Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Christos Constantinidis"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Prefrontal cortical activity represents stimuli in working memory tasks in a low-dimensional manifold that transforms over the course of a trial. Such transformations reflect specific cognitive operations, so that, for example, the rotation
Externí odkaz:
https://doaj.org/article/101a885d42b04a468e38db67cb1f2a6f
Publikováno v:
iScience, Vol 27, Iss 8, Pp 110488- (2024)
Summary: The ability to suppress inappropriate actions and respond rapidly to appropriate ones matures late in life, after puberty. We investigated the development of this capability in monkeys trained to look away from a lone, bright stimulus (antis
Externí odkaz:
https://doaj.org/article/539813d5763045d4b9bc47fe1bef7091
Publikováno v:
iScience, Vol 27, Iss 8, Pp 110453- (2024)
Summary: Executive functions, particularly visual working memory, depend on the prefrontal cortex (PFC). Phase-amplitude coupling (PAC) has been proposed as a measure of synchronized brain oscillations. To study the neural correlates of working memor
Externí odkaz:
https://doaj.org/article/b2f6fe28068e41ce9d339f4e8aa408a8
Publikováno v:
Frontiers in Systems Neuroscience, Vol 18 (2024)
Neurons that generate persistent activity in the primate dorsolateral prefrontal and posterior parietal cortex have been shown to be predictive of behavior in working memory tasks, though subtle differences between them have been observed in how info
Externí odkaz:
https://doaj.org/article/7453d79e220643eca51e83e2bd130462
Autor:
Balbir Singh, Zhengyang Wang, Leen M. Madiah, S. Elizabeth Gatti, Jenna N. Fulton, Graham W. Johnson, Rui Li, Benoit M. Dawant, Dario J. Englot, Sarah K. Bick, Shawniqua Williams Roberson, Christos Constantinidis
Publikováno v:
iScience, Vol 27, Iss 3, Pp 109130- (2024)
Summary: Oscillatory activity in the local field potential (LFP) is thought to be a marker of cognitive processes. To understand how it differentiates tasks and brain areas in humans, we recorded LFPs in 15 adults with intracranial depth electrodes,
Externí odkaz:
https://doaj.org/article/b75c8c84f73d4be591976695a27897cc
Publikováno v:
Communications Biology, Vol 6, Iss 1, Pp 1-12 (2023)
Abstract Local field potential (LFP) power in the gamma frequency is modulated by cognitive variables during task execution. We sought to examine whether such modulations only emerge when task rules are established. We therefore analyzed neuronal fir
Externí odkaz:
https://doaj.org/article/df2efba64c3f47059ef19cd3876b7479
Autor:
Hua Tang, Mitchell R. Riley, Balbir Singh, Xue-Lian Qi, David T. Blake, Christos Constantinidis
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
It remains unclear whether improvements in one cognitive task transfer to other tasks. Here, the authors show that changes in prefrontal neuronal activation, firing rate, and local field potentials induced during active learning of a working memory t
Externí odkaz:
https://doaj.org/article/595ef811838a48b4a1550dec055b28d4
Autor:
David Blake, Fernando Vale, Kendyl Pennington, Chris Banerjee, Tyler Sparks, Katelyn Clemencich, Janki Bava, Sophia Chung, Zhengyang Wang, Sarah Bick, Dario Englot, Christos Constantinidis
Publikováno v:
Brain Stimulation, Vol 16, Iss 1, Pp 364- (2023)
Externí odkaz:
https://doaj.org/article/5b1da91cb7744b1db1a529c27bb3a5a7
Autor:
Gregory E. Alberto, Jennifer R. Stapleton-Kotloski, David C. Klorig, Emily R. Rogers, Christos Constantinidis, James B. Daunais, Dwayne W. Godwin
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-13 (2021)
Identifying causal interactions between brain regions is important to understand its computations. Here the authors present optoMEG, a platform for combining optogenetic techniques with high-resolution magnetic source imaging in nonhuman primates to
Externí odkaz:
https://doaj.org/article/5d2f7b23871d462283ffa17b83b6bcfa
Publikováno v:
iScience, Vol 25, Iss 9, Pp 104929- (2022)
Summary: Learning to perform a new cognitive task induces plasticity of the prefrontal cortex generally involving activation of more neurons and increases in firing rate; however, its effects on single neurons are diverse and complex. We sought to un
Externí odkaz:
https://doaj.org/article/a5de874a73574dacb99c2489bf8f83f7