Effects of loss aversion on neural responses to loss outcomes: An event-related potential study

Kokmotou, K, Cook, S, Xie, Y, Wright, H, Soto, V, Fallon, N ORCID: 0000-0003-1451-6983, Giesbrecht, T, Pantelous, A ORCID: 0000-0001-5738-1471 and Stancak, A
(2017) Effects of loss aversion on neural responses to loss outcomes: An event-related potential study. Biological Psychology, 126. 30 - 40.

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Loss aversion is the tendency to prefer avoiding losses over acquiring gains of the same amount. To shed light on the spatio-temporal processes underlying loss aversion, we analysed the associations between individual loss aversion and electrophysiological responses to loss and gain outcomes in a monetary gamble task. Electroencephalographic feedback-related negativity (FRN) was computed in 29 healthy participants as the difference in electrical potentials between losses and gains. Loss aversion was evaluated using non-linear parametric fitting of choices in a separate gamble task. Loss aversion correlated positively with FRN amplitude (233-263ms) at electrodes covering the lower face. Feedback related potentials were modelled by five equivalent source dipoles. From these dipoles, stronger activity in a source located in the orbitofrontal cortex was associated with loss aversion. The results suggest that loss aversion implemented during risky decision making is related to a valuation process in the orbitofrontal cortex, which manifests during learning choice outcomes.

Item Type: Article
Uncontrolled Keywords: Decision making, Loss aversion, Reward and punishment, Orbitofrontal cortex, Feedback-related negativity
Depositing User: Symplectic Admin
Date Deposited: 25 Apr 2017 06:45
Last Modified: 16 Apr 2021 11:19
DOI: 10.1016/j.biopsycho.2017.04.005
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3007111