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Sleep state influences early sound encoding at cortical but not subcortical levels

Author(s): Jourde HR; Coffey EBJ;

In sleep, the brain balances protecting processes like memory consolidation with preserving responsiveness to significant external stimuli. Although reductions in higher-level auditory processes during deeper sleep have been described, the sleep-dependent changes across levels of auditory hierarchy, particularly as regards early sound representations, rem ...

Article GUID: 40623839


Neurophysiological effects of targeting sleep spindles with closed-loop auditory stimulation

Author(s): Jourde HR; Sobral M; Beltrame G; Coffey EBJ;

Sleep spindles are neural events unique to nonrapid eye movement sleep that play key roles in memory reactivation and consolidation. However, much of the evidence for their function remains correlational rather than causal. Closed-loop brain stimulation uses real-time monitoring of neural events (often via electroencephalography; EEG) to deliver precise a ...

Article GUID: 40626105


Personalizing brain stimulation: continual learning for sleep spindle detection

Author(s): Sobral M; Jourde HR; Marjani Bajestani SE; Coffey EBJ; Beltrame G;

Personalized closed-loop brain stimulation, in which algorithms used to detect neural events adapt to a user's unique neural characteristics, may be crucial to enable optimized and consistent stimulation quality for both fundamental research and clinical applications. Precise stimulation of sleep spindles-transient patterns of brain activity that occu ...

Article GUID: 40609549


Sound degradation type differentially affects neural indicators of cognitive workload and speech tracking

Author(s): Gagné N; Greenlaw KM; Coffey EBJ;

Hearing-in-noise (HIN) is a challenging task that is essential to human functioning in social, vocational, and educational contexts. Successful speech perception in noisy settings is thought to rely in part on the brain's ability to enhance neural representations of attended speech. In everyday HIN situations, important features of speech (i.e., pitch ...

Article GUID: 40412301


Auditory working memory mechanisms mediating the relationship between musicianship and auditory stream segregation

Author(s): Liu M; Arseneau-Bruneau I; Farrés Franch M; Latorre ME; Samuels J; Issa E; Payumo A; Rahman N; Loureiro N; Leung TCM; Nave KM; von Handorf KM; Hoddinott JD; Coffey EBJ; Grahn J; Zatorre RJ;

This study investigates the interactions between musicianship and two auditory cognitive processes: auditory working memory (AWM) and stream segregation. The primary hypothesis is that AWM could mediate a relationship between musical training and enhanced stream segregation capabilities. Two grou ...

Article GUID: 40226491


Toward cognitive models of misophonia

Author(s): Savard MA; Coffey EBJ;

Misophonia is a disorder in which specific common sounds such as another person breathing or chewing, or the ticking of a clock, cause an atypical negative emotional response. Affected individuals may experience anger, irritability, annoyance, disgust, and anxiety, as well as physiological autonomic responses, and may find everyday environments and contex ...

Article GUID: 39874936


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


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