Browsing by Author "Pinto, Tiago Miguel"
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- EEG signatures during pregnancy and their role on parenting-related measures: scoping reviewPublication . Braga, Patrícia Vilela; Amaoui, Sofia; Lamela, Diogo; Jongenelen, Inês; Costa, Raquel; Oliveira, Jorge; Pasion, Rita; Pinto, Tiago Miguel; Paiva, Tiago Oliveira; Campos, Carlos; Campos, CarlosThis scoping review aims to map and synthesise the current research evidence targeting the electroencephalography (EEG) neural correlates during pregnancy and its association with parenting-related measures during pregnancy and postpartum period. Pregnancy is characterised by a wide range of biological changes associated with adaptation to parenthood. A growing body of literature has examined the neural correlates of pregnancy using EEG, revealing distinct patterns in pregnant females, with these EEG metrics changing throughout gestation and postpartum. Due to the heterogeneity of the evidence, the current literature lacks an organised synthesis, making it difficult to understand the neural correlates during pregnancy and their association with parentingrelated measures during pregnancy and postpartum period. Studies will be included if they contain a quantitative EEG metric in their assessment in pregnant women. Studies will be included if they involve clinical or community samples. No sociodemographic, obstetric, or health exclusion criteria will be applied. The scoping review will be conducted following the Joanna Briggs Institute’s (JBI) guidelines and will be reported following Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines. Searches will be conducted in 7 databases (Cochrane for Trials and Reviews, PsycInfo, PubMed, Psychological and Behavioural Science Collection, Scopus and Web of Science Core Collection) for articles published in English, Portuguese, or Spanish with no limitation on the region or publication time frame. Two independent reviewers will screen each record following a standardised flowchart using asreview lab. Data extraction will be performed by the two reviewers using charting tables in Excel. Disagreements at any step will be resolved via consensus or by a third reviewer. Results will be reported using tables and graphs along with a descriptive analysis, according to the research questions.
- Neurophysiological markers of cardiac interoceptive processing in expectant parents: a study with heartbeat-evoked potentialsPublication . Braga, Patrícia Vilela; Marshall, Amanda; Lamela, Diogo; Jongenelen, Inês; Rocha, Nuno Barbosa; Costa, Raquel; Pasion, Rita; Schütz-Bosbach, Simone; Pinto, Tiago Miguel; Feldman, Ruth; Campos, Carlos; Campos, Carlos; Rocha, NunoPregnancy and parenthood are associated with functional and morphological brain changes. Specifically, the parental caregiving network encompasses key structures implicated in interoception, that is, the ability to perceive and subjectively experience inner bodily states. Interoceptive processing may be critical for successful caregiving, allowing parents to integrate perceived changes in their own bodily states with information stemming from their child. Thus, it is feasible to hypothesize that pregnancy-related neurophysiological changes can modify interoception in expectant parents. Objective: To compare neural markers of cortical interoceptive processing (heartbeat-evoked potentials; HEP) between first-time expectant parents (mothers and fathers) and matched non-parents. First-time expectant heterosexual couples at 26-34 weeks gestational age (n = 70) and matched non-parents (n = 140, 70 female) will complete a multilevel interoception assessment protocol. Neural markers of interoception will be indexed by HEP, that is, neurophysiological responses to cardiac afferent inputs which are obtained through electroencephalography recordings (EEG) time-locked to electrocardiography events (ECG). HEP will be recorded while participants complete the Baby Face Repetition Suppression Paradigm in which sad or neutral infant facial expressions are either repeated or alternated in a 500 ms interstimulus interval. This manipulation induces an emotion-specific repetition modulation on HEP amplitude (differential effects for sad vs. neutral facial expressions). A condition with adult facial expressions will be employed to examine domain-general vs. infant-specific effects. Expectant parents will display increased allocation of neural resources to interoceptive inputs (larger repetition-induced HEP modulation) in contrast to non-parents, particularly when considering infant facial expressions. Effect sizes will be larger when contrasting sad vs. neutral infant facial expressions. Findings from this pioneering study will provide further understanding of the parental brain and the role of interoception during pregnancy, contributing to the comprehension of complex processes involved in caregiving and the development of the parent-infant bond.
- Neurophysiological markers of cardiac interoceptive processing in first-time expectant mothersPublication . Braga, Patrícia Vilela; Marshall, Amanda; Lamela, Diogo; Jongenelen, Inês; Rocha, Nuno Barbosa; Costa, Raquel; Pasion, Rita; Schütz-Bosbach, Simone; Pinto, Tiago Miguel; Feldman, Ruth; Campos, Carlos; Campos, Carlos; Rocha, NunoPregnancy is a complex biological phenomenon where two distinct pathways may produce changes in interoception (ability to perceive and subjectively experience inner bodily states). First, pregnancy modifies the parental caregiving brain network, which includes key regions for interoceptive processing, particularly the insula. Second, pregnancy also changes the strength, frequency, and/or nature of interoceptive signals across different modalities (e.g., cardiac, respiratory, gastric). This study investigates pregnancy-related changes in neural markers of cortical interoceptive processing, specifically heartbeat-evoked potentials (HEP), by comparing first-time expectant mothers with non-pregnant, age-matched females. Data were collected from first-time expectant mothers (n = 13; Mage = 32.15 years) and matched controls (n = 8; mean age = 30.88 years) at 28–32 weeks of gestation. EEG recordings, time-locked to R-peaks (ECG), were obtained while participants completed the Infant Face Repetition Suppression Task. This paradigm was designed to induce an emotion (sad vs. neutral) and age-specific (infant vs. adult) modulation of HEP amplitude. A cluster mass permutation test was employed to identify the electrodes and time-windows where HEP amplitude was effectively modulated (right frontal-central; 308 - 600 ms). Repetition-suppression effects on HEP amplitude were observed for adult stimuli (p = .049, d = 0.499), while no modulation was observed in the infant condition (p = .471, d = 0.174). Pregnant participants displayed significantly lower HEP amplitude in adult trials in comparison to non-pregnant controls (p = .046, g = 0.997). Despite significant differences only emerging in the adult trials, pregnant women displayed lower HEP amplitude across all conditions. These findings suggest that pregnancy modifies cardiac interoceptive processing, leading to an overall decrease in HEP amplitude. Contrary to our hypothesis, expectant mothers did not exhibit infant- or emotion-specific changes in neural markers of cardiac interoception.
- The role of interoceptive processing in prenatal depression and anxietyPublication . Praça, Maiara Silva; Braga, Patrícia Vilela; Marshall, Amanda; Lamela, Diogo; Jongenelen, Inês; Rocha, Nuno Barbosa; Costa, Raquel; Schütz-Bosbach, Simone; Pinto, Tiago Miguel; Feldman, Ruth; Campos, Carlos; Rocha, NunoPregnancy is a complex biological phenomenon that can modify several interoception domains (ability to perceive and subjectively experience inner bodily states). These changes in interoceptive processing may also play a role in the emergence of prenatal psychopathology, namely anxiety and depression. To examine the association between interoceptive processing and psychopathology (depression and anxiety) in first-time pregnant women (3rd trimester). 17 first-time expectant mothers (mean age = 32.71 years) completed data collection at 28-32 gestational age. Interoception was evaluated using self-report measures (Interoceptive Accuracy and Attention Scales), a performance-based interoceptive accuracy task (Heartbeat Tapping Task; participants are required to tap a key whenever they feel a heartbeat), and neural markers of infant-specific interoceptive processing (heartbeat-evoked potentials - HEP - during the Infant Face Repetition-Suppression Task). A cluster mass permutation test was employed to identify the electrodes and time-windows where HEP amplitude was effectively modulated (right frontal-central; 308 - 600 ms). The Edinburgh Postnatal Depression Scale was used to evaluate depressive symptoms, while the State Anxiety Inventory (STAI-S) measured current anxiety levels. Significant positive correlations were found between interoceptive attention and anxiety (r =.645; p = .017), as well as between interoceptive attention and depression (r = .749; p = .003). Interoceptive accuracy was neither correlated with anxiety nor depression. A large (albeit non-significant) negative correlation (r = -.301, p = .368) was found between depressive scores and HEP emotional modulation in the infant condition, suggesting that infant-specific emotional modulation of HEP may be reduced in prenatal depression. These preliminary findings suggest that interoceptive processing is associated with prenatal psychopathology across several levels. Self-perceived beliefs about interoceptive attention were positively associated with both anxiety and depression. Furthermore, infant-specific neural markers of interoceptive processing may also play an important role in prenatal depressive symptomatology.