Fig. 1: Schematic representation of the experimental setup and procedures.

a Schematic drawing of a mouse drinking water inside the magazine of a modular chamber (Context B). The foot shock output was connected to the grid floor. The foot shock input, two speakers, the infrared (IR) magazine entry sensor, and the lickometer were connected to a microcontroller. The microcontroller was connected to a microcomputer via USB cable. b Schematic representation of the modular chamber arranged in Context A, with a white plastic foam sheet covering the grid floor and a triangular-shaped transparent acrylic ceiling. c Experimental flowchart for each condition (in Rows). Columns represents the three different phases of the procedure (Acclimation, Conditioning, and Test).