Table 1.

Overview of the main computational models. N.B. The WP choice model was additionally fitted to achieved rewards on standard trials and precommitment trials in which subjects rejected precommitment to estimate ι_rewards.

choice models
description models of participants’ choices of the LR without precommitment			fitted to choices on standard trials and precommitment trials in which subjects rejected precommitment
excluded data: precommitment trials in which subjects rejected precommitment
effort task	model parameters		n trials per subject
	MM choice model	WP choice model	mean	s.e.m.	range
	ɛ, γ	ɛ, γ, ιchoice	44.2	1.59	[30,60]
delay task	model parameters		n trials per subject
	MM choice model	WP choice model	mean	s.e.m.	range
	κ, γ	κ, γ, ιchoice	45.1	1.57	[30,60]

precommitment models
description models of participants' precommitment decisions			fitted to precommitment decisions in precommitment trials
excluded data: standard trials
effort task	model parameters
	MM precom model	WP precom model	n trials per subject
	θ, b	θ, b	15
delay task	model parameters
	MM precom model	WP precom model	n trials per subject
	θ, b	θ, b	15