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DESCRIPTION:Rapid dynamics of dorsal raphe serotonin neurons regulate the s
 trength of visual attention\n\nJonas Lehnert (QLS Graduate)\, University o
 f Ottawa\n	Tuesday April 28\, 12-1pm\n	Zoom Link: https://mcgill.zoom.us/j/8
 7078928687\n	In Person: 550 Sherbrooke\, Room 189\n	\n	Abstract: Every moment
 \, a spotlight of attention roams the visual field to enhance detection of
  salient stimuli. While recent work has revealed how the brain selects sal
 ient relevant stimuli (attentional focus)\, it remains unclear how attenti
 on is modulated to suit fluctuating target salience or internal needs (att
 entional strength). Drawing on recently published work combining optical r
 ecordings and targeted perturbations in mice performing a cued detection t
 ask\, I will present circuit-level evidence that rapid serotonergic dynami
 cs selectively regulate attentional strength. When combined with computati
 onal modeling of cortical dorsal raphe serotonin signaling\, these finding
 s suggest that the brain independently controls attentional strength and a
 ttentional focus and identify rapid serotonergic neuromodulation as a new 
 regulator of attentional strength.\n\nJonas is a recent QLS graduate who i
 s currently a postdoc in the Béïque Lab\, Department of Cellular and Molec
 ular Medicine\, University of Ottawa.\n
DTSTART:20260428T160000Z
DTEND:20260428T170000Z
SUMMARY:QLS Seminar Series - Jonas Lehnert
URL:https://www.mcgill.ca/channels/channels/event/qls-seminar-series-jonas-
 lehnert-372411
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