نتایج جستجو برای: verbal working memory vwm

تعداد نتایج: 463269  

2016
Bella Z. Veksler Rachel Boyd Christopher W. Myers Glenn Gunzelmann

Visual working memory (VWM) is a construct hypothesized to store a small amount of accurate perceptual information that can be brought to bear on a task. Much research concerns the construct’s capacity and the precision of the information stored. Two prominent theories of VWM representations have emerged: slot-based and continuous-resource mechanisms. Prior modeling work suggests that a continu...

Journal: :Trends in cognitive sciences 2017
Yaoda Xu

Recent human fMRI pattern-decoding studies have highlighted the involvement of sensory areas in visual working memory (VWM) tasks and argue for a sensory account of VWM storage. In this review, evidence is examined from human behavior, fMRI decoding, and transcranial magnetic stimulation (TMS) studies, as well as from monkey neurophysiology studies. Contrary to the prevalent view, the available...

Journal: :Trends in cognitive sciences 2018
Surya Gayet Chris L E Paffen Stefan Van der Stigchel

Human visual processing is subject to a dynamic influx of visual information. Visual working memory (VWM) allows for maintaining relevant visual information available for subsequent behavior. According to the dominating view, VWM recruits sensory processing areas to maintain this visual information online (i.e., the ‘sensory recruitment’ hypothesis). In her recent Trends in Cognitive Sciences a...

Journal: :Psychological review 2017
Ronald van den Berg Aspen H Yoo Wei Ji Ma

Although visual working memory (VWM) has been studied extensively, it is unknown how people form confidence judgments about their memories. Peirce (1878) speculated that Fechner's law-which states that sensation is proportional to the logarithm of stimulus intensity-might apply to confidence reports. Based on this idea, we hypothesize that humans map the precision of their VWM contents to a con...

Journal: :Neuropsychologia 2014
Dwight J Peterson Gennadiy Gurariy Gabriella G Dimotsantos Hector Arciniega Marian E Berryhill Gideon P Caplovitz

Visual working memory (VWM) capacity limitations are estimated to be ~4 items. Yet, it remains unclear why certain items from a given memory array may be successfully retrieved from VWM and others are lost. Existing measures of the neural correlates of VWM cannot address this question because they measure the aggregate processing of the entire stimulus array rather than neural signatures of ind...

2014
Mohammad Zia Ul Haq Katshu Giovanni d'Avossa Suliann Ben Hamed

While sensory processes are tuned to particular features, such as an object's specific location, color or orientation, visual working memory (vWM) is assumed to store information using representations, which generalize over a feature dimension. Additionally, current vWM models presume that different features or objects are stored independently. On the other hand, configurational effects, when o...

2017
Tengfei Liang Zhonghua Hu Qiang Liu

During the comparison stage of visual working memory (VWM) processing, detecting the mismatch between the external sensory input and internal representations is a crucial cognitive ability for human, but the neural mechanism behind it remains largely unclear. The present study investigated the role of frontal theta power in detecting the mismatched information in VWM in a delayed matching task....

2011
Amanda Hahn Takashi Yamauchi Na-Yung Yu

This study aims to examine the factors that influence the use of labels when making similarity decisions. We predict that a person‘s visual working memory (VWM) ability and implicit beliefs can predict the frequency in which a subject will rely on labels when making similarity decisions. To test this hypothesis, participants completed a VWM task along with a questionnaire to study how they rela...

Journal: :NeuroImage 2006
Joo-Hyun Song Yuhong Jiang

Visual working memory (VWM) allows us to hold visual information briefly in our minds after its disappearance. It is important for bridging the present to the immediate past. Previous neuroscience studies on VWM have shown that several parietal, frontal, and occipitotemporal brain regions subserve this function. Those studies, however, have often focused on VWM for a single property, such as co...

Journal: :Vision Research 2002
Jocelyn Faubert Anne Bellefeuille

Visual working memory (VWM) for spatial frequency information was assessed in both young and older observers. In the first experiment we assessed the effect of a memory mask on a VWM task. We found no effect of mask on retention for either the young or older groups. This argues against the 'inhibition' hypothesis of aging in regards to visual processing, which suggests that the elderly should h...

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