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Intrinsic motivation in virtual assistant interaction for fostering spontaneous interactions.

ABSTRACT: With the growing utility of today's conversational virtual assistants, the importance of user motivation in human-artificial intelligence interactions is becoming more obvious. However, previous studies in this and related fields, such as human-computer interaction, scarcely discussed intrinsic motivation (the motivation to interact with the assistants for fun). Previous studies either treated motivation as an inseparable concept or focused on non-intrinsic motivation (the motivation to interact with the assistant for utilitarian purposes). The current study aims to cover intrinsic motivation by taking an affective engineering approach. A novel motivation model is proposed, in which intrinsic motivation is affected by two factors that derive from user interactions with virtual assistants: expectation of capability and uncertainty. Experiments in which these two factors are manipulated by making participants believe they are interacting with the smart speaker "Amazon Echo" are conducted. Intrinsic motivation is measured both by using questionnaires and by covertly monitoring a five-minute free-choice period in the experimenter's absence, during which the participants could decide for themselves whether to interact with the virtual assistants. Results of the first experiment showed that high expectation engenders more intrinsically motivated interaction compared with low expectation. However, the results did not support our hypothesis that expectation and uncertainty have an interaction effect on intrinsic motivation. We then revised our hypothetical model of action selection accordingly and conducted a verification experiment of the effects of uncertainty. Results of the verification experiment showed that reducing uncertainty encourages more interactions and causes the motivation behind these interactions to shift from non-intrinsic to intrinsic.

SUBMITTER: Li C

PROVIDER: S-EPMC8064575 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:ObjectivesThis study investigated what kinds of experiences influence regional quota (chiikiwaku) medical students' motivation to practice community healthcare (CH), and the mechanism of this influence, by focusing on their experiences in a community-based medical education (CBME) programme.DesignA qualitative thematic analysis based on interviews.SettingParticipants were recruited from the chiikiwaku students of Kobe University, Japan, using purposive sampling.ParticipantsFourteen students participated. The median (IQR) age of participants was 23 (23-24); half were sixth-year and half fifth-year students.AnalysisFrom September to December 2018, the interviews were audiorecorded and transcribed verbatim. Data were analysed according to the 'Steps for Coding and Theorisation' method. Our theoretical framework comprised three internal motives (ie, needs, cognitions and emotions) and their subordinate motivation theories self-determination theory, expectancy-value theories, and positive and negative emotions, respectively.ResultsThree mechanisms and corresponding experiences emerged. The first mechanism, envisioning and preparing for practising CH, included corresponding experiences-empathy for the community, grasping the demands for CH, understanding the practices of CH, finding a role model and diminishing the conflicts between personal life and career. The second mechanism, belonging to a supportive community, included the robust construction of students' CH community and harmonisation with community residents. The third mechanism, psychological effects included the affect heuristic and framing effect. Student experiences brought about the changes and influences described in the presented mechanisms, and had both positive and negative impacts on their motivation towards CH. These results can be interpreted through the multifaceted lenses of motivation theories.ConclusionsThe authors revealed that motivation mechanisms of medical students towards CH derived from positive interaction with community residents, healthcare professionals and other students, and from exposure to attractive community environments and cultures. These experiences should be incorporated into CBME programmes to further encourage positive attitudes towards CH.

Project description:BACKGROUND:Cash and in-kind incentives can improve health outcomes in various settings; however, there is concern that incentives may 'crowd out' intrinsic motivation to engage in beneficial behaviors. We examined this hypothesis in a randomized trial of food and cash incentives for people living with HIV infection in Tanzania. METHODS:We analyzed data from 469 individuals randomized to one of three study arms: standard of care, short-term cash transfers, or short-term food assistance. Eligible participants were: 1) ?18 years old; 2) HIV-infected; 3) food insecure; and 4) initiated antiretroviral therapy (ART) ?90 days before the study. Food or cash transfers, valued at ~$11 per month and conditional on attending clinic visits, were provided for ?6 months. Intrinsic motivation was measured at baseline, 6, and 12 months using the autonomous motivation section of the Treatment Self-Regulation Questionnaire (TSRQ). We compared the change in TSRQ score from baseline to 6 and 12 months and the change within study arms. RESULTS:The mean intrinsic motivation score was 2.79 at baseline (range: 1-3), 2.91 at 6 months (range: 1-3), and 2.95 at 12 months (range: 2-3), which was 6 months after the incentives had ended. Among all patients, the intrinsic motivation score increased by 0.13 points at 6 months (95% CI (0.09, 0.17), Cohen's d = 0.29) and 0.19 points at 12 months (95% CI (0.14, 0.24), Cohen's d = 0.49). Intrinsic motivation also increased within each study group at 6 months: 0.15 points in the food arm (95% CI (0.09, 0.21), Cohen's d = 0.37), 0.11 points in the cash arm (95% CI (0.05, 0.18), Cohen's d = 0.25), and 0.08 points in the comparison arm (95% CI (-0.03, 0.19), Cohen's d = 0.21); findings were similar at 12 months. Increases in motivation were statistically similar between arms at 6 and 12 months. CONCLUSION:Intrinsic motivation for ART adherence increased significantly both overall and within the food and cash incentive arms, even after the incentive period was over. Increases in motivation did not differ by study group. These results suggest that incentive interventions for treatment adherence should not be withheld due to concerns of crowding out intrinsic motivation.

Project description:A core feature of schizophrenia (SCZ) is impairment in intrinsic motivation. Although intrinsic motivation plays an important role in enhancing improvement of the social functioning, its neural mechanisms of impairment have yet to be clarified. We hypothesized that abnormal function of the frontostriatal loop consisting of the striatum and lateral prefrontal cortex (LPFC) may be related to impaired intrinsic motivation in SCZ. We tested this by comparing the brain activity measured by functional magnetic resonance imaging and behavioral parameters associated with movement, motivation, and cognitive control between 18 stable SCZ patients and 17 healthy control (HC) participants during a task that elicits intrinsic motivation. We also compared the functional connectivity during resting-state and the fractional anisotropy using diffusion tensor imaging analysis between the two groups. We adopted an enjoyable timing task to stop a stopwatch at an exact time, which in our previous study has demonstrated to elicit intrinsic motivation. Although the performance level in general was not different between groups, the SCZ group performed worse than the HC group in trials following "overshoot" errors (i.e., the response was too late). SCZ participants showed lower intrinsic motivation to the task than the HC group in an inventory report. The striatal activity during the prediction at the task cue period was consistently lower in SCZ participants than in HC. The LPFC activity at the task cue period positively correlated with intrinsic motivation and also with the rate of success following overshoot errors in the HC group, but not in the SCZ group. The LPFC activity at the task cue period was also positively correlated with the striatal activity in both groups. The striatal activity during the feedback period was not significantly different between groups. These results suggest that, unlike HC, the neural activity in the LPFC fails to mediate between prediction of hedonic events and cognitive control of action plans in SCZ, whereas the hedonic response is retained.

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Intrinsic motivation in virtual assistant interaction for fostering spontaneous interactions.

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