Which of the following is a common cognitive effect of cannabis use?

• A. Reduced Inhibitions
• B. Drowsy
• C. Impaired perception of time
• D. Increased Appetite

Answer: (C)

Cannabis commonly alters how the brain processes time, a key cognitive function. When THC is active, it affects brain circuits involved in attention, processing speed, and temporal judgments. That can make durations seem longer or shorter than they really are, so tasks that rely on estimating time or sequencing events feel off. This impairment of time perception is a typical example of cognitive disruption during acute cannabis intoxication.

The other effects listed are real but reflect different kinds of changes: reduced inhibitions describes behavioral disinhibition, drowsiness is a general sedative effect, and increased appetite is a physiological response to cannabis. While these can occur, they don’t represent the cognitive processing changes related to time perception.