Top down attentional control

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August undefined, 2024

Web1. aug 2012 · The most prominent models of attentional control have described attentional control in terms of a dichotomy between top-down and bottom-up control (sometimes … WebThe neural mechanisms of top-down attentional control. Selective visual attention involves dynamic interplay between attentional control systems and sensory brain structures. We …

Bottom-up and top-down attention: different processes and overlapping neural systems

WebThe locus coeruleus (LC), the main source of NE in the brain, is thought to be involved in attentional control, among other cognitive functions, by modulating neuronal activity in the prefrontal cortex (PFC) (12, 13).Increased neuronal activity in the human PFC and improved performance have been observed during cognitive tasks measuring attention and … Web1. dec 2012 · Since connections between putative control regions and sensory areas are known to mediate top-down attention signals (Armstrong et al., 2006, Moore, 2006, Moore and Armstrong, 2003, Moore and Fallah, 2004, Noudoost et al., 2010), the reinforcement of these pathways may allow faster and more efficient gain modulations after training. jekits nrw

Frontiers Top-down modulation of attention by emotion

WebAt the brain level this top-down control is supported particularly by the frontoparietal cortical networks, crucial for working memory maintenance, attention allocation, motor planning and ... Web19. mar 2024 · Voluntary allocation of visual attention is controlled by top-down signals generated within the Frontal Eye Fields (FEFs) that can change the excitability of lower … Web30. mar 2007 · It also fits with attenuation of top-down effects in the posterior cortex after PFC damage (25–27). Although both the frontal and parietal cortex are involved in … jekits logo

Adolescent frontal top-down neurons receive heightened local ... - Nature

Top–Down Attentional Modulation in Human Frontal Cortex: …

WebNeural top–down control of physiology concerns the direct regulation by the brain of physiological functions (in addition to smooth muscle and glandular ones). Cellular … Web11. júl 2012 · In this classic categorization of attentional control, top-down attention prioritizes information that is relevant to one's behavioral goals, often via explicit knowledge, whereas... lahaye stephanieWeb1. mar 2000 · The neural mechanisms of top-down attentional control J. Hopfinger, M. Buonocore, G. Mangun Published 1 March 2000 Psychology, Biology Nature Neuroscience Selective visual attention involves dynamic interplay between attentional control systems and sensory brain structures. lahaye tiedemann

"Web25. feb 2024 · In particular changes in quiet eye, a behaviour associated with top-down attention control (Vine and Wilson 2011), may indicate that the extreme focus reported during flow (Jackson and Csikszentmihalyi 1999) is due to goal-directed influences on attentional selection. Given the findings from mediation, future research may wish to … " - Top down attentional control

Top down attentional control

Computational Circuit Mechanisms Underlying Thalamic Control of Attention

Web24. dec 2024 · separate attentional mechanisms, the ‘top-down’ system that involves voluntary attentional control determined by the observer’s goals, and the ‘bottom-up’ system that involves involun-tary attentional control based on the saliency of physical stimuli [6–8]. The functioning of the top-down system is often examined by using endogenous ... Web12. apr 2024 · Top 8 Best Treadmills Under $1000 Reviewed. 1. Top Pick: Schwinn 810 Treadmill. Product Dimensions : 69.1” L x 35.6” W x 56.7” H (folded: 60.2” H x 39.5” L) Warranty: 10 years motor and frame, 1 year mechanical and electrical, and 1 year labor. Additional features: SoftTrak Cushioning System; Bluetooth, Explore the World App, …

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Web20. dec 2013 · (A) Top-down modulation of the firing rate. The mean firing rate of V4 neurons was plotted for when the stimulus was attended (black … Web16. okt 2024 · Although this internal state can occupy up to half of our awake hours, dominant accounts of top–down attentional control implicating the frontal cortex have …

WebOver the past few years, insights on the neural circuits and mechanisms of bottom-up and top-down attention have been gained through neurophysiological experiments. Attention …

Web1. aug 2024 · For example, in one of the first studies to comprehensively demonstrate top-down attentional control of unconscious cues, Ansorge and Neumann conclude that “the … Web30. mar 2007 · Attention can be focused volitionally by “top-down” signals derived from task demands and automatically by “bottom-up” signals from salient stimuli. The frontal and parietal cortices are involved, but their neural activity has not been directly compared. Therefore, we recorded from them simultaneously in monkeys.

WebTop-down control presupposes the existence of modulatory signals from higher to lower level visual areas that could potentially prime specific representations in visual cortex to facilitate a faster and more effective …

Web11. jan 2024 · Top-down attentional control mechanisms enable selection of the task-relevant target by limiting the influence of sensory information. Although the lateral … lahaye tiedemann ulmAttentional control theory focuses on anxiety and cognitive performance. The assumption of this theory is that the effects of anxiety on attentional control are key to understanding the relationship between anxiety and performance. In general, anxiety inhibits attentional control on a specific task by impairing processing efficiency. There are three functions associated with this theory. The inhibition function prevents stimuli unrelated to a task and responses from disruptin… jeki sbWebNational Center for Biotechnology Information lahaye terrassementWeb28. feb 2024 · Attentional Control Over Unconscious Processing It has long been assumed that the processing of unconscious information proceeds in an “automatic” manner, independent of the goals of the individual. Strategic processing and cognitive control is assumed to be exclusive to the stimuli that are consciously perceived. lahazoneWeb26. sep 2024 · Adding a top-down attentional control allows an accurate comparison between AB and EIB and understanding the relative contribution of spatiotemporal competition account in the spatial distribution of blink. Though both mechanisms (early spatiotemporal perceptual competition and a central bottleneck) could be implicated in … jekits tanzenWeb1. mar 2000 · The neural mechanisms of top-down attentional control Scanning procedures.. Functional images were acquired with a Signa Advantage 1.5 Tesla whole-body MRI system (General... Image processing.. The first 16 images at each slice location … We would like to show you a description here but the site won’t allow us. lahbWeb1. feb 2008 · The present studies were designed to explore the potential influence of intertrial priming on top-down control settings known to modulate the capture of spatial attention. In Experiment 1, subjects responded to unpredictably red or green colour-singleton targets preceded by uninformative red or… View on Taylor & Francis Save to Library Create … jeki unerry