Dataset Information

Intraparietal stimulation disrupts negative distractor effects in human multi-alternative decision-making.

ABSTRACT: There has been debate about whether addition of an irrelevant distractor option to an otherwise binary decision influences which of the two choices is taken. We show that disparate views on this question are reconciled if distractors exert two opposing but not mutually exclusive effects. Each effect predominates in a different part of decision space: (1) a positive distractor effect predicts high-value distractors improve decision-making; (2) a negative distractor effect, of the type associated with divisive normalisation models, entails decreased accuracy with increased distractor values. Here, we demonstrate both distractor effects coexist in human decision making but in different parts of a decision space defined by the choice values. We show disruption of the medial intraparietal area (MIP) by transcranial magnetic stimulation (TMS) increases positive distractor effects at the expense of negative distractor effects. Furthermore, individuals with larger MIP volumes are also less susceptible to the disruption induced by TMS. These findings also demonstrate a causal link between MIP and the impact of distractors on decision-making via divisive normalisation.

SUBMITTER: Kohl C

PROVIDER: S-EPMC9946441 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Intraparietal stimulation disrupts negative distractor effects in human multi-alternative decision-making.

Kohl Carmen C Wong Michelle X M MXM Wong Jing Jun JJ Rushworth Matthew F S MFS Chau Bolton K H BKH

eLife 20230222

There has been debate about whether addition of an irrelevant distractor option to an otherwise binary decision influences which of the two choices is taken. We show that disparate views on this question are reconciled if distractors exert two opposing but not mutually exclusive effects. Each effect predominates in a different part of decision space: (1) a positive distractor effect predicts high-value distractors improve decision-making; (2) a negative distractor effect, of the type associated ...[more]

PMID: 36811348

Similar Datasets

Project description:OBJECTIVES:We explored how negative stories about long-acting reversible contraception (LARC) - defined as a firsthand negative experience with LARC shared directly with the study participant - were involved in participants' decisions about whether to use LARC following abortion, and how counseling affected the influence of negative LARC stories on contraceptive choices. STUDY DESIGN:We performed a multi-methods study, embedded within a trial examining the impact of a theory-based counseling intervention on LARC uptake post-abortion. Participants completed a baseline survey to determine the influence of negative LARC stories. We subsequently invited respondents who reported having heard negative LARC stories to participate in a semi-structured qualitative interview. We analyzed quantitative data with univariate statistics. We analyzed qualitative data using thematic content analysis. RESULTS:Among the 60 participants, 16 (27%) reported having heard negative LARC stories. Two of the 16 (13%) planned to initiate LARC prior to counseling, compared to 18 of 44 women (41%) who had not heard negative LARC stories (p=0.06). Prior to counseling, 69% of participants with negative LARC stories reported that these stories made them less likely to use LARC. In qualitative interviews with 9 women, we identified several key themes: (1) negative LARC stories deterred LARC use; (2) friends and family were valued informants; (3) potential side effects were important to LARC decision-making; and (4) positive and negative features of the counseling encounter influenced the effect of negative LARC stories. CONCLUSIONS:Negative LARC stories are common among women presenting for abortion at our institution and may influence patient uptake of these methods. Implications This study uses a multi-methods approach to examine the influence of negative stories about long-acting reversible contraception (LARC) on decision-making about LARC. These findings can help providers elicit patients' needs in contraception counseling and generate hypotheses for future counseling research.

Dataset Information

Intraparietal stimulation disrupts negative distractor effects in human multi-alternative decision-making.

Publications

Intraparietal stimulation disrupts negative distractor effects in human multi-alternative decision-making.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets