Agenda des séminaires (Les personnes extérieures à l’institut IPSY sont invitées à prendre contact avec l’organisateur·trice du séminaire)
Thursday, February 6 - 1 pm
Room: salle du conseil A224
A novel framework for the neural organization of action and object knowledge
Moritz Wurm, Trento University
How is knowledge about things and events in the world organized in the brain? Popular theories suggest a major division between occipitotemporal and frontoparietal cortex in representing object and action information, respectively. Here I challenge this view by taking a closer look at the neural pathway of action recognition and understanding: In a series of fMRI-based MVPA studies, I show that critical levels of action representation – from basic perceptual action precursors (such as body movements toward different types of entities) to perceptually invariant representations of action meaning – can be localized in lateral occipitotemporal cortex (LOTC) rather than frontoparietal areas. Moreover, the representational organization of actions in LOTC follows salient semantic principles and appears topographically aligned with related object representations. Based on these findings, I propose an updated model of knowledge organization in occipitotemporal cortex.
Invited by: Gilles Vannuscorps
Thursday, January 30 - 10 am
In control? How emotional and physiological states impact impulsive actions and decisions - the relationship to alcohol use
Aleksandra Herman, Royal Holloway, University of London
Impulsivity refers to both a stable personality trait and a set of behaviours which undergo momentary changes depending on the current circumstances. Impulsivity plays a vital role in daily life as well as clinical practice as it is associated with drug misuse and certain neuropsychiatric conditions. Because of its great health and well-being importance, it is crucial to understand factors which modulate impulsive behaviours. In this talk, I am going to present research using a variety of methods, including behavioural testing, physiological recordings, psychopharmacology and neuroimaging, investigating the role of emotions and physiological arousal as modulators of impulsive actions and decisions in healthy individuals.
Our findings suggest that changes in internal bodily state are related to behavioural impulsivity level. Staying more attuned to those changes and finding adaptive ways to adjust behaviour according to bodily needs might be vital to reducing impulsivity levels. I will also discuss how it might be relevant to alcohol use initiation and progression.
Invited by: Pierre Maurage & LEP
Friday 6 December 1:30 pm
Room: Socr 011
Parental Burnout and Sibling Relationships in Chinese Adolescents
Bin Bin Chen, Fundan University, China
Background: Since the implementation of the comprehensive second-child policy in 2016, the number of two-child families in China has risen sharply.
However, very little practical information is available for those parents to help them improve sibling relationship quality. The current research was designed to remedy this situation by conducting the study on Chinese adolescents’ sibling relationships. In addition, existing research on parenting burnout is still scarce, in particular the research on the impact of parenting burnout on child development. Based on previous research dealing with parental roles in sibling relationship quality, the present study aimed to examine how parental burnout would affect the children's sibling relationship through the mediator of parenting behavior.
Methods: Young adolescents and their mothers from 208 families in Huzhou, Zhejiang province, China participated in this research. Mean age of adolescents (93 boys, 115 girls) was 13.10 years (SD= 1.90). All adolescents in the present study had at least one sibling, with a mean age of 12.72 years (SD= 7.49). The mean age difference between the siblings was 6.82 years (SD =3.46). Mothers were, on average, 39.26 years old and had completed 9.91 years of education. Mothers completed questionnaires that assessed parenting burnout. Furthermore, adolescents competed questionnaires that assessed sibling relationship and mother's parenting behaviors.
Results and Discussion:: We followed current standard practice for mediation analyses (Hayes, 2013), using Model 4 in the PROCESS macro for SPSS. The results showed that higher levels of maternal burnout led to more neglected parenting behavior, which in turn increased adolescents’ conflicts and avoidance in sibling relations but decreased sibling intimacy. The current findings suggested that mother’s mental statement did affect the child's sibling relationship, and this role was transmitted through parenting. The findings provided a new perspective for improving the sibling relationship.
Intervention or prevention should focus on mothers’ maternal mental state in order to improve the sibling relationships. Because of the different parenting roles between father and mother in a Chinese family, future studies should include fathers to examine this issue.
Invited by: Isabelle Roskam, Moïra Mikolajczak, Alexandre Heeren
Jeudi 14 novembre de 15h à 17h
Salle du conseil A224
Souffrance au travail et consommation d’alcool au Togo
Pari Pabousoum, Université de Lomé, Togo
L’objectif de cette étude est d’examiner les difficultés psychologiques liées au travail et les motivations qui expliquent des comportements de consommation d’alcool chez des travailleurs au Togo. Il s’agit d’une étude prospective qui a concerné trente-cinq sujets masculins adultes admis en hospitalisation au service d’Hépato-Gastro Entérologie du CHU-Campus de Lomé (Togo) pour une maladie du foie provoquée par la consommation d’alcool en lien avec leurs conditions de travail. La collecte des données a été effectuée au cours de l’évaluation psychologique de ces patients au moyen de l’observation directe, de l’entretien individuel semi-structuré et de l’échelle de Karasek. L’étude a permis de mettre en évidence des contraintes mentales importantes du travail et des fonctions de l’alcool pour y faire face. Par exemple, la consommation de l’alcool au travail s’est révélée être un moyen pour 91,4% des enquêtés de supporter les traitements qu’ils jugent humiliants de leurs supérieurs hiérarchiques. Par ailleurs, certains participants affirment consommer de l’alcool pour « se sentir vigoureux et être plus vigilent au travail » et d’autres affirment que l’alcool les aide à combattre la peur et à braver la douleur. C’est aussi un moyen qui leur assure le « courage pour faire face à l’hypocrisie et à l’indifférence des collègues ». La théorie de la psychodynamique au travail (Christophe Dejours) a servi de grille de lecture des résultats. En effet, la souffrance est consubstantielle à toute situation de travail et constitue un état de lutte que vivent les travailleurs pour demeurer dans la normalité et ne pas sombrer dans la dépression et le burn out. L’alcool serait donc un moyen de lutte pour surmonter les difficultés liées aux relations de travail. Malheureusement, cet état de lutte a un coût à la fois psychique et somatique.
Invitant : Jan De Mol
Lundi 28 octobre - 16h00
Salle du conseil A224
Physical activities and exercise for healthy cognitive aging (Présentation en français)
Dr. Louis Bherer, M.Ps., Ph.D, Department of Medicine, University of Montreal Preventive Medicine and Physical Activity Centre (Centre ÉPIC)
Physical activity and exercise can help improve cognition, quality of life and mobility in older adults. This talk will be an overview of more than ten years of intervention studies from our lab supporting the notion that multiple exercise modality, from aerobic endurance training to resistance, gross motor exercise and dance training can lead to several benefits in older adults. Our results suggest that these programs can help enhance cognition, quality of life and boost biomarkers associated with brain plasticity (e.g., BDNF). Studies with patients also suggest that physical activity and exercise can be used as effective non-pharmaceutical intervention in frail older adults and patients with Parkinson’s disease, mild cognitive impairment at dementia.
Invitant : Stefan Agrigoroaei
Thursday, September 26th - 10 am
Investigating the transition from binge drinking to alcohol dependence: Some key issues and findings
Antoinette Poulton, University of Melbourne (Australia)
Alcohol dependent individuals are characterised by loss of control, which manifests as a strong desire to consume alcohol, difficulty regulating intake, and continuing to drink despite negative consequences. Heightened impulsivity, which arises from an imbalance in the brain between reward sensitive processes and cognitive control mechanisms, is implicated as a key factor underpinning this loss of control. Research concentrating on vulnerability for dependence in binge drinkers has also focused on impulsivity, but results have been inconsistent. Several pertinent factors may be at play. Firstly, it is possible irregularities regarding definitions of binge drinking plus a reliance on retrospective methods of assessing consumption undermine research findings. Secondly, an overarching concern regards low statistical power. To combat these issues, we developed a smartphone app to gather information about alcohol intake behaviour in real time. Additionally, survey and impulsivity data was collected entirely online in order to attract a larger and more diverse sample than previous studies. Results to date will be presented.
Invited by: Pierre Maurage & LEP
Tuesday, September 3 - 3pm (Two presentations)
A) The tale of flipping beauty: How fluency and categorization shape our preferences
Piotr Winkielman, University of California, San Diego (UCSD)
Who's the fairest of them all? My talk argues that our mind’s answer to this question emerges via interaction of processing fluency (effort) and categorization. I’ll start with a classic effect – “beauty-in-averages” (BIA) – where “blended” or “composite” stimuli are appealing. This effect occurs with a variety of natural and artificial objects. Some think the BIA results from koinophilia – a biological tendency to avoid unusual or deviant features. However, I will argue that the BIA reflects hedonic reactions to greater fluency (efficiency) with which average stimuli are usually processed. More interestingly, I will also show that we can reverse this preference with manipulations that change how efficiently the “averages” or “blends” are processed. Specifically, blends can be fluent and liked, but also disfluent and disliked. What specifically happens depends on the perceiver’s expertise with exemplars and categories, and also on how the perceiver constructs the task-relevant category. I will show examples of this flexibility across a variety of stimuli, including social categories of gender and races. In general, I will argue that the flexibility of beauty is at least partly explainable by the “processing dynamics” of the beholder.
B) Mouth and mind: How superficial language patterns affect our feelings
Sascha Topolinski, Université de Cologne (Universität zu Köln)
This talk highlights recent approaches exploring a thus overlooked route to attitudes, namely motoric articulation patterns of names that invoke approach and avoidance tendencies and thereby trigger positive attitudes towards the objects and products that bear such names. Specifically, names are construed for which the articulations spots of the consonants wander either from the front to the back of the mouth (inward, such as BAKO) or from the back to the front of the mouth (outward, such as KABO). In several lines of studies, participants express higher favorability of inward over outward words. Moreover, persons and companies with inward names are liked more than persons with outward names. Also, participants report higher product liking, purchase intentions, and higher willingness-to-pay for products with inward over outward names. When food is labelled such way, participants report higher palatability of and even consume more of food bearing inward compared to outward names.
Invited by: Anne Kever, Nicolas Vermeulen