Visualization of plasticity in fear-evoked calcium signals in midbrain dopamine neurons.
Visualization of plasticity in fear-evoked calcium signals in midbrain dopamine neurons.
复制标题
DOI:
10.1101/lm.036079.114
复制
发表时间:
2014-11
期刊:
影响因子:
--
通讯作者:
Zweifel LS
中科院分区:
文献类型:
--
作者:
Gore BB;Soden ME;Zweifel LS
Dopamine is broadly implicated in fear-related processes, yet we know very little about signaling dynamics in these neurons during active fear conditioning. We describe the direct imaging of calcium signals of dopamine neurons during Pavlovian fear conditioning using fiber-optic confocal microscopy coupled with the genetically encoded calcium indicator GCaMP3. We observed calcium transients in a subset of dopamine neurons to an unconditioned fear stimulus on the first day of Pavlovian fear conditioning. On the second day, calcium transients occurred in response to conditioned and unconditioned stimuli. These results demonstrate plasticity in dopamine neuron calcium signals and the occurrence of activity-dependent processes in these neurons during fear conditioning.
登录
查看更多内容
影响因子:
4.7
作者:
Lammel S;Lim BK;Malenka RC
通讯作者:
Malenka RC
影响因子:
64.8
作者:
Cohen, Jeremiah Y.;Haesler, Sebastian;Vong, Linh;Lowell, Bradford B.;Uchida, Naoshige
通讯作者:
Uchida, Naoshige
影响因子:
2.5
作者:
SCHULTZ, W;ROMO, R
通讯作者:
ROMO, R
影响因子:
3.7
作者:
Wang DV;Tsien JZ
通讯作者:
Tsien JZ
影响因子:
16.2
作者:
Bromberg-Martin, Ethan S.;Matsumoto, Masayuki;Hikosaka, Okihide
通讯作者:
Hikosaka, Okihide