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Auditory processing up to cortex is maintained during sleep spindles

Author(s): Jourde HR; Coffey EBJ;

Sleep spindles are transient 11-16 Hz brain oscillations generated by thalamocortical circuits. Their role in memory consolidation is well established, but how they play a role in sleep continuity and protection of memory consolidation against interference is unclear. One theory posits that spindles or a neural refractory period following their offset act ...

Article GUID: 39588317


Challenges and Approaches in the Study of Neural Entrainment

Author(s): Duecker K; Doelling KB; Breska A; Coffey EBJ; Sivarao DV; Zoefel B;

When exposed to rhythmic stimulation, the human brain displays rhythmic activity across sensory modalities and regions. Given the ubiquity of this phenomenon, how sensory rhythms are transformed into neural rhythms remains surprisingly inconclusive. An influential model posits that endogenous oscillations entrain to external rhythms, thereby encoding envi ...

Article GUID: 39358026


Cortical-subcortical interactions underlie processing of auditory predictions measured with 7T fMRI

Author(s): Ara A; Provias V; Sitek K; Coffey EBJ; Zatorre RJ;

Perception integrates both sensory inputs and internal models of the environment. In the auditory domain, predictions play a critical role because of the temporal nature of sounds. However, the precise contribution of cortical and subcortical structures in these processes and their interaction remain unclear. It is also unclear whether these brain interac ...

Article GUID: 39087881


Approaches to studying emotion using physiological responses to spoken narratives: A scoping review

Author(s): Savard MA; Merlo R; Samithamby A; Paas A; Coffey EBJ;

Narratives are effective tools for evoking emotions, and physiological measurements provide a means of objectively assessing emotional reactions - making them a potentially powerful pair of tools for studying emotional processes. However, extent research combining emotional narratives and physiological measurement varies widely in design and application, ...

Article GUID: 38961524


Overcoming boundaries: Interdisciplinary challenges and opportunities in cognitive neuroscience

Author(s): Brignol A; Paas A; Sotelo-Castro L; St-Onge D; Beltrame G; Coffey EBJ;

Cognitive neuroscience has considerable untapped potential to translate our understanding of brain function into applications that maintain, restore, or enhance human cognition. Complex, real-world phenomena encountered in daily life, professional contexts, and in the arts, can also be a rich source of information for better understanding cognition, which ...

Article GUID: 38750788


The neurophysiology of closed-loop auditory stimulation in sleep: A magnetoencephalography study

Author(s): Jourde HR; Merlo R; Brooks M; Rowe M; Coffey EBJ;

Closed-loop auditory stimulation (CLAS) is a brain modulation technique in which sounds are timed to enhance or disrupt endogenous neurophysiological events. CLAS of slow oscillation up-states in sleep is becoming a popular tool to study and enhance sleep's functions, as it increases slow oscillations, evokes sleep spindles and enhances memory consoli ...

Article GUID: 37675803


Decoding of Envelope vs. Fundamental Frequency During Complex Auditory Stream Segregation

Author(s): Greenlaw KM; Puschmann S; Coffey EBJ;

Hearing-in-noise perception is a challenging task that is critical to human function, but how the brain accomplishes it is not well understood. A candidate mechanism proposes that the neural representation of an attended auditory stream is enhanced relative to background sound via a combination of bottom-up and top-down mechanisms. To date, few studies ha ...

Article GUID: 37215227


The Portiloop: A deep learning-based open science tool for closed-loop brain stimulation

Author(s): Valenchon N; Bouteiller Y; Jourde HR; L' Heureux X; Sobral M; Coffey EBJ; Beltrame G;

Closed-loop brain stimulation refers to capturing neurophysiological measures such as electroencephalography (EEG), quickly identifying neural events of interest, and producing auditory, magnetic or electrical stimulation so as to interact with brain processes precisely. It is a promising new met ...

Article GUID: 35994482


Sleep affects higher-level categorization of speech sounds, but not frequency encoding

Author(s): Chapelle A; Savard MA; Restani R; Ghaemmaghami P; Thillou N; Zardoui K; Chandrasekaran B; Coffey EBJ;

Sleep can increase consolidation of new knowledge and skills. It is less clear whether sleep plays a role in other aspects of experience-dependent neuroplasticity, which underlie important human capabilities such as spoken language processing. Theories of sensory learning differ in their predicti ...

Article GUID: 35732089


Sigma oscillations protect or reinstate motor memory depending on their temporal coordination with slow waves

Author(s): Nicolas J; King BR; Levesque D; Lazzouni L; Coffey EBJ; Swinnen S; Doyon J; Carrier J; Albouy G;

Targeted memory reactivation (TMR) during post-learning sleep is known to enhance motor memory consolidation but the underlying neurophysiological processes remain unclear. Here, we confirm the beneficial effect of auditory TMR on motor performance. At the neural level, TMR enhanced slow wave (SW ...

Article GUID: 35726850


Specificity of Affective Responses in Misophonia Depends on Trigger Identification

Author(s): Savard MA; Sares AG; Coffey EBJ; Deroche MLD;

Individuals with misophonia, a disorder involving extreme sound sensitivity, report significant anger, disgust, and anxiety in response to select but usually common sounds. While estimates of prevalence within certain populations such as college students have approached 20%, it is currently unknown what percentage of people experience misophonic responses ...

Article GUID: 35692416


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