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Update peer_ocu.py #13

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31 changes: 24 additions & 7 deletions mbmvpa/preprocessing/computational_modeling/peer_ocu.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,20 +27,37 @@ def _set_latent_process(self, df_events, param_dict):
U_safe = p_gamble * pow(safe_Hpayoff, rho) + \
(1-p_gamble) * pow(safe_Lpayoff, rho)

self._add('EVsafe',U_safe)

U_risky = p_gamble * pow(risky_Hpayoff, rho) + \
(1-p_gamble) * pow(risky_Lpayoff, rho)

self._add('Util_solo_safe',U_safe)
self._add('Util_solo_risky',U_risky)

if condition == 1: # safe-safe
U_safe += ocu
elif condition == 3: # risky-risky
U_risky += ocu

pRisky = inv_logit(tau * (U_risky - U_safe))

self._add('OCUModifiedEVsafe',U_safe)
self._add('EVrisky',U_safe)
self._add('SUrisky',U_risky - U_safe)

##########################needs additional consideration for fMRI#######################
if choice == 0: # modified utility: U_OCU chosen gamble − U_OCU unchosen gamble, for fMRI extraction
self._add('Util_unchosen_ocu',U_safe) # vmPFC
self._add('Util_unchosen_ocu',U_risky)
elif choice == 1:
self._add('Util_chosen_ocu',U_safe) # vmPFC
self._add('Util_chosen_ocu',U_risky)
# U_ocu_safe and U_ocu_risky should be merged into U_ocu

if condition == 1: # safe-safe
self._add('distance',pRisky) # dACC, insula via interactive effect
elif condition == 3: # risky-risky
self._add('distance',1-pRisky) # dACC, insula via interactive effect
# two distance_ss and distance_rr are essentially the same parameter
#########################################################################################

#self._add('Util_ocu_safe',U_safe)
#self._add('Util_ocu_risky',U_risky)
self._add('Prisky',pRisky)
self._add('Psafe', 1-pRisky)

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