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Updated: Jun 30, 2026

Two-photon Calcium Imaging in Neuronal Dendrites in Brain Slices
Published on: March 15, 2018
Calcium signaling in dendrites and spines: practical and functional considerations
Michael J Higley1, Bernardo L Sabatini
1Howard Hughes Medical Institute, Department of Neurobiology, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA.
Calcium imaging reveals complex neuronal signaling. This review details recent advances in understanding dendritic calcium (Ca) signaling and offers a framework for interpreting Ca imaging data in neuroscience research.
Area of Science:
- Neuroscience
- Cell Biology
- Biophysics
Background:
- Intracellular calcium (Ca) concentration changes are crucial for neuronal functions.
- Synaptic and suprathreshold neuronal activity involve diverse Ca sources.
- Dendritic Ca signaling exhibits spatial and temporal specificity.
Purpose of the Study:
- To review recent progress in understanding dendritic Ca signaling using imaging methods.
- To present a quantitative framework for interpreting Ca imaging data.
- To highlight the importance of careful experimental methodology and data interpretation.
Main Methods:
- Review of recent scientific literature on Ca imaging techniques.
- Discussion of advancements in Ca imaging for studying neuronal signaling.
- Presentation of a quantitative framework for fluorescent indicator-based Ca measurements.
Main Results:
- Ca imaging techniques have significantly advanced the understanding of dendritic Ca signaling.
- Complex interactions between Ca sources contribute to precise neuronal signaling.
- A quantitative framework aids in the experimental measurement and interpretation of intracellular Ca changes.
Conclusions:
- Careful methodology and interpretation are essential for Ca imaging studies.
- Recent imaging methods provide insights into the spatial and temporal dynamics of dendritic Ca signaling.
- The proposed framework supports robust quantitative analysis of Ca signals.
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