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Herein, a single multi\u2010gate ion\u2010gel graphene transistor (MIG\u2010GFET) is demonstrated to emulate key operations of the direction\u2010selective ganglion cell (DSGC) and starburst amacrine cell (SAC) microcircuit. Spatially distributed gates created artificial dendritic compartments whose ionic dynamics enabled nonlinear summation of sequential inputs, yielding intrinsic direction selectivity without algorithmic post\u2010processing. An oppositely biased inhibitory gate reproduced SAC\u2010like null\u2010side inhibition and yielded a band\u2010pass velocity response with a tunable preferred speed\u2014closely mirroring the spatiotemporal filtering properties underlying direction\u2010 and speed\u2010dependent firing in biological DSGCs. This velocity selectivity enables the MIG\u2010GFET to function as an analog motion filter. By suppressing ego\u2010motion\u2013induced global scene jitter within a defined frequency band, the device achieves on\u2010sensor image stabilization with lower latency and power consumption than digital post\u2010processing. Therefore, dendritic\u2010level computation can be embedded directly into a graphene transistor, offering a path toward vision hardware where sensing and early neural processing are co\u2010localized at the device level. This compact, low\u2010power approach is compatible with focal\u2010plane array integration and broad applications in real\u2010time motion analysis.<\/jats:p>","DOI":"10.1002\/smll.75262","type":"journal-article","created":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T06:08:57Z","timestamp":1786687737000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Retinomorphic Graphene Transistor Implementing Direction\u2010 and Velocity\u2010Selective Computation for In\u2010Sensor Image Stabilization"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-5672-6467","authenticated-orcid":false,"given":"Jun Ha","family":"Park","sequence":"first","affiliation":[{"name":"Center For Semiconductor Technology Korea Institute of Science and Technology  Seoul South Korea"},{"name":"School of Electrical Engineering Korea University  Seoul South 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