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END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20330313T030000 RDATE:20331106T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20340312T030000 RDATE:20341105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20350311T030000 RDATE:20351104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20360309T030000 RDATE:20361102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20370308T030000 RDATE:20371101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:a32098f74061ebc040600d2664b0a992 CATEGORIES:RuCCS Colloquia:Spring 2019 CREATED:20190114T102304 SUMMARY:"Cortical circuits for sensory-guided decision-making", David Margolis (Cell Biology and Neuroscience, Rutgers) LOCATION:Busch Campus\, Psych 101 DESCRIPTION:Cortical circuits for sensory-guided decision-makingAbstract: The brain con stantly integrates sensory inputs to guide behavior. Recent work in the the rodent whisker-to-barrel cortex system has revealed close links between ea rly somatosensory processing and motor control. This talk highlights experi ments investigating the function of neuronal projections from primary somat osensory cortex (S1) to specific downstream targets, including the dorsal s triatum. Using projection-specific optogenetic stimulation and electrophysi ological recordings of identified cell types, we have found that cortical p rojections from S1 and from primary motor cortex (M1) differentially innerv ate spiny projection neurons and interneurons in the dorsal striatum, and e xert opposing effects on behavior. Striatal parvalbumin-expressing (PV) int erneurons play a prominent role in mediating these effects. The opposing ef fects of S1 and M1 on behavior via distinct influences on striatal circuitr y have important implications for understanding the role of corticostriatal function in behavior choice, and potential mechanisms of disease states.\n X-ALT-DESC;FMTTYPE=text/html:
Abs tract: The brain constantly integrates sensory inputs to guide beh avior. Recent work in the the rodent whisker-to-barrel cortex system has re vealed close links between early somatosensory processing and motor control . This talk highlights experiments investigating the function of neuronal p rojections from primary somatosensory cortex (S1) to specific downstream ta rgets, including the dorsal striatum. Using projection-specific optogenetic stimulation and electrophysiological recordings of identified cell types, we have found that cortical projections from S1 and from primary motor cort ex (M1) differentially innervate spiny projection neurons and interneurons in the dorsal striatum, and exert opposing effects on behavior. Striatal pa rvalbumin-expressing (PV) interneurons play a prominent role in mediating t hese effects. The opposing effects of S1 and M1 on behavior via distinct in fluences on striatal circuitry have important implications for understandin g the role of corticostriatal function in behavior choice, and potential me chanisms of disease states.
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