Our Research

Recorded neurons glowing red among densely packed cell nuclei in human cortical tissue
Patch-clamp recorded neurons - human neocortex Visit the Gallery

Research Summary

We are working to understand how cells, synapses, and circuits give rise to the incredible computational power of our own human brain.

Using surgically resected patient tissue, we investigate the structural and functional properties of human neurons, directly asking:

  1. How human circuits are functioning?
  2. How they change with patient disease?
  3. Do human circuits use distinct features from other animals?

Our core techniques are:

Multicellular patch-clamp

By recording from multiple neurons at once, we determine the properties of functioning synapses and microcircuits.

Cell and synapse imaging

Confocal and super-resolution imaging allow detailed reconstruction of cell and synaptic architectures.

Bioinformatic data integration

We integrate our findings with the wealth of open resources for molecular insight into circuit function.

Our recent work mapped the specific connectivity rules of human hippocampal CA3, explored cell-specific wiring between subtypes of CA3 neurons, and molecularly identified these subtypes across species.

Publications

Featured papers
Publications list

2026

26

Hippocampal CA3 forms a two-layer network of molecularly distinct cell types in mice and humans

Morse-Mora RJ, Ben-Simon Y, Arcot Jayaram S, Rössler K, Jonas P*, Watson JF*. Preprint.

25

Developmental emergence of sparse and structured synaptic connectivity in the hippocampal CA3 memory circuit

Vargas-Barroso V, Watson JF, Navas-Olive A, Schlögl A, Jonas P. Nature Communications.

2025

24

'Mini analysis' is an unreliable reporter of synaptic changes.

Greger IH, Watson JF*. Journal of Physiology.

23

Cell-specific wiring routes information flow through hippocampal CA3.

Watson JF*, Vargas-Barroso V, Jonas P*. Cell Reports.

22

Human hippocampal CA3 uses specific functional connectivity rules for efficient associative memory.

Watson JF*, Vargas-Barroso V, Morse-Mora R, Navas-Olive A, Tavakoli M, Danzl J, Tomschik M, Rössler K, Jonas P*. Cell.

2024

21

DNA Cloning.

Watson JF, Arroyo-Urea S, García-Nafría J. Handbook of Molecular Biotechnology, Chapter 7.

2023

19

Imaging brain tissue architecture across millimeter to nanometer scales.

Michalska JM, Lyudchik J, Velicky P, Štefaničková H, Watson JF, Cenameri A, Sommer C, Amberg N, Venturino A, Roessler K, Czech T, Höftberger R, Siegert S, Novarino G, Jonas P, Danzl JG. Nature Biotechnology.

18

Dense 4D nanoscale reconstruction of living brain tissue.

Velicky P, Miguel E, Michalska JM, Lyudchik J, Wei D, Lin Z, Watson JF, Troidl J, Beyer J, Ben-Simon Y, Sommer C, Jahr W, Cenameri A, Broichhagen J, Grant SGN, Jonas P, Novarino G, Pfister H, Bickel B, Danzl JG. Nature Methods.

17

Modulatory mechanisms of TARP γ8-selective AMPA receptor therapeutics.

Zhang D†, Lape R†, Shaikh S, Kohegyi B, Watson JF, Cais O, Nakagawa T, Greger IH. Nature Communications.

16

Molecular Cloning using in vivo DNA assembly.

Arroyo-Urea S, Watson JF, García-Nafría J. Methods in Molecular Biology.

2022

15

Mechanisms underlying TARP modulation of the GluA1/2-γ8 AMPA receptor.

Herguedas B†, Kohegyi BK†, Dohrke JN, Watson JF, Zhang D, Ho H, Shaikh S, Lape R, Krieger JM, Greger IH. Nature Communications.

2021

13

Gating transitions and modulation of a hetero-octameric AMPA glutamate receptor.

Zhang D, Watson JF, Matthews PM, Cais O, Greger IH. Nature.

2020

12

AMPA Receptors.

Pinggera A, Watson JF, Greger IH. Wiley eLS Article.

11

Characterising the binding and function of TARP γ8-selective AMPA receptor modulators.

Dohrke JN, Watson JF, Birchall K, Greger IH. Journal of Biological Chemistry.

10

An inhalation anaesthesia approach for neonatal mice allowing streamlined stereotactic injection in the brain.

Ho H, Fowle A, Coetzee M, Greger IH*, Watson JF*. Journal of Neuroscience Methods.

2019

8

Architecture of the heteromeric GluA1/2 AMPA receptor in complex with the auxiliary subunit TARP γ8.

Herguedas B, Watson JF, Ho H, Cais O, García-Nafría J, Greger IH. Science.

2017

5

Characterisation of Nav1.7 functional expression in rat dorsal root ganglia neurons by using an electrical field stimulation assay.

Fouillet A, Watson JF, Piekarz A, Huang X, Li B, Priest B, Nisenbaum E, Sher E, Ursu D. Molecular Pain.

4

A point mutation in the ion conduction pore of AMPA receptor GRIA3 causes dramatically perturbed sleep patterns as well as intellectual disability.

Davies B, Brown LA, Cais O, Watson J, Clayton AJ, Chang VT, Biggs D, Preece C, Hernandez-Pliego P, Krohn J, Bhomra A, Twigg SRF, Rimmer A, Kanapin A, WGS500 Consortium, Sen A, Zaiwalla Z, McVean G, Foster R, Donnelly P, Taylor JC, Blair E, Nutt D, Aricescu AR, Greger IH, Peirson SN, Flint J, Martin HC. Human Molecular Genetics.

3

2016

2

IVA cloning: A single-tube universal cloning system exploiting bacterial In Vivo Assembly.

García-Nafría J†, Watson JF†, Greger IH. Scientific Reports.

1

The dynamic AMPA receptor extracellular region: a platform for synaptic protein interactions.

García-Nafría J, Herguedas B, Watson JF, Greger IH. Journal of Physiology.