Prefrontal cortex modulates posterior alpha oscillations during top-down guided visual perception

By Randolph F. Helfrich, Melody Huang, G. Wilson, Robert T. Knight. 2017

Subfields: Cognitive Neuroscience, Experimental and Cognitive Psychology

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Cognitive Neuroscience

In Experimental and Cognitive Psychology

Citations in the corpus

Aperiodic neural timescales in prefrontal cortex dilate with increased task abstraction (2025, unknown): “…delta and theta oscillations with motor-related beta oscillatory power (28,51,52) and low-frequency coupling with posterior alpha power (53), these findings might be confounded with changes in the power of low-frequency aperiodic activity such as the lengthening of timescales found in…”
Oscillatory signatures of monitoring and anticipatory strategies for probabilistic vs deterministic cues (2025, unknown): “This is in line with studies showing that low theta is linked to enhanced executive functions, control, and guidance of the perceptual process ( Bender et al., 2019; Helfrich et al., 2017; Wolinski et al., 2018).”
Multimodal neuroimaging of hierarchical cognitive control. (2024, background): “The emergence of oscillatory activity in neuronal populations is fundamental for orchestrating information processing by temporally locking to environmental information (Fiebelkorn et al., 2018; Helfrich et al., 2017) and potentially binding neuronal representations (Clouter et al., 2017).”
Hierarchical consciousness: the Nested Observer Windows model (2024, background): “…abstraction from smaller-faster observer windows through emergence, a goal-directed observer window in frontal cortex initiates an action plan that is propagated down to its subsystems through submergence (Voytek et al. 2015a, Helfrich et al. 2017, Fiebelkorn et al. 2018, Riddle et al. 2021).”
Targeting neural oscillations with transcranial alternating current stimulation (2021, background): “Additionally, some studies have found interregional phase-amplitude coupling whereby the phase of low-frequency oscillations typically thought to originate in prefrontal cortex modulate the amplitude of neural oscillations in motor or perceptual regions (Helfrich, 2017; Berger, 2019; Voytek, 2015).”
On Natural Attunement: Shared Rhythms Between the Brain and the Environment. (2023, unknown): “Cross-frequency modulations were also related to a top-down predictive mechanism during 10 Hz flicker entrainment of parieto-occipital alpha associated with rhythmic sampling (Helfrich et al., 2017; VanRullen, 2016).”
Cross-frequency coupling of frontal theta and posterior alpha is unrelated to the fidelity of visual long-term memory encoding (2022, background): “…that the posterior alpha and frontal theta form a coupled network when maintaining information in visual working memory (de Vries et al., 2020; Helfrich et al., 2017), with general models of human memory proposing that maintaining information in visual working memory increases the odds of…”
Shared resources between visual attention and visual working memory are allocated through rhythmic sampling (2019, methodology): “Analogous rhythmic accounts have been used to explain the competition between stimuli in conditions of shared attention (Fiebelkorn & Kastner, 2019; Fiebelkorn et al., 2018; Helfrich et al., 2017; Kienitz et al., 2018).”
Functional Specialization in the Attention Network (2019, background): “A uthor M anuscript A uthor M anuscript A uthor M anuscript A uthor M anuscript (Capotosto et al. 2015, Fiebelkorn et al. 2019, Halgren et al. 2017), there is also some evidence linking the frontal cortex to attention-related suppression (Helfrich et al. 2017, Suzuki & Gottlieb 2013).”