DirectRT
What’s new in DirectRT 2027
The precision reaction-time software, rebuilt for modern Windows — with genuinely new stimulus types, a sturdier foundation, and the same study files you already use.
Rebuilt sample studies
A numbered, work-through-in-order set of sample studies — each with a plain-English READ-ME, an on-screen intro, modern styles, and full-HD layouts — so you can learn DirectRT by example and adapt a working study to your own.
Web-page stimuli
Show a designed web page as a stimulus — rich layouts and styling you couldn’t build from plain text or a single image. It appears as a fixed snapshot during the trial (not a live page you click around in).
Modern image formats
Use PNG, JPEG, and GIF images directly — no converting everything to bitmaps first.
Call your TTL box by name
Name your trigger device once, then refer to it by that name in any study — no more tracking port numbers to mark EEG, eye-trackers, or other lab gear.
Timed trigger markers during a video
Fire a timed sequence of TTL markers at exact moments — for example, at set points during a video — so your recordings line up with what’s on screen.
Runs on Windows 11
The display failure that could black-screen a session on Windows 10 and 11 is gone, and triggering no longer needs a special hardware driver — so DirectRT runs on today’s locked-down lab machines.
Activate online in seconds
License a machine online in seconds, with a 30-day offline grace period so a dropped connection never interrupts a session. A standard user can do it without admin rights.
Every computer on your license
Licenses with more than one seat now activate each computer on their own. If you were ever blocked setting up a second machine, just install this update and relaunch DirectRT — it activates itself, with nothing to email in.
Smoother video
Video plays more reliably: line up several clips, prepared between trials so playback starts clean right at onset. Prefer MP4.
Easier voice-key setup
Measuring spoken-response times is simpler — pick your microphone and check your levels before you run anyone.
Text in any language
Text in any script — including right-to-left languages like Arabic and Hebrew — now renders properly, with no workarounds. Ideal for cross-cultural research.
Triggers on modern hardware
Sending TTL triggers to EEG and other equipment works over a standard USB connection — no parallel port and no special driver — so it runs on locked-down Windows 11.
Sharper response timing
Each response is timestamped with a high-resolution clock on its own dedicated thread, so DirectRT adds virtually no delay of its own. Your keyboard’s own USB polling still sets the floor — for the tightest millisecond precision, pair DirectRT with a button box over TTL.
Clean stimulus onset
Each stimulus is drawn in a single, tear-free flip locked to the monitor’s refresh, so onset timing stays clean and consistent on modern displays.
Sharp on modern displays
Runs at your current screen resolution and looks crisp on high-resolution and multi-monitor setups. If an older study needs a specific size, you can still set it in the style.
Built-in timing check
An optional per-session report tells you how cleanly your study actually ran — refresh rate, onset accuracy, and any dropped frames — so you can trust your numbers.
Mouse & touchscreen responses
Define clickable or tappable response zones on screen and score them just like key presses.
One simple, modern installer
A single, signed installer — now with a fresh, branded look (a cleaner license page and side panel matching the Empirisoft website) — sets up everything DirectRT needs, friendly for locked-down lab computers, with no special drivers to install.
Modern tools
A refreshed style editor and hardware tester, plus a “check my input file” dry-run that catches mistakes before you run participants, and a one-click “report a problem.”
Try your triggers first
The built-in hardware tester lets you fire and check triggers safely before a real session — if it works in the tester, it works in your study.
Shows its progress
Setup now shows what it’s doing as it installs — the file it’s copying and a percentage — so the longer steps no longer look like they’ve frozen.
Faster upgrades
Installing over an earlier 2027 build is much quicker — setup leaves the shortcuts it’s about to reinstall in place instead of tearing them all down first. On a test upgrade that dropped from just under two minutes to under ten seconds.
Won’t clash with DirectRT 2020
If DirectRT 2020 is still on the machine, setup stops and asks you to remove it first — the two share program names and the .drt file type, so they can’t coexist. Which version to remove is your call, not ours.
Not in 2027 yet. A few older options aren’t back yet — joysticks, serial button boxes, and live interactive web pages during a trial. Mouse and touchscreen responses work. If your study depends on something here,
ask us before you upgrade.