Associations Between Delay Discounting and Connectivity of the Valuation-control System in Healthy Young Adults
Kavinash Loganathan, Jinglei Lv, Vanessa Cropley, Eric Tatt Wei Ho, Andrew Zalesky
Neuroscience | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2021
The process of valuation assists in determining if an object or course of action is rewarding. Delay discounting is the observed decay of a rewards' subjective value over time. Encoding the subjective value of rewards across a spectrum has been attributed to brain regions belonging to the valuation and executive control systems. The valuation system (VS) encodes reward value over short and long delays, influencing reinforcement learning and reward representation. The executive control system (ECS) becomes more active as choice difficulty increases, integrating contextual and mnemonic information with salience signals in the modulation of decision-making. Here, we aimed to identify resting-st..View full abstract
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Awarded by Australian National Health and Medical Research Council (NHMRC) Investigator Grant
Kavinash Loganathan is grateful to IBROAPRC and Yayasan Universiti Teknologi PETRONAS (YUTP) for funding to undertake this study. Eric Tatt Wei Ho gratefully acknowledges the Ministry of Higher Education, Malaysia for funding through the Higher Institution Center of Excellence (HI-CoE) program awarded to the Center for Intelligent Signal & Imaging Research, Universiti Teknologi PETRONAS and the YUTP-Fundamental Research Grant award. Vanessa Cropley was supported by an Australian National Health and Medical Research Council (NHMRC) Investigator Grant (1177370).