Table 1. Description of diffusion model parameters and parameter dependencies.

Parameter dependencies (•, –, S, C) for all group- and subject-level parameters (rows) are listed for each of the four hierarchical models (columns). •, free parameter with no dependencies; –, fixed parameter; S, parameter dependency on stimulus category (e.g. group and subject level parameters estimated separately for face and house stimuli); C, parameter dependency on cue type (e.g. group and subject level parameters estimated for all five cue types).

Parameters		Models
Group	Subject	PBM	DBM	DBM+	MSM
μa, σa	ai	•	•	•	•
μv, σv	vi	S	S, C	S, C	S, C
μt, σt	teri	•	•	•	•
μz, σz	zi	C	–	•	C
sv		•	•	•	•
st		•	•	•	•
sz		•	•	•	•