Functional ultrasound imaging explained from scratch, with a Python tutorial

A post on the Hacker News front page on October 1, 2026 walks through functional ultrasound imaging (fUSI) from first principles: how it captures plane-wave images at over 1 kHz, tracks speckle changes, and reads the hemodynamic response to neural activity. The post says the signal change can reach as high as 20%, far above the few-percent BOLD signal of fMRI. It covers principles and a tutorial only; no follow-up work is mentioned.

Written by AI from the coverage · updated 47 minutes ago

Not enough continuous observations to draw a trend yet.