PN
[Ad] Endereço:Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, United States.
[Ti] Título:Dopamine regulates stimulus generalization in the human hippocampus.
[So] Source:Elife;5:e12678, 2016 Feb 02.
[Is] ISSN:2050-084X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The ability to generalize previously learned information to novel situations is fundamental for adaptive behavior. However, too wide or too narrow generalization is linked to neuropsychiatric disorders. Previous research suggests that interactions between the dopaminergic system and the hippocampus may play a role in generalization, but whether and how the degree of generalization can be modulated via these pathways is currently unknown. Here, we addressed this question in humans using pharmacology, functional magnetic resonance imaging, and computational modeling. Blocking dopamine D2-receptors (D2R) altered generalization behavior as revealed by an increased kurtosis of the generalization gradient, and a decreased width of model-derived generalization parameters. Moreover, D2R-blockade modulated similarity-based responses in the hippocampus and decreased midbrain-hippocampal connectivity, which in turn correlated with individual differences in generalization. These results suggest that dopaminergic activity in the hippocampus may relate to the degree of generalization and highlight a potential target for treatment.
[Mh] Termos MeSH primário: Dopamina/metabolismo
Generalização do Estímulo
Hipocampo/fisiologia
[Mh] Termos MeSH secundário: Antagonistas dos Receptores de Dopamina D2/metabolismo
Seres Humanos
Imagem por Ressonância Magnética
Modelos Neurológicos
Receptores de Dopamina D2/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dopamine D2 Receptor Antagonists); 0 (Receptors, Dopamine D2); VTD58H1Z2X (Dopamine)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160203
[St] Status:MEDLINE


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[PMID]:26384654
[Au] Autor:Hutson PH; Rowley HL; Gosden J; Kulkarni RS; Slater N; Love PL; Wang Y; Heal D
[Ad] Endereço:Shire Pharmaceutical, 300 Shire Way, Lexington, MA 02421 USA. Electronic address: phutson@shire.com.
[Ti] Título:The effects in rats of lisdexamfetamine in combination with olanzapine on mesocorticolimbic dopamine efflux, striatal dopamine D2 receptor occupancy and stimulus generalization to a D-amphetamine cue.
[So] Source:Neuropharmacology;101:24-35, 2016 Feb.
[Is] ISSN:1873-7064
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The etiology of schizophrenia is poorly understood and two principle hypotheses have dominated the field. Firstly, that subcortical dopamine function is enhanced while cortical dopamine function is reduced and secondly, that cortical glutamate systems are dysfunctional. It is also widely accepted that currently used antipsychotics have essentially no impact on cognitive deficits and persistent negative symptoms in schizophrenia. Reduced dopamine transmission via dopamine D1 receptors in the prefrontal cortex has been hypothesized to be involved in the aetiology of these symptom domains and enhancing cortical dopamine transmission within an optimal window has been suggested to be potentially beneficial. In these pre-clinical studies we have determined that combined administration of the d-amphetamine pro-drug, lisdexamfetamine and the atypical antipsychotic olanzapine increased dopamine efflux in the rat prefrontal cortex and nucleus accumbens to an extent greater than either drug given separately without affecting olanzapine's ability to block striatal dopamine D2 receptors which is important for its antipsychotic activity. Furthermore, in an established rodent model used to compare the subjective effects of novel compounds the ability of lisdexamfetamine to generalize to a d-amphetamine cue was dose-dependently attenuated when co-administered with olanzapine suggesting that lisdexamfetamine may produce less marked subjective effects when administered adjunctively with olanzapine.
[Mh] Termos MeSH primário: Anfetamina/farmacologia
Benzodiazepinas/farmacologia
Corpo Estriado/metabolismo
Dopamina/metabolismo
Sistema Límbico/efeitos dos fármacos
Dimesilato de Lisdexanfetamina/farmacologia
Receptores de Dopamina D2/metabolismo
[Mh] Termos MeSH secundário: Análise de Variância
Animais
Estimulantes do Sistema Nervoso Central/farmacologia
Cromatografia Líquida de Alta Pressão
Corpo Estriado/efeitos dos fármacos
Sinais (Psicologia)
Antagonistas de Dopamina/farmacologia
Generalização do Estímulo
Masculino
Racloprida/farmacologia
Ratos
Ratos Sprague-Dawley
Espectrometria de Massas em Tandem
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Central Nervous System Stimulants); 0 (Dopamine Antagonists); 0 (Receptors, Dopamine D2); 12794-10-4 (Benzodiazepines); 430K3SOZ7G (Raclopride); CK833KGX7E (Amphetamine); N7U69T4SZR (olanzapine); SJT761GEGS (Lisdexamfetamine Dimesylate); VTD58H1Z2X (Dopamine)
[Em] Mês de entrada:1609
[Cu] Atualização por classe:161126
[Lr] Data última revisão:
161126
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150920
[St] Status:MEDLINE


  10 / 1242 MEDLINE  
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[PMID]:26501405
[Au] Autor:Grzeczkowski L; Tartaglia EM; Mast FW; Herzog MH
[Ti] Título:Linking perceptual learning with identical stimuli to imagery perceptual learning.
[So] Source:J Vis;15(10):13, 2015.
[Is] ISSN:1534-7362
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Perceptual learning is usually thought to be exclusively driven by the stimuli presented during training (and the underlying synaptic learning rules). In some way, we are slaves of our visual experiences. However, learning can occur even when no stimuli are presented at all. For example, Gabor contrast detection improves when only a blank screen is presented and observers are asked to imagine Gabor patches. Likewise, performance improves when observers are asked to imagine the nonexisting central line of a bisection stimulus to be offset either to the right or left. Hence, performance can improve without stimulus presentation. As shown in the auditory domain, performance can also improve when the very same stimulus is presented in all learning trials and observers were asked to discriminate differences which do not exist (observers were not told about the set up). Classic models of perceptual learning cannot handle these situations since they need proper stimulus presentation, i.e., variance in the stimuli, such as a left versus right offset in the bisection stimulus. Here, we show that perceptual learning with identical stimuli occurs in the visual domain, too. Second, we linked the two paradigms by telling observers that only the very same bisection stimulus was presented in all trials and asked them to imagine the central line to be offset either to the left or right. As in imagery learning, performance improved.
[Mh] Termos MeSH primário: Imagem Eidética/fisiologia
Generalização do Estímulo/fisiologia
Aprendizagem/fisiologia
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Adulto
Seres Humanos
Rememoração Mental
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1602
[Cu] Atualização por classe:151027
[Lr] Data última revisão:
151027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151027
[St] Status:MEDLINE
[do] DOI:10.1167/15.10.13



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