scholarly journals Imaging Neural Activity in the Primary Somatosensory Cortex Using Thy1-GCaMP6s Transgenic Mice

10.3791/56297 ◽  
2019 ◽  
Author(s):  
Xiaojing Lin ◽  
Tingbao Zhao ◽  
Wenhui Xiong ◽  
Shaonan Wen ◽  
Xiaoming Jin ◽  
...  
Keyword(s):  
Transgenic Mice ◽  
Somatosensory Cortex ◽  
Neural Activity ◽  
Primary Somatosensory Cortex

scholarly journals Behavioral Choice-related Neuronal Activity in Monkey Primary Somatosensory Cortex in a Haptic Delay Task

2012 ◽  
Vol 24 (7) ◽  
pp. 1634-1644 ◽  
Author(s):  
Liping Wang ◽  
Xianchun Li ◽  
Steven S. Hsiao ◽  
Mark Bodner ◽  
Fred Lenz ◽  
...  
Keyword(s):  
Somatosensory Cortex ◽  
Neuronal Activity ◽  
Neural Activity ◽  
Incorrect Response ◽  
Primary Somatosensory Cortex ◽  
Control Task ◽  
Neural Correlate ◽  
Behavioral Choice ◽  
Delay Task ◽  
Number Of Cells

The neuronal activity in the primary somatosensory cortex was collected when monkeys performed a haptic–haptic DMS task. We found that, in trials with correct task performance, a substantial number of cells showed significant differential neural activity only when the monkeys had to make a choice between two different haptic objects. Such a difference in neural activity was significantly reduced in incorrect response trials. However, very few cells showed the choice-only differential neural activity in monkeys who performed a control task that was identical to the haptic–haptic task but did not require the animal to either actively memorize the sample or make a choice between two objects at the end of a trial. From these results, we infer that the differential activity recorded from cells in the primary somatosensory cortex in correct performance reflects the neural process of behavioral choice, and therefore, it is a neural correlate of decision-making when the animal has to make a haptic choice.

Spatiotemporal patterns of neural activity in response to electroacupuncture stimulation in the rodent primary somatosensory cortex

2010 ◽  
Vol 32 (sup1) ◽  
pp. 64-68 ◽  
Author(s):  
Younbyoung Chae ◽  
Hi-Joon Park ◽  
Dae-Hyun Hahm ◽  
Bae-Hwan Lee ◽  
Hun-Kuk Park ◽  
...  
Keyword(s):  
Somatosensory Cortex ◽  
Neural Activity ◽  
Spatiotemporal Patterns ◽  
Primary Somatosensory Cortex

scholarly journals Area 2 of primary somatosensory cortex encodes kinematics of the whole arm

2019 ◽  
Author(s):  
Raeed H Chowdhury ◽  
Joshua I Glaser ◽  
Lee E Miller
Keyword(s):  
Somatosensory Cortex ◽  
Neural Activity ◽  
Motion Tracking ◽  
Body Position ◽  
Critical Role ◽  
Arm Movements ◽  
Primary Somatosensory Cortex ◽  
Passive Movements

AbstractProprioception, the sense of body position, movement, and associated forces, remains poorly understood, despite its critical role in movement. Most studies of area 2, a proprioceptive area of somatosensory cortex, have simply compared neurons’ activities to the movement of the hand through space. By using motion tracking, we sought to elaborate this relationship by characterizing how area 2 activity relates to whole arm movements. We found that a whole-arm model, unlike classic models, successfully predicted how features of neural activity changed as monkeys reached to targets in two workspaces. However, when we then evaluated this whole-arm model across active and passive movements, we found that many neurons did not consistently represent the whole arm over both conditions. These results suggest that 1) neural activity in area 2 includes representation of the whole arm during reaching and 2) many of these neurons represented limb state differently during active and passive movements.

scholarly journals Area 2 of primary somatosensory cortex encodes kinematics of the whole arm

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Raeed H Chowdhury ◽  
Joshua I Glaser ◽  
Lee E Miller
Keyword(s):  
Somatosensory Cortex ◽  
Neural Activity ◽  
Motion Tracking ◽  
Body Position ◽  
Critical Role ◽  
Arm Movements ◽  
Primary Somatosensory Cortex ◽  
Passive Movements

Proprioception, the sense of body position, movement, and associated forces, remains poorly understood, despite its critical role in movement. Most studies of area 2, a proprioceptive area of somatosensory cortex, have simply compared neurons’ activities to the movement of the hand through space. Using motion tracking, we sought to elaborate this relationship by characterizing how area 2 activity relates to whole arm movements. We found that a whole-arm model, unlike classic models, successfully predicted how features of neural activity changed as monkeys reached to targets in two workspaces. However, when we then evaluated this whole-arm model across active and passive movements, we found that many neurons did not consistently represent the whole arm over both conditions. These results suggest that 1) neural activity in area 2 includes representation of the whole arm during reaching and 2) many of these neurons represented limb state differently during active and passive movements.

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