On December 16th, Mai Chunmiao defended her thesis titled “The development of non-human primate-like grooming behavior in preverbal infants” under the supervision of Angela Sirigu and Irene Cristofori. Congratulations!

As part of the Labex Cortex Conferences, Ilya Monosov gave a talk about the neurobiology of curiosity. He discussed the biological mechanisms of the intrinsic motivational drives to explore and outlined the circuits through which curiosity can impact value-based economic decision-making in primates and humans.

Before the holidays, everyone was invited to a lunch party during which participants brought a typical dish from their country. A great time was spent altogether!

On December 12th, Felipe Rolando defended his thesis titled “Striatal and hippocampal dynamics during time categorization” under the direction of Sylvia Wirth. Congrats!

On December 2nd, Zixuan Tang defended her thesis titled “Brain representations and behavioral effects of physical distance on action and of social distance on moral judgements”. Congratulations!

On December 2nd, Valentin GUIGON defended his thesis titled “Neurocognitive mechanisms underlying transmission of uncertain information in humans.”. Congratulations!

On December 1st, Jiawei Liu defended her thesis titled “Oxytocin and cross-cultural influence on social decision-making”. Congratulations!

As part of the Labex Cortex Conferences, David Van Essen discussed recent progress in understanding fundamental aspects of cortical structure, development, connectivity, function, and evolution, in his talk titled: "Primate Cerebral Cortex: Principles of Connectivity, Parcellation, and Folding".

On October 25th, Linh lnguyen defended her thesis titled “Reading at the fingertips. What can digital movements inform about visual attention mechanisms in reading acquisition and how they can help”. Congratulations!

Sabrina Ravel, part of the Marmobrain collaborative project, discussed the influence of social position on performance in a stimulus-reward association reversal learning task in common marmoset. The tests carried out through automated testing systems in their homecage highlighted the possibility of studying cognitive abilities without water or food constraints. The results showed that individual cognitive abilities, as well as hierarchy, affect learning speed in marmosets but this wasn’t the case during reversal learning.

Manuel Varlet from the MARCS Institute for Brain, Behaviour, and Development, during his talk “Self-other neural and behavioural mechanisms for coordinating with others” presented new research combining frequency tagging and EEG hyperscanning used to investigate self-other neural and behavioural mechanisms enabling interpersonal coordination using auditory and visual information. He highlighted the importance of leadership roles, and the processes specific to each modality underlying interpersonal synchronisation.

Robert Seyfarth, a comparative psychologist renowned for outstanding contributions to understanding animal social cognition, communication and for providing the foundation for many current ideas on the evolution of language and sociality, was invited for a Q&A session. He answered questions about his career, how the field has changed and made progress. He also gave a few insights on where it needs to focus and how the next generation of scientists can contribute to that.

After a long time, the Barbecue Party of the ISC made its comeback on June 30! Starting from 5-6 PM, we shared a great time and a meal together!

Philippe Tobler from the University of Zurich during his talk “Motivational functions of the human midbrain” discussed the nature of the signals of dopamine neurons with the processing of errors in the prediction of both the subjective value and motivational salience of outcomes. Thanks to neuroimaging during a Pavlovian task, analyses revealed that value coding was limited mainly to evidence of reward, in line with the dual dimension hypothesis.

Jerome Sallet from the Stem Cell and Brain Research Institute, during his talk “Circuits for social cognition and foraging of the macaque brain”, presented his work regarding social interactions and circuits involved in making strategic exploratory decisions in macaques. He explained the impact of sociality on brain structure and highlighted the importance of an evolutionary perspective.

For the second mentoring session in the framework of the Marc Jeannerod Young Investigator Award, the topic of gender biases was addressed. Dr. Christiane Schreiweis from the team "Neurophysiology of Repetitive Behaviours" and founding member of the Gender Equity Committee of the Brain Institute in Paris presented a talk on how can we understand these gender biases through neuroscience and what we can do to overcome them. It was preceded by the screening of a short documentary and followed by a discussion.

Abhishek Banerjee from Newcastle University in his talk "Building a flexible sensory cortex : Cellular and computational principles", showed that distinct neuronal subpopulations in OFC and S1 interact specifically, contributing to behaviour dependant neural computation. His work is key to understand local and global computations underlying flexible behaviour.

On April 4th, Etienne Abassi defended his thesis titled “The social dyad in visual perception: a new visual object category”. Congratulations !

Kami Koldewyn in her talk “Social Interactions in the Social Brain” explored the role of various structures in the “social brain” across development. She showed the posterior superior temporal sulcus as a key region for processing dynamic social interactions, but other regions such as the extrastriate body area (EBA) also show sensitivity to specifically interactive information, depending on stimulus content and context.

A new paper from the Ape Social Mind Lab with ISC CNRS Affiliation was published in Philosophical Transactions of the Royal Society regarding the association between the oxytocinergic system and cooperative behaviors in wild chimpanzees. This system provides the basis of parochial cooperation and suggests that the roots of human parochial altruism exist in chimpanzees. Lemoine SRT, Samuni L, Crockford C, Wittig RM. 2022 Parochial cooperation in wild chimpanzees: a model to explain the evolution of parochial altruism. Phil. Trans. R. Soc. B 377: 20210149. https://doi.org/10.1098/rstb.2021.0149

As part of the Labex Cortex Conferences, Marco Tamietto from the University of Turin presented his work on patients with cortical blindness or with hemispatial neglect in a talk titled : “Neural mechanisms of sensori-motor integration and affective processing without awareness and visual cortex “.

On March 8th, Celia Loriette defended her thesis "Non-invasive brain-machine interfaces and neurofeedback to enhance the attentional function". Congrats!

Haemy Lee Massson from the Johns Hopkins University showed that the complex integration among social, emotional, and somatosensory regions when receiving and observing affective touch, is disrupted in ASD, using advanced multi-methods of neuroimaging and machine learning. This is also associated with the severity of touch aversion and poor social responsivity.

They investigated, using eye-tracking, the development of visual categorization of animate and inanimate objects. In their visual exploration of objects, infants between 4 and 10 months seem to be guided by object salience, according to the animate–inanimate distinction. Then, through their second year of life, they organize their visual exploration based on biologically relevant categories. https://pubmed.ncbi.nlm.nih.gov/35169072/

A new paper from the BabyLab was published on Current Biology. They studied the attentional blink phenomenon in infants, children, and adult participants, using eye-tracking to address how acceleration in information processing affects information processes that contribute to perceptual awareness. The results represent a major advance in our understanding of infant thinking and how it gradually transforms into adult thinking. https://www.insb.cnrs.fr/fr/cnrsinfo/comment-la-pensee-la-conscience-vient-aux-nourrissons Hochmann and Kouider, Acceleration of information processing en route to perceptual awareness in infancy, Current Biology (2022), https://doi.org/10.1016/j.cub.2022.01.029