Mehrdad Ramezani

Flexible 3D multimodal organoid interface reveals functional subnetworks and coordinated circuit activity in cortical organoids

This paper introduces INFORM, a multimodal interface for cortical organoids that enables long-term recordings and modulation of neural activity, revealing functional subnetworks and inhibitory signaling.

Cellular Calcium Activity at Depth Predicted from Surface Potential Recordings using Ultra-high Density Transparent Graphene Arrays

The paper develops high-density transparent graphene electrodes to record neural activity from deeper cortical layers and decodes calcium activity from surface potentials using dimensionality reduction and neural networks.

E-Cannula reveals anatomical diversity in sharp-wave ripples as a driver for the recruitment of distinct hippocampal assemblies

The paper introduces E-Cannula, a tool for simultaneous electrical and optical recording in the hippocampus, revealing anatomical diversity in sharp-wave ripples and their association with distinct cell assemblies.

Decoding of cortex-wide brain activity from local recordings of neural potentials

This study decodes large-scale cortical activity from local surface potentials using a recurrent neural network, showing that surface potentials contain rich information about neural activity across multiple regions.