Banca de DEFESA: FELIPE DIEGO TORO HERNÁNDEZ

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : FELIPE DIEGO TORO HERNÁNDEZ
DATA : 29/08/2024
HORA: 09:00
LOCAL: https://conferenciaweb.rnp.br/sala/petermeclaessens
TÍTULO:

Affective Modulation of Intentional Binding using Linguistic Stimuli: Psychophysics and Neuropsychophysiology

PÁGINAS: 30
RESUMO:

Intentional binding refers to the subjective compression of time between two events, typically when a voluntary action is perceived as causing a subsequent outcome. This effect is often used as an implicit measure of the Sense of Agency (SoA), the feeling of control over external events that aligns our actions with their outcomes. While SoA is generally influenced by affective states—where negative outcomes are perceived as less connected to the self than positive ones—intentional binding results have been inconsistent. Explicit measures (e.g., self-reports) have consistently shown affective modulation of SoA, but implicit measures like intentional binding remain controversial, with some studies showing varying effects or none at all. To better understand the factors influencing the affective modulation of intentional binding, this project assessed the phenomenon using emotional word stimuli. First, a psycholinguistic analysis was conducted to create emotional categories (positive, negative, neutral) and match variables across these categories (e.g., word length, concreteness, frequency). Questionnaires measured Familiarity and Age of Acquisition, confirming values for Emotional Valence and Arousal. While Familiarity and Age of Acquisition differed across conditions, post-hoc measures of Emotional Valence and Arousal remained consistent. Two 2-alternative-forced-choice (2AFC) experiments were then conducted. In the first experiment, we explored the affective modulation of intentional binding within a predictive model, where participants could predict emotional outcomes. We manipulated three factors: agency (active vs. passive), emotional valence (neutral, positive, negative), and interval duration ratio, based on individual just noticeable differences (JND). Among 33 participants, results indicated shorter perceived intervals in agency trials compared to passive trials, consistent with intentional binding (β = 0.237 ± 0.09, z = 2.76, p<.01), but no affective modulation was found. In the second experiment, predictability was added as a factor (predictable vs. unpredictable trials), with 40 participants. We replicated the intentional binding effect (β = 0.284 ± 0.095, z = 3.00, p < .01) and again found no affective modulation. However, a main effect of emotional valence was observed: positive words induced stronger temporal compression than negative words (β = -0.268 ± 0.117, z = -2.28, p < .05). We discuss the implications of emotional influence on the perception of temporal intervals, along with the mechanisms that guide agency and predictability in temporal binding.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1714632 - PETER MAURICE ERNA CLAESSENS
Membro Titular - Examinador(a) Interno ao Programa - 1844585 - MARIA TERESA CARTHERY GOULART
Membro Titular - Examinador(a) Externo à Instituição - FERNANDA BUENO RECIO - IDOR
Membro Titular - Examinador(a) Externo à Instituição - JOSÉ HUGO GONÇALVES MAGALHÃES - AEVSF
Membro Suplente - Examinador(a) Interno ao Programa - 1955999 - ANDRE MASCIOLI CRAVO
Membro Suplente - Examinador(a) Externo à Instituição - MATEUS SILVESTRIN - UPM