What we do
What we do
The API group aims to explore the interplay between mind and body, focusing on interoception processes and bodily representations in the social and affective domains. Through psychophysiological measurements (e.g., skin conductance, heart rate, body temperature) and behavioral techniques, we investigate how emotions influence physiological responses and bodily sensations.
Who we are
Who we are
Principal InvestigatorAssistant Professor (RTD-A), PhD
Scholar, X, ResearchGate
Giada is interested in understanding the interactions between mind and body in shaping affective experiences.
Scholar, X, ResearchGate
Giada is interested in understanding the interactions between mind and body in shaping affective experiences.
PhD Student -Psychology
Gaia is interested in how social and gendered experiences influence emotional regulation and body perception, integrating insights from social neuroscience and interoception.
Gaia is interested in how social and gendered experiences influence emotional regulation and body perception, integrating insights from social neuroscience and interoception.
What we publish
What we publish
Dissecting abstract, modality-specific and experience-dependent coding of affect in the human brain
Lettieri, Handjaras, Cappello, Setti, Bottari, Bruno, Diano, Leo, Tinti, Garbarini, Pietrini, Ricciardi, CecchettiScience Advances, 2024. DOI: 10.1126/sciadv.adk6840ABSTRACT: Emotion and perception are tightly intertwined, as affective experiences often arise from the appraisal of sensory information. Nonetheless, whether the brain encodes emotional instances using a sensory-specific code or in a more abstract manner is unclear. Here, we answer this question by measuring the association between emotion ratings collected during a unisensory or multisensory presentation of a full-length movie and brain activity recorded in typically developed, congenitally blind and congenitally deaf participants. Emotional instances are encoded in a vast network encompassing sensory, prefrontal, and temporal cortices. Within this network, the ventromedial prefrontal cortex stores a categorical representation of emotion independent of modality and previous sensory experience, and the posterior superior temporal cortex maps the valence dimension using an abstract code. Sensory experience more than modality affects how the brain organizes emotional information outside supramodal regions, suggesting the existence of a scaffold for the representation of emotional states where sensory inputs during development shape its functioning.
Visual experience shapes bodily representation of emotion
Lettieri, Calce, Giraudet, CollignonEMOTION, 2024. DOI: 10.1037/emo0001440ABSTRACT: Philosophers and experimentalists have long debated whether bodily representation of emotion is grounded in our sensory experience. Indeed, we are used to observe emotional reactions expressed through the bodies of others, yet it is still unknown whether this observation influences how we experience affective states in our own bodies. To delve into this question, we developed a naturalistic haptic task and asked a group of early (n=20) and late (n=20) blind, as well as sighted individuals (n=20) to indicate where in the body they perceive changes associated with affective states. Our results show that visual experience shapes bodily representation of emotion. Blind and sighted individuals attribute different importance to body regions in relation to specific emotional states, as sighted people focus more on visceral sensations, while blind report as more relevant the mouth and the hand areas. We also observe differences in the coherence of bodily maps of specific emotions, such as aggressiveness, for which early and late blind are homogenous in reporting the mouth, while sighted subjects demonstrate a scattered pattern of activation across the body. Finally, our findings show that blind people rely on a different organization of affect, as only sighted categorize bodily maps of emotion through the valence and arousal dimensions. In summary, we demonstrate that sensory experience impacts the bodily representation of affect by modulating the relevance that different body parts have in emotional reactions, by modifying the weights attributed to interoceptive and exteroceptive signals, and by changing how emotions are conceptualized in the body.
Emotionotopy in the human right temporo-parietal cortex
Lettieri, Handjaras, Ricciardi, Leo, Papale, Betta, Pietrini, CecchettiNature Communications, 2019. DOI: 10.1038/s41467-019-13599-zABSTRACT: Humans use emotions to decipher complex cascades of internal events. However, which mechanisms link descriptions of affective states to brain activity is unclear, with evidence supporting either local or distributed processing. A biologically favorable alternative is provided by the notion of gradient, which postulates the isomorphism between functional representations of stimulus features and cortical distance. Here, we use fMRI activity evoked by an emotionally charged movie and continuous ratings of the perceived emotion intensity to reveal the topographic organization of affective states. Results show that three orthogonal and spatially overlapping gradients encode the polarity, complexity and intensity of emotional experiences in right temporo-parietal territories. The spatial arrangement of these gradients allows the brain to map a variety of affective states within a single patch of cortex. As this organization resembles how sensory regions represent psychophysical properties (e.g., retinotopy), we propose emotionotopy as a principle of emotion coding.