perceptible

Outside, there was little traffic in the cul-de-sac, meaning the boys could run around carefree with little perceptible danger.

“Stockton made a very conscious and astute effort to maintain a perceptible culture of safety around a high risk environment.”

But attendees at this party, now scattered on the sidewalk, seemed concerned that a perceptible shift was already underway.

Medical studies suggest that changes are perceptible if they exceed 0.5 standard deviations.

While it’s difficult to interpret the exact size of the effects, they “seem large enough to be perceptible to the players themselves,” said Matti Vuorre, a psychological scientist at Tilburg University in the Netherlands who studies video games and other virtual environments.