Publications by authors named "J A Burkart"
This study applied alterations in partial pressure of end-tidal carbon dioxide ( ) to challenge dynamic cerebral autoregulation (dCA) responses across the cardiac cycle in both biological sexes. A total of 20 participants (10 females and 10 males; aged 19-34 years) performed 4-min bouts of repeated squat-stand manoeuvres (SSMs) at 0.05 and 0.
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- New research shows that non-human animals, like common marmosets, can combine specific vocal calls into longer sequences, challenging the idea that syntax is unique to human language.
- While many studies have focused on simple two-call combinations, this research explores more complex sequences of up to nine calls, indicating potential internal organization in their communication.
- The findings suggest that analyzing the entire repertoire of animal calls is crucial for understanding their combinatorial abilities and comparing them to language syntax.
Primate brain development is shaped by inputs received during critical periods. These inputs differ between independent and cooperative breeders: In cooperative breeders, infants interact with multiple caregivers. We study how the neurodevelopmental timing of the cooperatively breeding common marmoset maps onto behavioral milestones.
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- - This review synthesizes research using multimodal neuroimaging to study the relationship between neuronal activity and blood flow during tasks, emphasizing the importance of neurovascular coupling and accounting for physiological factors.
- - It includes a comprehensive analysis of 364 studies published before July 31, 2023, focusing on combinations like EEG and fMRI, predominantly during cognitive and visual tasks.
- - The review highlights that most studies poorly controlled for factors like blood pressure and heart rate, underscoring the need for improved methodology and suggesting further research into sex differences and other physiological influences.
Cerebral hemodynamics have been quantified during exercise via transcranial Doppler ultrasound, as it has high-sensitivity to movement artifacts and displays temporal superiority. Currently, limited research exists regarding how different exercise modalities and postural changes impact the cerebrovasculature across the cardiac cycle. Ten participants (4 females and 6 males) ages 20-29 completed three exercise tests (treadmill, supine, and upright cycling) to volitional fatigue.
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