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Fan C, Sun J, Chen X, Luo W. Brain Stimulation of Dorsolateral Prefrontal Cortices Influences Impulsivity in Delay Discounting Choices. J Cogn Neurosci 2024; 36:1864-1878. [PMID: 38739570 DOI: 10.1162/jocn_a_02185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Intertemporal decision-making is pivotal for human interests and health. Recently, studies instructed participants to make intertemporal choices for both themselves and others, but the specific mechanisms are still debated. To address the issue, in the current study, the cost-unneeded conditions (i.e., "Self Immediately - Self Delay" and "Other Immediately - Other Delay" conditions) and the cost-needed conditions (i.e., "Self Immediately - Other Delay" and "Self Delay - Other Immediately" conditions) were set with the identity of OTHER being a stranger. We manipulated the magnitude of reward (Experiment 1) and disrupted the activation of the dorsolateral prefrontal cortex with repetitive transcranial magnetic stimulation (rTMS; Experiment 2). We found that both the behavioral and rTMS manipulations increased smaller but sooner choice probability via reducing self-control function. The reduced self-control function elicited by rTMS affected both self- and other-related intertemporal choices via increasing the choice preference for smaller but sooner reward options, which may help people deeply understand the relationship between self- and other-related intertemporal choices in processing mechanism, especially when the OTHER condition is set as a stranger.
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Li MJ, Hassan A, Javanbakht M, Gorbach PM, Shoptaw SJ. Decision-making task performance and patterns of methamphetamine use in people assigned male at birth who have sex with men. Exp Clin Psychopharmacol 2024; 32:350-357. [PMID: 37917508 PMCID: PMC11063125 DOI: 10.1037/pha0000689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
This study aims to determine whether performance on the Iowa Gambling Task (IGT), a simulation of risk-taking when faced with loss, is associated with greater frequency of methamphetamine (MA) use and challenges reducing or stopping MA use. The parent mSTUDY is a Los Angeles County-based longitudinal study of substance use and HIV risk in predominately Black/African American and Latinx people assigned male at birth who have sex with men. The IGT was offered for a limited timeframe to mSTUDY participants, of whom 192 consented to and completed this one-time task. Separate random intercept binary logistic regressions tested whether the IGT total score and subscore for Blocks 4 and 5 (last 40 card draws) were associated with the outcomes, testing positive for MA in urine and self-reported inability to control or cease MA use in the past 6 months. Separate random intercept ordered logistic regressions tested whether IGT total score and subscore were associated with self-reported frequency of MA use in past 6 months. Higher IGT subscores for Blocks 4 and 5 (lower risk-taking) were associated with lower odds of testing MA-positive (adjusted odds ratio, AOR = 0.97, 95% CI [0.95, 0.99], p = .025) and less frequent MA use in the past 6 months (AOR = 0.96, 95% CI [0.94, 0.99], p = .006). Higher IGT total scores (lower risk-taking) were also associated with less frequent MA use (AOR = 0.99, 95% CI [0.97, 0.99], p = .038). Findings from this analysis suggest that IGT performance may be a useful indicator of MA use severity in nontreatment-seeking people. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
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Affiliation(s)
- Michael J Li
- Department of Family Medicine, David Geffen School of Medicine, University of California, Los Angeles
| | - Adiba Hassan
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles
| | - Marjan Javanbakht
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles
| | - Pamina M Gorbach
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles
| | - Steven J Shoptaw
- Department of Family Medicine, David Geffen School of Medicine, University of California, Los Angeles
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Çakar T, Son-Turan S, Girişken Y, Sayar A, Ertuğrul S, Filiz G, Tuna E. Unlocking the neural mechanisms of consumer loan evaluations: an fNIRS and ML-based consumer neuroscience study. Front Hum Neurosci 2024; 18:1286918. [PMID: 38375365 PMCID: PMC10875049 DOI: 10.3389/fnhum.2024.1286918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/11/2024] [Indexed: 02/21/2024] Open
Abstract
Introduction This study conducts a comprehensive exploration of the neurocognitive processes underlying consumer credit decision-making using cutting-edge techniques from neuroscience and machine learning (ML). Employing functional Near-Infrared Spectroscopy (fNIRS), the research examines the hemodynamic responses of participants while evaluating diverse credit offers. Methods The experimental phase of this study investigates the hemodynamic responses collected from 39 healthy participants with respect to different loan offers. This study integrates fNIRS data with advanced ML algorithms, specifically Extreme Gradient Boosting, CatBoost, Extra Tree Classifier, and Light Gradient Boosted Machine, to predict participants' credit decisions based on prefrontal cortex (PFC) activation patterns. Results Findings reveal distinctive PFC regions correlating with credit behaviors, including the dorsolateral prefrontal cortex (dlPFC) associated with strategic decision-making, the orbitofrontal cortex (OFC) linked to emotional valuations, and the ventromedial prefrontal cortex (vmPFC) reflecting brand integration and reward processing. Notably, the right dorsomedial prefrontal cortex (dmPFC) and the right vmPFC contribute to positive credit preferences. Discussion This interdisciplinary approach bridges neuroscience, machine learning and finance, offering unprecedented insights into the neural mechanisms guiding financial choices regarding different loan offers. The study's predictive model holds promise for refining financial services and illuminating human financial behavior within the burgeoning field of neurofinance. The work exemplifies the potential of interdisciplinary research to enhance our understanding of human financial decision-making.
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Affiliation(s)
- Tuna Çakar
- Department of Computer Engineering, MEF University, Istanbul, Türkiye
| | - Semen Son-Turan
- Department of Business Administration, MEF University, Maslak, Türkiye
| | - Yener Girişken
- Faculty of Economics and Administrative Sciences, Final International University, Istanbul, Türkiye
| | - Alperen Sayar
- Informatics Technologies Master Program, MEF University, Istanbul, Türkiye
| | - Seyit Ertuğrul
- Informatics Technologies Master Program, MEF University, Istanbul, Türkiye
| | - Gözde Filiz
- Computer Science and Engineering Ph.D. Program, MEF University, Istanbul, Türkiye
| | - Esin Tuna
- Department of Psychology, MEF University, Istanbul, Türkiye
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Reyna VF, Müller SM, Edelson SM. Critical tests of fuzzy trace theory in brain and behavior: uncertainty across time, probability, and development. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2023; 23:746-772. [PMID: 36828988 PMCID: PMC9957613 DOI: 10.3758/s13415-022-01058-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/22/2022] [Indexed: 02/26/2023]
Abstract
Uncertainty permeates decisions from the trivial to the profound. Integrating brain and behavioral evidence, we discuss how probabilistic (varied outcomes) and temporal (delayed outcomes) uncertainty differ across age and individuals; how critical tests adjudicate between theories of uncertainty (prospect theory and fuzzy-trace theory); and how these mechanisms might be represented in the brain. The same categorical gist representations of gains and losses account for choices and eye-tracking data in both value-allocation (add money to gambles) and risky-choice tasks, disconfirming prospect theory and confirming predictions of fuzzy-trace theory. The analysis is extended to delay discounting and disambiguated choices, explaining hidden-zero effects that similarly turn on categorical distinctions between some gain and no gain, certain gain and uncertain gain, gain and loss, and now and later. Bold activation implicates dorsolateral prefrontal and posterior parietal cortices in gist strategies that are not just one tool in a grab-bag of cognitive options but rather are general strategies that systematically predict behaviors across many different tasks involving probabilistic and temporal uncertainty. High valuation (e.g., ventral striatum; ventromedial prefrontal cortex) and low executive control (e.g., lateral prefrontal cortex) contribute to risky and impatient choices, especially in youth. However, valuation in ventral striatum supports reward-maximizing and gist strategies in adulthood. Indeed, processing becomes less "rational" in the sense of maximizing gains and more noncompensatory (eye movements indicate fewer tradeoffs) as development progresses from adolescence to adulthood, as predicted. Implications for theoretically predicted "public-health paradoxes" are discussed, including gist versus verbatim thinking in drug experimentation and addiction.
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Affiliation(s)
| | - Silke M. Müller
- Department General Psychology: Cognition, University of Duisburg-Essen, Duisburg, Germany
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Neural Correlates of Delay Discounting in the Light of Brain Imaging and Non-Invasive Brain Stimulation: What We Know and What Is Missed. Brain Sci 2023; 13:brainsci13030403. [PMID: 36979213 PMCID: PMC10046576 DOI: 10.3390/brainsci13030403] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/15/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
In decision making, the subjective value of a reward declines with the delay to its receipt, describing a hyperbolic function. Although this phenomenon, referred to as delay discounting (DD), has been extensively characterized and reported in many animal species, still, little is known about the neuronal processes that support it. Here, after drawing a comprehensive portrait, we consider the latest neuroimaging and lesion studies, the outcomes of which often appear contradictory among comparable experimental settings. In the second part of the manuscript, we focus on a more recent and effective route of investigation: non-invasive brain stimulation (NIBS). We provide a comprehensive review of the available studies that applied transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) to affect subjects’ performance in DD tasks. The aim of our survey is not only to highlight the superiority of NIBS in investigating DD, but also to suggest targets for future experimental studies, since the regions considered in these studies represent only a fraction of the possible ones. In particular, we argue that, based on the available neurophysiological evidence from lesion and brain imaging studies, a very promising and underrepresented region for future neuromodulation studies investigating DD is the orbitofrontal cortex.
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Horr NK, Han K, Mousavi B, Tang R. Neural Signature of Buying Decisions in Real-World Online Shopping Scenarios – An Exploratory Electroencephalography Study Series. Front Hum Neurosci 2022; 15:797064. [PMID: 35237138 PMCID: PMC8882609 DOI: 10.3389/fnhum.2021.797064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/29/2021] [Indexed: 11/13/2022] Open
Abstract
The neural underpinnings of decision-making are critical to understanding and predicting human behavior. However, findings from decision neuroscience are limited in their practical applicability due to the gap between experimental decision-making paradigms and real-world choices. The present manuscript investigates the neural markers of buying decisions in a fully natural purchase setting: participants are asked to use their favorite online shopping applications to buy common goods they are currently in need of. Their electroencephalography (EEG) is recorded while they view the product page for each item. EEG responses to pages for products that are eventually bought are compared to those that are discarded. Study 1 repeats this procedure in three batches with different participants, product types, and time periods. In an explorative analysis, two neural markers for buying compared to no-buying decisions are discovered over all three batches: frontal alpha asymmetry peak and frontal theta power peak. Occipital alpha power at alpha asymmetry peaks differs in only one of the three batches. No further significant markers are found. Study 2 compares the natural product search to a design in which subjects are told which product pages to view. In both settings, the frontal alpha asymmetry peak is increased for buying decisions. Frontal theta peak increase is replicated only when subjects search through product pages by themselves. The present study series represents an attempt to find neural markers of real-world decisions in a fully natural environment and explore how those markers can change due to small adjustments for the sake of experimental control. Limitations and practical applicability of the real-world approach to studying decision-making are discussed.
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Woo TF, Law CK, Ting KH, Chan CCH, Kolling N, Watanabe K, Chau BKH. Distinct Causal Influences of Dorsolateral Prefrontal Cortex and Posterior Parietal Cortex in Multiple-Option Decision Making. Cereb Cortex 2021; 32:1390-1404. [PMID: 34470053 DOI: 10.1093/cercor/bhab278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/13/2022] Open
Abstract
Our knowledge about neural mechanisms underlying decision making is largely based on experiments that involved few options. However, it is more common in daily life to choose between many options, in which processing choice information selectively is particularly important. The current study examined whether the dorsolateral prefrontal cortex (dlPFC) and posterior parietal cortex (PPC) are of particular importance to multiple-option decision making. Sixty-eight participants received anodal high definition-transcranial direct current stimulation (HD-tDCS) to focally enhance dlPFC or PPC in a double-blind sham-controlled design. Participants then performed a multiple-option decision making task. We found longer fixations on poorer options were related to less optimal decisions. Interestingly, this negative impact was attenuated after applying anodal HD-tDCS over dlPFC, especially in choices with many options. This suggests that dlPFC has a causal role in filtering choice-irrelevant information. In contrast, these effects were absent after participants received anodal HD-tDCS over PPC. Instead, the choices made by these participants were more biased towards the best options presented on the side contralateral to the stimulation. This suggests PPC has a causal role in value-based spatial selection. To conclude, the dlPFC has a role in filtering undesirable options, whereas the PPC emphasizes the desirable contralateral options.
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Affiliation(s)
- Tsz-Fung Woo
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
| | - Chun-Kit Law
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
| | - Kin-Hung Ting
- University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, Hong Kong
| | - Chetwyn C H Chan
- Department of Psychology, The Education University of Hong Kong, Hong Kong
| | - Nils Kolling
- Department of Psychiatry, University of Oxford, Oxford OX3 7JX, UK.,Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, OX3 9DU, UK.,Oxford Centre for Human Brain Activity (OHBA), University of Oxford, Oxford, OX3 7JX, UK
| | - Kei Watanabe
- Department of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Bolton K H Chau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong.,University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, Hong Kong
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Ciaramelli E, De Luca F, Kwan D, Mok J, Bianconi F, Knyagnytska V, Craver C, Green L, Myerson J, Rosenbaum RS. The role of ventromedial prefrontal cortex in reward valuation and future thinking during intertemporal choice. eLife 2021; 10:67387. [PMID: 34342577 PMCID: PMC8331177 DOI: 10.7554/elife.67387] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 07/19/2021] [Indexed: 01/01/2023] Open
Abstract
Intertemporal choices require trade-offs between short-term and long-term outcomes. Ventromedial prefrontal cortex (vmPFC) damage causes steep discounting of future rewards (delay discounting [DD]) and impoverished episodic future thinking (EFT). The role of vmPFC in reward valuation, EFT, and their interaction during intertemporal choice is still unclear. Here, 12 patients with lesions to vmPFC and 41 healthy controls chose between smaller-immediate and larger-delayed hypothetical monetary rewards while we manipulated reward magnitude and the availability of EFT cues. In the EFT condition, participants imagined personal events to occur at the delays associated with the larger-delayed rewards. We found that DD was steeper in vmPFC patients compared to controls, and not modulated by reward magnitude. However, EFT cues downregulated DD in vmPFC patients as well as controls. These findings indicate that vmPFC integrity is critical for the valuation of (future) rewards, but not to instill EFT in intertemporal choice.
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Affiliation(s)
- Elisa Ciaramelli
- Dipartimento di Psicologia, Università di Bologna, Bologna, Italy.,Centro studi e ricerche in Neuroscienze Cognitive, Università di Bologna, Cesena, Italy
| | - Flavia De Luca
- Dipartimento di Psicologia, Università di Bologna, Bologna, Italy.,Centro studi e ricerche in Neuroscienze Cognitive, Università di Bologna, Cesena, Italy
| | - Donna Kwan
- Department of Psychology, York University, Toronto, Canada
| | - Jenkin Mok
- Department of Psychology, York University, Toronto, Canada
| | - Francesca Bianconi
- Centro studi e ricerche in Neuroscienze Cognitive, Università di Bologna, Cesena, Italy
| | - Violetta Knyagnytska
- Centro studi e ricerche in Neuroscienze Cognitive, Università di Bologna, Cesena, Italy.,Department of Psychology, York University, Toronto, Canada
| | - Carl Craver
- Department of Philosophy, Washington University, St. Louis, United States
| | - Leonard Green
- Department of Psychological and Brain Sciences, Washington University, St. Louis, United States
| | - Joel Myerson
- Department of Psychological and Brain Sciences, Washington University, St. Louis, United States
| | - R Shayna Rosenbaum
- Department of Psychology, York University, Toronto, Canada.,Rotman Research Institute, Baycrest, Toronto, Canada
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9
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Abstract
Discounting of future rewards is traditionally interpreted as evidence for an intrinsic preference in favor of sooner rewards. However, temporal discounting can also arise from internal uncertainty in value representations of future events, if one assumes that noisy mental simulations of the future are rationally combined with prior beliefs. Here, we further develop this idea by considering how simulation noise may be adaptively modulated by task demands, based on principles of rational inattention. We show how the optimal allocation of mental effort can give rise to the magnitude effect in intertemporal choice. In a re-analysis of two prior data sets, and in another experiment, we reveal several behavioral signatures of this theoretical account, tying choice stochasticity to the magnitude effect. We conclude that some aspects of temporal discounting may result from a cognitively plausible adaptive response to the costs of information processing. People are disproportionately more patient when evaluating larger rewards. Here, the authors show how this magnitude effect may reflect an adaptive response to uncertainty in mental representations of future value.
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