Control mechanisms in working memory: A possible function of EEG theta oscillations

Sauseng, Paul; Griesmayr, Birgit; Freunberger, Roman; Klimesch, Wolfgang

doi:10.1016/j.neubiorev.2009.12.006

Cited by 724 publications

(606 citation statements)

References 86 publications

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“…Frontal lobe regions act as an intentional 'pointer' that maintains representations in the parietal-occipital area online and proceeds semantic elaboration. The synchronized activities of the theta band has an important role in the interaction between the anterior and parietal-occipital regions during working memory maintenance and elaboration, suggesting the possibility of entering into long-term memory [6,10]. In the present study, ICA of coherence in the retrieval phase showed a significant difference in the frontal-occipital component that was centered at 1400 ms in the lower theta band when comparing item + context with item ( Figure 8).…”

Section: The Coherent Analysis Of Binding Activities In the Encoding supporting

confidence: 52%

“…Theta synchronized activities were reported to increase in the encoding phase within the frontal regions in which were later identified as old word in old/new recognition. This continuous frontal theta response predicted the successful encoding of words, which reflected the encoding of new information, attention demand, task difficulty, increased cognition demand in episodic memory and rehearsal or elaboration in verbal working memory [10,18]. According to local theta ICA, the frontal component showed a significant difference between item+context and item at 800 ms (Figure 4).…”

Section: The Synchronized Neural Activities Of Item+context Binding Imentioning

confidence: 94%

“…Crespo-Garcia et al [9] reported that the frontal and parietal regions promoted successful encoding, and that coherent activities between the frontal and parietal areas were correlated with successful recall and recognition of words. Furthermore, successful encoding of the semantic characters of a word stimulus required the sharing of information among the ventral stream association areas, visual word form areas and left frontal regions [1,10].…”

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confidence: 99%

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Effects of encoding and retrieval on the mechanism of item + context binding

2011

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To investigate the neural mechanism of semantic representation and color context binding, we used electroencephalograph time frequency and coherence analyses to reveal local and long-range functional coupling in the encoding and retrieval phases of episodic memory. Fifteen undergraduates participated in the experiment and middle-frequency double-character Chinese words were used as stimuli in two types of study-test tasks (context recall and context recognition tests). Significant differences between item+context and item in the encoding phase were observed at the electrodes in the frontal region at 600-800 ms by time frequency analysis. Further differences were observed at 800 ms by independent component analysis: the frontal component and the coherent component of the triangle phase locking structure among the prefrontal, right parietal and left parietal-occipital regions. In the retrieval phase, differences between item+context and item were found on the electrodes at the central parietal and parietal-occipital regions at 400 ms by time frequency analysis, on the parietal-occipital component at 800 ms by independent component analysis and on the coherence component of the anterior right hemisphere and parietal-occipital regions at 1400 ms. In conclusion, the different effects of encoding and retrieval processing on 'binding' are reflected by the differing extents that brain regions engaged in cognitive operations. In the retrieval phase in particular, activities of the parietal-occipital region were specifically associated with 'binding', and coherence between frontal and temporal-parietal regions is a common brain activity in episodic memory.encoding, retrieval, binding, item, context, frontal and parietal-occipital coherence Citation: Xiao X, Ding J H, Guo C Y. Effects of encoding and retrieval on the mechanism of item+context binding.

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Section: The Coherent Analysis Of Binding Activities In the Encoding supporting

confidence: 52%

Section: The Synchronized Neural Activities Of Item+context Binding Imentioning

confidence: 94%

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confidence: 99%

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Effects of encoding and retrieval on the mechanism of item + context binding

2011

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“…Previous studies have found a consistent correlation between theta fronto-parietal synchronization and attentional processing in working memory tasks (Sauseng et al, 2005(Sauseng et al, , 2010Deiber et al, 2007), especially in the right hemisphere (Astle et al, 2015). Also, frontoparietal theta activity has been linked to cognitive control and performance monitoring in association with working memory (Cohen, 2011;Gulbinaite et al, 2014).…”

Section: Fronto-parietal Theta Synchronization During Visual Processingmentioning

confidence: 83%

Synchronization of fronto-parietal beta and theta networks as a signature of visual awareness in neglect

et al. 2017

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The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. In the neglect syndrome, the perceptual deficit for contra-lesional hemi-space is increasingly viewed as a dysfunction of fronto-parietal cortical networks, the disruption of which has been described in neuroanatomical and hemodynamic studies. Here we exploit the superior temporal resolution of electroencephalography (EEG) to study dynamic transient connectivity of fronto-parietal circuits at early stages of visual perception in neglect. As reflected by interregional phase synchronization in a full-field attention task, two functionally distinct frontoparietal networks, in beta (15-25 Hz) and theta (4-8 Hz) frequency bands, were related to stimulus discrimination within the first 200 ms of visual processing. Neglect pathology was specifically associated with significant suppressions of both beta and theta networks engaging right parietal regions. These connectivity abnormalities occurred in a pattern that was distinctly different from what was observed in right-hemisphere lesion patients without neglect. Also, both beta and theta abnormalities contributed additively to visual awareness decrease, quantified in the Behavioural Inattention Test. These results provide evidence for the impairment of fast dynamic fronto-parietal interactions during early stages of visual processing in neglect pathology. Also, they reveal that different modes of fronto-parietal dysfunction contribute independently to deficits in visual awareness at the behavioural level.

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“…As they encounter continuously new information, FBSA might rely heavily on working memory-emotion based consciousness. In general, theta activity is associated with attentional processing, spatial navigation and with the processing of new (episodic) information and working memory (Basar-Eroglu et al 1992;Sauseng et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Brain electrical activities of dancers and fast ball sports athletes are different

et al. 2014

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Exercise training has been shown not only to influence physical fitness positively but also cognition in healthy and impaired populations. However, some particular exercise types, even though comparable based on physical efforts, have distinct cognitive and sensorimotor features. In this study, the effects of different types of exercise, such as fast ball sports and dance training, on brain electrical activity were investigated. Electroencephalography (EEG) scans were recorded in professional dancer, professional fast ball sports athlete (FBSA) and healthy control volunteer groups consisting of twelve subjects each. In FBSA, power of delta and theta frequency activities of EEG was significantly higher than those of the dancers and the controls. Conversely, dancers had significantly higher amplitudes in alpha and beta bands compared to FBSA and significantly higher amplitudes in the alpha band in comparison with controls. The results suggest that cognitive features of physical training can be reflected in resting brain electrical oscillations. The differences in resting brain electrical oscillations between the dancers and the FBSA can be the result of innate network differences determining the talents and/or plastic changes induced by physical training.

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Control mechanisms in working memory: A possible function of EEG theta oscillations

Cited by 724 publications

References 86 publications

Effects of encoding and retrieval on the mechanism of item + context binding

Effects of encoding and retrieval on the mechanism of item + context binding

Synchronization of fronto-parietal beta and theta networks as a signature of visual awareness in neglect

Brain electrical activities of dancers and fast ball sports athletes are different

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