Psychoactive drugs can impair the judgment of time. Stimulants can lead both humans and rats to overestimate time intervals, while depressants can have the opposite effect. The level of activity in the brain of neurotransmitters such as dopamine and norepinephrine may be the reason for this. Such chemicals will either excite or inhibit the firing of neurons in the brain, with a greater firing rate allowing the brain to register the occurrence of more events within a given interval (speed up time) and a decreased firing rate reducing the brain's capacity to distinguish events occurring within a given interval (slow down time). COUNT 5
QSN1 What type of drugs can impair the judgement of time? ANS1 Psychoactive drugs QSN2 Stimulants lead humans to overestimate what? ANS2 time intervals QSN3 What causes humans to underestimate time intervals? ANS3 depressants QSN4 The level of what is the reason stimulants and depressants change human perceptions of time? ANS4 The level of activity in the brain of neurotransmitters QSN5 Such chemicals do what to the firing of the brain's neurons? ANS5 either excite or inhibit the firing of neurons