Few topics in neurobiology have attracted as much atten-. tion or resources over the past 20 years as the phenomenon. of LTP (long-term potentiation), a putative mechanism for. the induction of stable memories in the mammalian brain. Long-term potentiation is typically expressed as an in-.
Test items must undergo a review process that can take several years before being included on the MPRE. The test is composed of sixty multiple-choice questions which must be completed in two hours and five minutes. The test is given only three times each year. Each jurisdiction sets its own passing score.
A polygraph test typically takes 2 to 3 hours and requires a skilled, certified examiner. If a person tires easily or is anxious, this amount of time may be excessive. The test is somewhat invasive--sensors are attached to the fingers and chest--and some individuals feel anxious as a result.