Fritjof Helmchen - Brain dynamics related to short-term memory and learning
From Katie Gentilello on February 21st, 2021
Through the combination of in vivo optical imaging and chronic expression of genetically encoded calcium indicators it is now feasible to directly 'watch' brain activity patterns related to specific behaviors. I will introduce wide-field calcium imaging and multi-fiber photometry as two complementary methods that enable measurements across mouse neocortex and in large sets of subcortical regions, respectively. Specific patterns of brain-wide signal flow that occur in mice performing whisker-based or auditory sensory discrimination tasks will be discussed, highlighting salient patterns related to short-term memory. In addition, taking advantage of chronic measurements over weeks, I will present salient changes in brain dynamics that relate to task learning.