ERP correlates of two separate top-down mechanisms in visual categorization

Linnert, Szilvia; Reid, Vincent M.; Westermann, Gert

doi:10.1016/j.ijpsycho.2016.07.264

Cited by 5 publications

(2 citation statements)

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“…This interpretation of P2 does not explain neither the voltage increasing according to visual loading between blocks nor the changed configuration on one corner of the stimuli however. An alternative explanation could be that P2 reflects a "top-down" processing effect [33,74] for maintaining the memorized items as one whole object, and for preventing it from contaminating surrounding stimuli. Such interpretation could also explain why we observed a voltage increasing in that component, related to the complexity of the background geometric form, in the absence of behavioral differences.…”

Section: Discussionmentioning

confidence: 99%

Brain Processing of Complex Geometric Forms in a Visual Memory Task Increases P2 Amplitude

et al. 2020

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We study the cognitive processing of visual working memory in three different conditions of memory load and configuration change. Altering this features has been shown to alter the brain’s processing in memory tasks. Most studies dealing with this issue have used the verbal-phonological modality. We use complex geometric polygons to assess visual working memory in a modified change detection task. Three different types of backgrounds were used to manipulate memory loading and 18 complex geometric polygons to manipulate stimuli configuration. The goal of our study was to test whether the memory load and configuration affect the correct-recall ratios. We expected that increasing visual items loading and changing configuration of items would induce differences in working memory performance. Brain activity related to the task was assessed through event-related potentials (ERP), during the test phase of each trial. Our results showed that visual items loading and changing of item configuration affect working memory on test phase on ERP component P2, but does not affect performance. However frontal related ERP component—P3—was minimally affected by visual memory loading or configuration changing, supporting that working memory is related to a filtering processing in posterior brain regions.

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Section: Discussionmentioning

confidence: 99%

Brain Processing of Complex Geometric Forms in a Visual Memory Task Increases P2 Amplitude

et al. 2020

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“…Due to the close relation of the nickname with self and personal salience, cognitive processing of nickname was involved with strong emotional and motivational responses; thus, it could activate similar P2 and N2 components as those elicited by real names, which was significantly different from those elicited by famous and unfamiliar names. At the same time, the N1 component is associated with the physical characteristics of the stimulus 39 , and all the target stimuli comprised three characters with similar physical characteristics (e.g., length and structure). Thus, there was no significant difference in the N1 component among the names.…”

Section: Discussionmentioning

confidence: 99%

Behavioural and ERP evidence of the self-advantage of online self-relevant information

Niu¹,

Yao²,

Kong³

et al. 2020

Sci Rep

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The present study examined whether individuals experienced the same cognitive advantage for online self-relevant information (nickname) as that experienced for information encountered in real life (real name) through two experiments at both the behavioural and neural levels (event-related potential, ERP). The results indicated that individuals showed the same cognitive advantage for nicknames and real names. At the behavioural level, a nickname was detected as quickly as the real name, and both were detected faster than a famous name; at the neural level, the P300 potential elicited by one’s nickname was similar to that elicited by one’s real name, and both the P300 amplitudes and latencies were larger and more prolonged than those elicited by other name stimuli. These results not only confirmed the cognitive advantage for one’s own nickname and indicated that this self-advantage can be extended to online information, but also indicated that the virtual self could be integrated into the self and further expanded individuals’ self-concept.

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Sex-Related Differences in Working Memory for Simple Visual Features. Analysis of Event-Related Potentials in the Space of Sensors and Dipole Sources

Михайлова

Mayorova

Gerasimenko

et al. 2023

Neurosci Behav Physi

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ERP correlates of two separate top-down mechanisms in visual categorization

Cited by 5 publications

References 0 publications

Brain Processing of Complex Geometric Forms in a Visual Memory Task Increases P2 Amplitude

Brain Processing of Complex Geometric Forms in a Visual Memory Task Increases P2 Amplitude

Behavioural and ERP evidence of the self-advantage of online self-relevant information

Sex-Related Differences in Working Memory for Simple Visual Features. Analysis of Event-Related Potentials in the Space of Sensors and Dipole Sources

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