Perception/Fallout 2

Perception is one of the seven primary statistics in the SPECIAL system.

Background
In Fallout 2, modifies Sequence, ranged combat distance modifiers and the First Aid, Doctor, Lockpick, Traps and Pilot skills. A player character with higher Perception may notice things that allow them to open up new dialogue options on occasion. It also determines how far away they start from hostilities in random encounters. A combination of the Traps skill and Perception is used to detect traps on the ground. Perception is required for many perks, such as PE 8 for Sniper.

Increasing

 * Perception can be permanently raised by 1 with the Green memory module using ACE, or by taking the Gain Perception perk.
 * Perception can be temporarily raised by 1 with Jet.
 * Mentats can be used to temporarily raise Perception by 2.