Afferent-induced changes in rhythmic motor programs in the feeding circuitry of aplysia.
Afferent-induced changes in rhythmic motor programs in the feeding circuitry of aplysia.
复制标题
海兔进食回路中节律性运动程序的传入诱发变化。
DOI：
10.1152/jn.00137.2004
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Cropper,ElizabethC
中科院分区：
文献类型：
--
作者：
Shetreat-Klein,AvnielN;Cropper,ElizabethC
A manipulation often used to determine whether a neuron plays a role in the generation of a motor program involves injecting current into the cell during rhythmic activity to determine whether activity is modified. We perform this type of manipulation to study the impact of afferent activity on feeding-like motor programs inAplysia. We trigger biting-like programs and manipulate sensory neurons that have been implicated in producing the changes in activity that occur when food is ingested, i.e., when bites are converted to bite-swallows. Sensory neurons that are manipulated are the radula mechanoafferent B21 and the retraction proprioceptor B51. Data suggest that both cells are peripherally activated during radula closing/retraction when food is ingested. We found that phasic subthreshold depolarization of a single sensory neuron can significantly prolong radula closing/retraction, as determined by recording both from interneurons (e.g., B64), and motor neurons (e.g., B15 and B8). Additionally, afferent activity produces a delay in the onset of the subsequent radula opening/protraction, and increases the firing frequency of motor neurons. These are the changes in activity that are seen when food is ingested. These results add to the growing data that implicate B21 and B51 in bite to bite-swallow conversions and indicate that afferent activity is important during feeding inAplysia.
登录
查看更多内容
已鉴定的组胺能神经元可以通过突触前抑制调节海兔颊脑中间神经元的输出。
DOI：
10.1523/jneurosci.08-01-00049.1988
发表时间：
1988
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Chiel,HJ;Kupfermann,I;Weiss,KR
通讯作者：
Weiss,KR
影响因子：
56.9
作者：
DELCOMYN, F
通讯作者：
DELCOMYN, F
影响因子：
2.9
作者：
T. Teyke;S. Rosen;K. R. Weiss;I. Kupfermann
通讯作者：
T. Teyke;S. Rosen;K. R. Weiss;I. Kupfermann
影响因子：
2.5
作者：
Hurwitz, I;Neustadter, D;Susswein, AJ
通讯作者：
Susswein, AJ
多突触通路在海兔鳃和虹吸撤回反射的介导和可塑性中的贡献：差异调节的证据
影响因子：
6.2
作者：
L. Trudeau;V. Castellucci
通讯作者：
V. Castellucci