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Pesquisa : F02.463.425.234 [Categoria DeCS]
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[PMID]:29384612
[Au] Autor:Grove PM; Robertson C; Harris LR
[Ti] Título:Disambiguating the Stream/Bounce Illusion With Inference.
[So] Source:Multisens Res;29(4-5):453-64, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The 'stream/bounce' illusion refers to the perception of an ambiguous visual display in which two discs approach each other on a collision course. The display can be seen as two discs streaming through each other or bouncing off each other. Which perception dominates, may be influenced by a brief transient, usually a sound, presented around the time of simulated contact. Several theories have been proposed to account for the switching in dominance based on sensory processing, attention and cognitive inference, but a universally applicable, parsimonious explanation has not emerged. We hypothesized that only cognitive inference would be influenced by the perceptual history of the display. We rendered the display technically unambiguous by vertically offsetting the targets' trajectories and manipulated their history by allowing the objects to switch from one trajectory to the other up to four times before the potential collision point. As the number of switches increased, the number of 'bounce' responses also increased. These observations show that expectancy is a critical factor in determining whether a bounce or streaming is perceived and may form the basis for a universal explanation of instances of the stream/bounce illusion.
[Mh] Termos MeSH primário: Percepção Auditiva/fisiologia
Percepção de Movimento/fisiologia
Ilusões Ópticas/fisiologia
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Sinais (Psicologia)
Feminino
Seres Humanos
Masculino
Detecção de Sinal Psicológico
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


  2 / 32048 MEDLINE  
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[PMID]:29384608
[Au] Autor:DeLucia PR; Preddy D; Oberfeld D
[Ti] Título:Audiovisual Integration of Time-to-Contact Information for Approaching Objects.
[So] Source:Multisens Res;29(4-5):365-95, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Previous studies of time-to-collision (TTC) judgments of approaching objects focused on effectiveness of visual TTC information in the optical expansion pattern (e.g., visual tau, disparity). Fewer studies examined effectiveness of auditory TTC information in the pattern of increasing intensity (auditory tau), or measured integration of auditory and visual TTC information. Here, participants judged TTC of an approaching object presented in the visual or auditory modality, or both concurrently. TTC information provided by the modalities was jittered slightly against each other, so that auditory and visual TTC were not perfectly correlated. A psychophysical reverse correlation approach was used to estimate the influence of auditory and visual cues on TTC estimates. TTC estimates were shorter in the auditory than the visual condition. On average, TTC judgments in the audiovisual condition were not significantly different from judgments in the visual condition. However, multiple regression analyses showed that TTC estimates were based on both auditory and visual information. Although heuristic cues (final sound pressure level, final optical size) and more reliable information (relative rate of change in acoustic intensity, optical expansion) contributed to auditory and visual judgments, the effect of heuristics was greater in the auditory condition. Although auditory and visual information influenced judgments, concurrent presentation of both did not result in lower response variability compared to presentation of either one alone; there was no multimodal advantage. The relative weightings of heuristics and more reliable information differed between auditory and visual TTC judgments, and when both were available, visual information was weighted more heavily.
[Mh] Termos MeSH primário: Percepção Auditiva/fisiologia
Desempenho Psicomotor/fisiologia
Percepção Visual/fisiologia
[Mh] Termos MeSH secundário: Adolescente
Sinais (Psicologia)
Feminino
Seres Humanos
Masculino
Psicofísica
Fatores de Tempo
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


  3 / 32048 MEDLINE  
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[PMID]:29384605
[Au] Autor:Rohde M; van Dam LCJ; Ernst M
[Ti] Título:Statistically Optimal Multisensory Cue Integration: A Practical Tutorial.
[So] Source:Multisens Res;29(4-5):279-317, 2016.
[Is] ISSN:2213-4794
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Humans combine redundant multisensory estimates into a coherent multimodal percept. Experiments in cue integration have shown for many modality pairs and perceptual tasks that multisensory information is fused in a statistically optimal manner: observers take the unimodal sensory reliability into consideration when performing perceptual judgments. They combine the senses according to the rules of Maximum Likelihood Estimation to maximize overall perceptual precision. This tutorial explains in an accessible manner how to design optimal cue integration experiments and how to analyse the results from these experiments to test whether humans follow the predictions of the optimal cue integration model. The tutorial is meant for novices in multisensory integration and requires very little training in formal models and psychophysical methods. For each step in the experimental design and analysis, rules of thumb and practical examples are provided. We also publish Matlab code for an example experiment on cue integration and a Matlab toolbox for data analysis that accompanies the tutorial online. This way, readers can learn about the techniques by trying them out themselves. We hope to provide readers with the tools necessary to design their own experiments on optimal cue integration and enable them to take part in explaining when, why and how humans combine multisensory information optimally.
[Mh] Termos MeSH primário: Teorema de Bayes
Encéfalo/fisiologia
Sinais (Psicologia)
Modelos Neurológicos
Percepção/fisiologia
Células Receptoras Sensoriais/fisiologia
[Mh] Termos MeSH secundário: Seres Humanos
Funções Verossimilhança
Teoria Psicológica
Projetos de Pesquisa
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE


  4 / 32048 MEDLINE  
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[PMID]:28743727
[Au] Autor:Lichtenberg NT; Pennington ZT; Holley SM; Greenfield VY; Cepeda C; Levine MS; Wassum KM
[Ad] Endereço:Department of Psychology and.
[Ti] Título:Basolateral Amygdala to Orbitofrontal Cortex Projections Enable Cue-Triggered Reward Expectations.
[So] Source:J Neurosci;37(35):8374-8384, 2017 Aug 30.
[Is] ISSN:1529-2401
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:To make an appropriate decision, one must anticipate potential future rewarding events, even when they are not readily observable. These expectations are generated by using observable information (e.g., stimuli or available actions) to retrieve often quite detailed memories of available rewards. The basolateral amygdala (BLA) and orbitofrontal cortex (OFC) are two reciprocally connected key nodes in the circuitry supporting such outcome-guided behaviors. But there is much unknown about the contribution of this circuit to decision making, and almost nothing known about the whether any contribution is via direct, monosynaptic projections, or the direction of information transfer. Therefore, here we used designer receptor-mediated inactivation of OFC→BLA or BLA→OFC projections to evaluate their respective contributions to outcome-guided behaviors in rats. Inactivation of BLA terminals in the OFC, but not OFC terminals in the BLA, disrupted the selective motivating influence of cue-triggered reward representations over reward-seeking decisions as assayed by Pavlovian-to-instrumental transfer. BLA→OFC projections were also required when a cued reward representation was used to modify Pavlovian conditional goal-approach responses according to the reward's current value. These projections were not necessary when actions were guided by reward expectations generated based on learned action-reward contingencies, or when rewards themselves, rather than stored memories, directed action. These data demonstrate that BLA→OFC projections enable the cue-triggered reward expectations that can motivate the execution of specific action plans and allow adaptive conditional responding. Deficits anticipating potential future rewarding events are associated with many psychiatric diseases. Presently, we know little about the neural circuits supporting such reward expectation. Here we show that basolateral amygdala to orbitofrontal cortex projections are required for expectations of specific available rewards to influence reward seeking and decision making. The necessity of these projections was limited to situations in which expectations were elicited by reward-predictive cues. These projections therefore facilitate adaptive behavior by enabling the orbitofrontal cortex to use environmental stimuli to generate expectations of potential future rewarding events.
[Mh] Termos MeSH primário: Antecipação Psicológica/fisiologia
Complexo Nuclear Basolateral da Amígdala/fisiologia
Tomada de Decisões/fisiologia
Extinção Psicológica/fisiologia
Motivação/fisiologia
Córtex Pré-Frontal/fisiologia
Recompensa
[Mh] Termos MeSH secundário: Animais
Condicionamento Operante/fisiologia
Sinais (Psicologia)
Masculino
Vias Neurais/fisiologia
Ratos
Ratos Long-Evans
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1523/JNEUROSCI.0486-17.2017


  5 / 32048 MEDLINE  
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[PMID]:29374173
[Au] Autor:Shin JH; Kim D; Jung MW
[Ad] Endereço:Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea.
[Ti] Título:Differential coding of reward and movement information in the dorsomedial striatal direct and indirect pathways.
[So] Source:Nat Commun;9(1):404, 2018 01 26.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The direct and indirect pathways of the basal ganglia have long been thought to mediate behavioral promotion and inhibition, respectively. However, this classic dichotomous model has been recently challenged. To better understand neural processes underlying reward-based learning and movement control, we recorded from direct (dSPNs) and indirect (iSPNs) pathway spiny projection neurons in the dorsomedial striatum of D1-Cre and D2-Cre mice performing a probabilistic Pavlovian conditioning task. dSPNs tend to increase activity while iSPNs decrease activity as a function of reward value, suggesting the striatum represents value in the relative activity levels of dSPNs versus iSPNs. Lick offset-related activity increase is largely dSPN selective, suggesting dSPN involvement in suppressing ongoing licking behavior. Rapid responses to negative outcome and previous reward-related responses are more frequent among iSPNs than dSPNs, suggesting stronger contributions of iSPNs to outcome-dependent behavioral adjustment. These findings provide new insights into striatal neural circuit operations.
[Mh] Termos MeSH primário: Condicionamento (Psicologia)/fisiologia
Corpo Estriado/fisiologia
Vias Neurais/fisiologia
Neurônios/fisiologia
[Mh] Termos MeSH secundário: Animais
Corpo Estriado/citologia
Sinais (Psicologia)
Eletrodos Implantados
Masculino
Camundongos
Camundongos Endogâmicos C57BL
Camundongos Transgênicos
Monoterpenos
Movimento
Odorantes/análise
Percepção Olfatória/fisiologia
Optogenética
Pentanóis
Receptores de Dopamina D1/fisiologia
Receptores de Dopamina D2/fisiologia
Recompensa
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Monoterpenes); 0 (Pentanols); 0 (Receptors, Dopamine D1); 0 (Receptors, Dopamine D2); 75GK9XIA8I (carvone); T7EU0O9VPP (citral); Z135787824 (isoamyl acetate)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180227
[Lr] Data última revisão:
180227
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180128
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02817-1


  6 / 32048 MEDLINE  
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[PMID]:27770624
[Au] Autor:Rocchi F; Dylla ME; Bohlen PA; Ramachandran R
[Ad] Endereço:Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN 37212, USA.
[Ti] Título:Spatial and temporal disparity in signals and maskers affects signal detection in non-human primates.
[So] Source:Hear Res;344:1-12, 2017 Feb.
[Is] ISSN:1878-5891
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Detection thresholds for auditory stimuli (signals) increase in the presence of maskers. Natural environments contain maskers/distractors that can have a wide range of spatiotemporal properties relative to the signal. While these parameters have been well explored psychophysically in humans, they have not been well explored in animal models, and their neuronal underpinnings are not well understood. As a precursor to the neuronal measurements, we report the effects of systematically varying the spatial and temporal relationship between signals and noise in macaque monkeys (Macaca mulatta and Macaca radiata). Macaques detected tones masked by noise in a Go/No-Go task in which the spatiotemporal relationships between the tone and noise were systematically varied. Masked thresholds were higher when the masker was continuous or gated on and off simultaneously with the signal, and lower when the continuous masker was turned off during the signal. A burst of noise caused higher masked thresholds if it completely temporally overlapped with the signal, whereas partial overlap resulted in lower thresholds. Noise durations needed to be at least 100 ms before significant masking could be observed. Thresholds for short duration tones were significantly higher when the onsets of signal and masker coincided compared to when the signal was presented during the steady state portion of the noise (overshoot). When signal and masker were separated in space, masked signal detection thresholds decreased relative to when the masker and signal were co-located (spatial release from masking). Masking release was larger for azimuthal separations than for elevation separations. These results in macaques are similar to those observed in humans, suggesting that the specific spatiotemporal relationship between signal and masker determine threshold in natural environments for macaques in a manner similar to humans. These results form the basis for future investigations of neuronal correlates and mechanisms of masking.
[Mh] Termos MeSH primário: Comportamento Animal
Sinais (Psicologia)
Ruído/efeitos adversos
Mascaramento Perceptivo
Nível de Percepção Sonora
Detecção de Sinal Psicológico
Localização de Som
[Mh] Termos MeSH secundário: Estimulação Acústica
Animais
Audiometria
Vias Auditivas/fisiologia
Limiar Auditivo
Macaca mulatta
Macaca radiata
Masculino
Modelos Animais
Periodicidade
Psicoacústica
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161023
[St] Status:MEDLINE


  7 / 32048 MEDLINE  
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[PMID]:29251980
[Au] Autor:Stamates AL; Lau-Barraco C
[Ad] Endereço:Department of Psychology, Old Dominion University.
[Ti] Título:Environmental context effects on craving among consumers of caffeinated alcohol beverages: Associations with aspects of impulsivity.
[So] Source:Exp Clin Psychopharmacol;25(6):503-511, 2017 12.
[Is] ISSN:1936-2293
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The present study primarily sought to (a) determine the effects of environmental context on subjective ratings of craving for alcohol and caffeinated alcohol beverages (CAB) and (b) test inhibitory control, a state behavioral aspect of impulsivity, as a mediator of the association between context and craving in a sample of consumers of CAB. A secondary aim was to examine the associations between trait impulsivity and subjective craving for alcohol and CAB. Participants were 143 (67.1% female) college CAB drinkers. Participants were randomized into either a simulated bar context condition or neutral context condition and completed measures of alcohol use, CAB use, trait impulsivity, inhibitory control on a go/no-go task, and subjective craving for alcohol and CAB. Findings revealed that participants in the simulated bar condition, as compared with those in the neutral condition, reported more subjective craving for alcohol and for CAB; however, alcohol and CAB-specific craving were not different overall or as a function of context. The association between context and subjective craving for alcohol was not mediated by inhibitory control. Trait impulsivity was positively associated with alcohol and CAB-specific craving at baseline and post context exposure, and this finding was similar across both conditions. Therefore, the current investigation suggests that consumers of CAB may be sensitive to alcohol contexts as indicated by greater responses in alcohol and CAB-specific craving. However, inhibitory control did not explain this association. Future research may benefit from examining other potential mechanisms that explain the relationship between context and craving among CAB consumers. (PsycINFO Database Record
[Mh] Termos MeSH primário: Consumo de Bebidas Alcoólicas/psicologia
Bebidas
Cafeína
Fissura
Meio Ambiente
Comportamento Impulsivo/fisiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Sinais (Psicologia)
Feminino
Seres Humanos
Inibição (Psicologia)
Masculino
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
3G6A5W338E (Caffeine)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180224
[Lr] Data última revisão:
180224
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE
[do] DOI:10.1037/pha0000160


  8 / 32048 MEDLINE  
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[PMID]:29304147
[Au] Autor:Jeong MJ; Kim HG; Jeon CJ
[Ad] Endereço:Department of Biology, School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, College of Natural Sciences, and Brain Science and Engineering Institute, Kyungpook National University, Daegu, South Korea.
[Ti] Título:The organization of melanopsin-immunoreactive cells in microbat retina.
[So] Source:PLoS One;13(1):e0190435, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Intrinsically photosensitive retinal ganglion cells (ipRGCs) respond to light and play roles in non-image forming vision, such as circadian rhythms, pupil responses, and sleep regulation, or image forming vision, such as processing visual information and directing eye movements in response to visual clues. The purpose of the present study was to identify the distribution, types, and proportion of melanopsin-immunoreactive (IR) cells in the retina of a nocturnal animal, i.e., the microbat (Rhinolophus ferrumequinum). Three types of melanopsin-IR cells were observed in the present study. The M1 type had dendritic arbors that extended into the OFF sublayer of the inner plexiform layer (IPL). M1 soma locations were identified either in the ganglion cell layer (GCL, M1c; 21.00%) or in the inner nuclear layer (INL, M1d; 5.15%). The M2 type had monostratified dendrites in the ON sublayer of the IPL and their cell bodies lay in the GCL (M2; 5.79%). The M3 type was bistratified cells with dendrites in both the ON and OFF sublayers of the IPL. M3 soma locations were either in the GCL (M3c; 26.66%) or INL (M3d; 4.69%). Additionally, some M3c cells had curved dendrites leading up towards the OFF sublayer of the IPL and down to the ON sublayer of the IPL (M3c-crv; 7.67%). Melanopsin-IR cells displayed a medium soma size and medium dendritic field diameters. There were 2-5 primary dendrites and sparsely branched dendrites with varicosities. The total number of the neurons in the GCL was 12,254.17 ± 660.39 and that of the optic nerve axons was 5,179.04 ± 208.00 in the R. ferrumequinum retina. The total number of melanopsin-IR cells was 819.74 ± 52.03. The ipRGCs constituted approximately 15.83% of the total RGC population. This study demonstrated that the nocturnal microbat, R. ferrumequinum, has a much higher density of melanopsin-IR cells than documented in diurnal animals.
[Mh] Termos MeSH primário: Quirópteros/metabolismo
Retina/metabolismo
Opsinas de Bastonetes/metabolismo
[Mh] Termos MeSH secundário: Animais
Quirópteros/fisiologia
Sinais (Psicologia)
Retina/citologia
Visão Ocular
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Rod Opsins); 0 (melanopsin)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190435


  9 / 32048 MEDLINE  
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[PMID]:29293637
[Au] Autor:Paladini RE; Diana L; Zito GA; Nyffeler T; Wyss P; Mosimann UP; Müri RM; Nef T; Cazzoli D
[Ad] Endereço:Gerontechnology and Rehabilitation Group, University of Bern, Bern, Switzerland.
[Ti] Título:Attentional reorienting triggers spatial asymmetries in a search task with cross-modal spatial cueing.
[So] Source:PLoS One;13(1):e0190677, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Cross-modal spatial cueing can affect performance in a visual search task. For example, search performance improves if a visual target and an auditory cue originate from the same spatial location, and it deteriorates if they originate from different locations. Moreover, it has recently been postulated that multisensory settings, i.e., experimental settings, in which critical stimuli are concurrently presented in different sensory modalities (e.g., visual and auditory), may trigger asymmetries in visuospatial attention. Thereby, a facilitation has been observed for visual stimuli presented in the right compared to the left visual space. However, it remains unclear whether auditory cueing of attention differentially affects search performance in the left and the right hemifields in audio-visual search tasks. The present study investigated whether spatial asymmetries would occur in a search task with cross-modal spatial cueing. Participants completed a visual search task that contained no auditory cues (i.e., unimodal visual condition), spatially congruent, spatially incongruent, and spatially non-informative auditory cues. To further assess participants' accuracy in localising the auditory cues, a unimodal auditory spatial localisation task was also administered. The results demonstrated no left/right asymmetries in the unimodal visual search condition. Both an additional incongruent, as well as a spatially non-informative, auditory cue resulted in lateral asymmetries. Thereby, search times were increased for targets presented in the left compared to the right hemifield. No such spatial asymmetry was observed in the congruent condition. However, participants' performance in the congruent condition was modulated by their tone localisation accuracy. The findings of the present study demonstrate that spatial asymmetries in multisensory processing depend on the validity of the cross-modal cues, and occur under specific attentional conditions, i.e., when visual attention has to be reoriented towards the left hemifield.
[Mh] Termos MeSH primário: Atenção
Sinais (Psicologia)
Análise e Desempenho de Tarefas
[Mh] Termos MeSH secundário: Estimulação Acústica/métodos
Adolescente
Adulto
Feminino
Seres Humanos
Masculino
Meia-Idade
Estimulação Luminosa/métodos
Tempo de Reação
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190677


  10 / 32048 MEDLINE  
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[PMID]:28462484
[Au] Autor:Edwards KS; Shin M
[Ad] Endereço:School of Psychology, Charles Sturt University, Bathurst, New South Wales, Australia.
[Ti] Título:Media multitasking and implicit learning.
[So] Source:Atten Percept Psychophys;79(5):1535-1549, 2017 Jul.
[Is] ISSN:1943-393X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Media multitasking refers to the simultaneous use of different forms of media. Previous research comparing heavy media multitaskers and light media multitaskers suggests that heavy media multitaskers have a broader scope of attention. The present study explored whether these differences in attentional scope would lead to a greater degree of implicit learning for heavy media multitaskers. The study also examined whether media multitasking behaviour is associated with differences in visual working memory, and whether visual working memory differentially affects the ability to process contextual information. In addition to comparing extreme groups (heavy and light media multitaskers) the study included analysis of people who media multitask in moderation (intermediate media multitaskers). Ninety-four participants were divided into groups based on responses to the media use questionnaire, and completed the contextual cueing and n-back tasks. Results indicated that the speed at which implicit learning occurred was slower in heavy media multitaskers relative to both light and intermediate media multitaskers. There was no relationship between working memory performance and media multitasking group, and no relationship between working memory and implicit learning. There was also no evidence for superior performance of intermediate media multitaskers. A deficit in implicit learning observed in heavy media multitaskers is consistent with previous literature, which suggests that heavy media multitaskers perform more poorly than light media multitaskers in attentional tasks due to their wider attentional scope.
[Mh] Termos MeSH primário: Meios de Comunicação
Sinais (Psicologia)
Aprendizagem/fisiologia
Comportamento Multitarefa/fisiologia
Estimulação Luminosa/métodos
[Mh] Termos MeSH secundário: Adolescente
Adulto
Atenção/fisiologia
Cognição/fisiologia
Feminino
Seres Humanos
Masculino
Memória de Curto Prazo/fisiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE
[do] DOI:10.3758/s13414-017-1319-4



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde