Alertness Testing by BLT

A quick test for alertness? We have that. Let us know what you need for your worksite or group.

That remains true but Bowles-Langley Technology, Inc. has now merged with Predictive Safety, LLC. Together we can offer our customers significant new resources and support. Please check the contacts page for inquiries and support.

Recent News


Oprah on the Brain

The recent issue of Oprah Magazine (Jan 2005) has an interesting series on learning and health. Its surprising what you will find in Oprah which is, I guess, one of the reasons for her success – she is always open to new ideas and approaches to life. Learning is one of the best ways to […]


Fatigue and Performance

If a human testing technology is able to measure fatigue, is it also measuring overall performance? I would say yes it is, because fatigue affects many if not all aspects of performance. In other words, if someone is tired his/her performance is going to degrade across the board. And there is plenty of science to […]


Fatigue Issues in the US Army

Fatigue in the military is a major cause of errors. The following article from Soldiers Online Magazine ( provides an insiders view. I am surprised with the the study results that soldiers can maintain accuracy even when sleep-deprived. I need to see the results. However, obviously, other target related abilities are impaired. This will require […]


Medical Errors

It is now well established that many errors are made by doctors, nurses and interns. Some of these errors can be horrendous. Let me say immediately that doctors, nurses and interns are incredibly dedicated and careful. But the hours they work can be enough to put anyone into a state of exhaustion. Interns, for example, […]


Test Pilots?

If you look at the instrument panel of a modern aircraft you will note that the old analog instruments have been replaced with what is essentially a flat screen. The display is one big computer screen. In other words, almost anything can be shown. For example, we could use part of the display for a […]

BLT is a unique company dedicated to providing new solutions for assessing human performance. Our technologies draw on a wide range of management experience and scientific knowledge to provide customers with solutions that are practical, understandable and useful.