Abstract：
:We investigated the sources of dual-task costs arising in multisensory working memory (WM) tasks, where stimuli from different modalities have to be simultaneously maintained. Performance decrements relative to unimodal single-task baselines have been attributed to a modality-unspecific central WM store, but such costs could also reflect increased demands on central executive processes involved in dual-task coordination. To compare these hypotheses, we asked participants to maintain two, three, or four visual items. Unimodal trials, where only this visual task was performed, and bimodal trials, where a concurrent tactile WM task required the additional maintenance of two tactile items, were randomly intermixed. We measured the visual and tactile contralateral delay activity (CDA/tCDA components) as markers of WM maintenance in visual and somatosensory areas. There were reliable dual-task costs, as visual CDA components were reduced in size and visual WM accuracy was impaired on bimodal relative to unimodal trials. However, these costs did not depend on visual load, which caused identical CDA modulations in unimodal and bimodal trials, suggesting that memorizing tactile items did not reduce the number of visual items that could be maintained. Visual load did not also affect tCDA amplitudes. These findings indicate that bimodal dual-task costs do not result from a competition between multisensory items for shared storage capacity. Instead, these costs reflect generic limitations of executive control mechanisms that coordinate multiple cognitive processes in dual tasks. Our results support hierarchical models of WM, where distributed maintenance processes with modality-specific capacity limitations are controlled by a central executive mechanism.
journal_name
J Cogn Neuroscijournal_title
Journal of cognitive neuroscienceauthors
Katus T,Eimer Mdoi
10.1162/jocn_a_01348subject
Has Abstractpub_date
2019-02-01 00:00:00pages
175-185issue
2eissn
0898-929Xissn
1530-8898journal_volume
31pub_type
杂志文章abstract：:Visual object recognition is performed effortlessly by humans notwithstanding the fact that it requires a series of complex computations, which are, as yet, not well understood. Here, we tested a novel account of the representations used for visual recognition and their neural correlates using fMRI. The rationale is b...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01420
更新日期：2019-09-01 00:00:00
abstract：:The stop signal task (SST) is the gold standard experimental model of inhibitory control. However, neither SST condition-contrast (stop vs. go, successful vs. failed stop) purely operationalizes inhibition. Because stop trials include a second, infrequent signal, the stop versus go contrast confounds inhibition with a...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01503
更新日期：2020-04-01 00:00:00
abstract：:Two patients with residual nonfluent aphasia after ischemic stroke received an intention treatment that was designed to shift intention and language production mechanisms from the frontal lobe of the damaged left hemisphere to the right frontal lobe. Consistent with experimental hypotheses, the first patient showed im...
journal_title：Journal of cognitive neuroscience
pub_type： 临床试验,杂志文章
doi：10.1162/0898929053279487
更新日期：2005-03-01 00:00:00
abstract：:Although research on theory of mind has strongly implicated the dorsomedial pFC (incuding medial BA 8 and BA 9), the unique contributions of medial pFC (MPFC; corresponding to medial BA 10) to mentalizing remain uncertain. The extant literature has considered the possibility that these regions may be specialized for s...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_00700
更新日期：2015-01-01 00:00:00
abstract：:Automatic processes are usually thought to occur independently of any cognitive resources. This traditional view has been recently challenged by showing that temporal attention to a target stimulus is a prerequisite for "automatic" response priming. The event-related potential (ERP) study reported here extends this re...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/089892906775783688
更新日期：2006-02-01 00:00:00
abstract：:The present study aimed to examine the influence of musical expertise on the metric and semantic aspects of speech processing. In two attentional conditions (metric and semantic tasks), musicians listened to short sentences ending in trisyllabic words that were semantically and/or metrically congruous or incongruous. ...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2010.21413
更新日期：2011-02-01 00:00:00
abstract：:Abstract Parapsychology is the scientific investigation of apparently paranormal mental phenomena (such as telepathy, i.e., "mind reading"), also known as psi. Despite widespread public belief in such phenomena and over 75 years of experimentation, there is no compelling evidence that psi exists. In the present study,...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2008.20.1.182
更新日期：2008-01-01 00:00:00
abstract：:Abstract The topic of multiple forms of memory is considered from a biological point of view. Fact-and-event (declarative, explicit) memory is contrasted with a collection of non conscious (non-declarative, implicit) memory abilities including skills and habits, priming, and simple conditioning. Recent evidence is rev...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.1992.4.3.232
更新日期：1992-07-01 00:00:00
abstract：:The cognitive processing of concepts, that is, abstract general ideas, has been mostly studied with language. However, other domains, such as music, can also convey concepts. Koelsch et al. [Koelsch, S., Kasper, E., Sammler, D., Schulze, K., Gunter, T., & Friederici, A. D. Music, language and meaning: Brain signatures...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2009.21113
更新日期：2009-10-01 00:00:00
abstract：:A growing body of literature suggests that human individuals differ in their ability to process face identity. These findings mainly stem from explicit behavioral tasks, such as the Cambridge Face Memory Test (CFMT). However, it remains an open question whether such individual differences can be found in the absence o...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01126
更新日期：2017-08-01 00:00:00
abstract：:Behavioral studies indicate that spatial and object working memory are computed by dissociable subsystems. We investigated the neural bases of this dissociation with a whole-brain fMRI design and analysis technique that permitted direct assessment of delay-period activity, uncontaminated by other components of the tri...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/089892999563652
更新日期：1999-11-01 00:00:00
abstract：:In social interactions, it is often necessary to rapidly encode the association between visually presented faces and auditorily presented names. The present study used event-related potentials to examine the neural correlates of associative encoding for multimodal face-name pairs. We assessed study-phase processes lea...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2009.21201
更新日期：2010-03-01 00:00:00
abstract：:Although the amygdala's role in processing facial expressions of fear has been well established, its role in the processing of other emotions is unclear. In particular, evidence for the amygdala's involvement in processing expressions of happiness and sadness remains controversial. To clarify this issue, we constructe...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/089892904322926782
更新日期：2004-04-01 00:00:00
abstract：:Tactile-visual links in spatial attention were examined by presenting spatially nonpredictive tactile cues to the left or right hand, shortly prior to visual targets in the left or right hemifield. To examine the spatial coordinates of any crossmodal links, different postures were examined. The hands were either uncro...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/08989290152001899
更新日期：2001-05-15 00:00:00
abstract：:We report results from two experiments in which subjects had to categorize briefly presented upright or inverted natural scenes. In the first experiment, subjects decided whether images contained animals or human faces presented at different scales. Behavioral results showed virtually identical processing speed betwee...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2007.19.8.1241
更新日期：2007-08-01 00:00:00
abstract：:Neural systems involved in the processing of written language have been identified by a number of functional imaging studies. Structural changes in cortical anatomy that occur in the course of literacy acquisition, however, remain largely unknown. Here, we follow elementary school children over their first 2 years of ...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_00710
更新日期：2015-02-01 00:00:00
abstract：:The perceptual system integrates synchronized auditory-visual signals in part to promote individuation of objects in cluttered environments. The processing of auditory-visual synchrony may more generally contribute to cognition by synchronizing internally generated multimodal signals. Reading is a prime example becaus...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01052
更新日期：2017-03-01 00:00:00
abstract：:We explored age-related differences in executive function during selection of a target from among active representations. Refreshing (thinking briefly of a just-activated representation) is an executive process that foregrounds a target relative to other active representations. In a behavioral study, participants saw ...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2008.20508
更新日期：2008-05-01 00:00:00
abstract：:Alpha oscillations (8-14 Hz) are proposed to represent an active mechanism of functional inhibition of neuronal processing. Specifically, alpha oscillations are associated with pulses of inhibition repeating every ∼100 msec. Whether alpha phase, similar to alpha power, is under top-down control remains unclear. Moreov...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01280
更新日期：2018-08-01 00:00:00
abstract：:It has been suggested that both the posterior parietal cortex (PPC) and the extrastriate occipital cortex (OC) participate in the spatial processing of sounds. However, the precise time-course of their contribution remains unknown, which is of particular interest, considering that it could give new insights into the m...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2008.20102
更新日期：2008-08-01 00:00:00
abstract：:Behavioral research in human verbal memory function led to the initial definition of episodic memory and semantic memory. A complete model of the neural mechanisms of episodic memory must include the capacity to encode and mentally reconstruct everything that humans can recall from their experience. This article propo...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01439
更新日期：2019-09-01 00:00:00
abstract：:Converging evidence highlights the important role of the amygdala in the enhanced memory for emotional material. However, it is unknown whether any regional and/or hemispheric specificity exists regarding its involvement in the different memory stages, such as encoding and retrieval. We directly addressed this issue b...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2006.18.8.1359
更新日期：2006-08-01 00:00:00
abstract：:Prospective memory (PM) refers to the cognitive processes associated with remembering to perform an intended action after a delay. Varying the salience of PM cues while keeping the intended response constant, we investigated the extent to which participants relied on strategic monitoring, through sustained, top-down c...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_01604
更新日期：2020-10-01 00:00:00
abstract：:The goal of the present study was to investigate the electrophysiological correlates of second-language (L2) morphosyntactic processing in highly proficient late learners of an L2 with long exposure to the L2 environment. ERPs were collected from 22 English-Spanish late learners while they read sentences in which morp...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2009.21304
更新日期：2010-08-01 00:00:00
abstract：:Electrophysiological studies using event-related potentials have demonstrated that face stimuli elicit a greater negative brain potential in right posterior recording sites 170 msec after stimulus onset (N170) relative to nonface stimuli. Results from repetition priming paradigms have shown that repeated exposures of ...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2006.18.9.1488
更新日期：2006-09-01 00:00:00
abstract：:There are great individual differences in learning abilities, but their neural bases, especially among normal populations, are not well understood. Using functional magnetic resonance imaging and a training paradigm, the present study investigated individual differences in cerebral asymmetry in fusiform regions when p...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2006.18.6.923
更新日期：2006-06-01 00:00:00
abstract：:A key task for the brain is to determine which pieces of information are worth storing in memory. To build a more complete representation of the environment, memory systems may prioritize new information that has not already been stored. Here, we propose a mechanism that supports this preferential encoding of new info...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_00889
更新日期：2016-01-01 00:00:00
abstract：:Right hemisphere lesions often lead to severe disorders in spatial awareness and behavior, such as left hemispatial neglect. Neglect involves not only pathological biases in attention and exploration but also deficits in internal representations of space and spatial working memory. Here we designed a new paradigm to t...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn.2007.19.8.1388
更新日期：2007-08-01 00:00:00
abstract：:We investigated neural correlates of human visual orienting using event-related functional magnetic resonance imaging (fMRI). When subjects voluntarily directed attention to a peripheral location, we recorded robust and sustained signals uniquely from the intraparietal sulcus (IPs) and superior frontal cortex (near th...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/089892902317362029
更新日期：2002-04-01 00:00:00
abstract：:Interactions between stimuli's acoustic features and experience-based internal models of the environment enable listeners to compensate for the disruptions in auditory streams that are regularly encountered in noisy environments. However, whether auditory gaps are filled in predictively or restored a posteriori remain...
journal_title：Journal of cognitive neuroscience
pub_type： 杂志文章
doi：10.1162/jocn_a_00835
更新日期：2015-10-01 00:00:00
