Ramchandar Rao Velivela

...of a person?

teletrafficresearcher

Only if you speak them into a tape recorder.
Or type or dictate them into a computer.

Abmis

Recorded thoughts wouldnt make sense to the person trying to read it afterwards. It jumps between ideas & words too quickly and use images as well.

Kes

Of course, Lie Detectors can record if a person is saying "Yes" when they know the correct answer is "No" based on changes in breathing rate and skin conductivity. It is "no sweat" to tell the honest truth . Also functional MRI's can peer into a human brain and estimate what brain function is operating above steady state, by detecting increases in blood flow to a known brain area. If that can be equated to "yes" or "no" for a given individual, it may replace lie detectors.