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Maria del Carmen Sandi Perez

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Publications associées (191)

Advances in understanding neural mechanisms of social dominance

Maria del Carmen Sandi Perez

Dominance hierarchy profoundly impacts social animals' survival, physical and mental health and reproductive success. As the measurements of dominance hierarchy in rodents become established, it is now possible to understand the neural mechanism mediating ...

2018

Social dominance orientation influences the perception of facial expressions

Maria del Carmen Sandi Perez, Michael Herzog, Vitaly Chicherov, Patricia Figueiredo

Association for Research in Vision and Ophthalmology2017

Constitutive differences in habituation of the glucocorticoid response to stress are related to variation in aggression and anxiety-related behaviors

Maria del Carmen Sandi Perez, Olivia Zanoletti, Sophie Elizabeth Walker, Marie-Isabelle Guillot de Suduiraut

Glucocorticoids coordinate responses that enable an individual to cope with stressful challenges and, additionally, mediate adaptation following cessation of a stressor. There are important individual differences in the magnitude of glucocorticoid responsi ...

2017

Acute stress alters individual risk taking in a time-dependent manner and leads to anti-social risk

Maria del Carmen Sandi Perez, Samuel Bendahan, Fiona Hollis, John Christian Thoresen, Lorenz Goette, Leyla Loued-Khenissi

Decision-making processes can be modulated by stress, and the time elapsed from stress induction seems to be a crucial factor in determining the direction of the effects. Although current approaches consider the ﬁrst post-stress hour a uniform period, the ...

2017

Hierarchical status predicts behavioral vulnerability and nucleus accumbens metabolic profile following chronic social defeat stress

Maria del Carmen Sandi Perez, Rolf Gruetter, Hongxia Lei, Antoine Timothée Cherix, Thomas Didier Larrieu, João Pedro de Matos Rodrigues, Maria Aranzazu Duque Moreno

Extensive data highlight the existence of major differences in individuals’ susceptibility to stress [1; 2; 3 ; 4]. While genetic factors [5 ; 6] and exposure to early life stress [7 ; 8] are key components for such neurobehavioral diversity, intriguing ob ...

2017

Effects of paternal and peripubertal stress on aggression, anxiety, and metabolic alterations in the lateral septum

Maria del Carmen Sandi Perez, Maria Isabel Cordero Campana, Nathalie Just, Guillaume Poirier

Early-life stress and biological predispositions are linked to mood and personality disorders related to aggressive behavior. We previously showed that exposure to peripubertal stress leads to increased anxiety-like behaviors and aggression against males a ...

2016

Urolithin A induces mitophagy and prolongs lifespan in C. elegans and increases muscle function in rodents

Patrick Aebischer, Maria del Carmen Sandi Perez, Elena Katsyuba, Johan Auwerx, Damien Sébastien Huzard, Norman Lionel Moullan, Pénélope Andreux, Evan Graehl Williams, Dongryeol Ryu, Laurent Mouchiroud, Giuseppe Lo Sasso, Pooja Jha

The biological effects of urolithins remain poorly characterized, despite wide-spread human exposure via the dietary consumption of their metabolic precursors, the ellagitannins, which are found in the pomegranate fruit, as well as in nuts and berries. We ...

2016

Not all anxious individuals get lost: trait anxiety and mental rotation ability interact to explain performance in map-based route learning in men

Maria del Carmen Sandi Perez, Rebecca Francelet, John Christian Thoresen

Navigation through an environment is a fundamental human activity. Although group differences in navigational ability are documented (e.g., gender), little is known about traits that predict these abilities. Apart from a well-established link between menta ...

2016

Emergence in extinction of enhanced and persistent responding to ambiguous aversive cues is associated with high MAOA activity in the prelimbic cortex

Maria del Carmen Sandi Perez, Guillaume Poirier

There is a great deal of individual variability in the emotional outcomes of potentially traumatic events, and the underlying mechanisms are only beginning to be understood. In order to further our understanding of individual trajectories to trauma, its vu ...

2016

Neuroligin-2 expression in the prefrontal cortex is involved in attention deficits induced by peripubertal stress

Maria del Carmen Sandi Perez, Stamatina Tzanoulinou, Olivia Zanoletti, Jocelin Grosse, Orbicia Riccio Wicht

Emerging evidence indicates that attention deficits, which are frequently observed as core symptoms of neuropsychiatric disorders, may be elicited by early life stress. However, the mechanisms mediating these stress effects remain unknown. The prefrontal c ...

2016

Mitochondrial function in the brain links anxiety with social subordination

Maria del Carmen Sandi Perez, Carlos Canto Alvarez, Olivia Zanoletti, Michael van der Kooij, Fiona Hollis, Laura Lozano Montes

Dominance hierarchies are integral aspects of social groups, yet whether personality traits may predispose individuals to a particular rank remains unclear. Here we show that trait anxiety directly influences social dominance in male outbred rats and ident ...

National Academy of Sciences2015

Stress pulls us apart: Anxiety leads to differences in competitive confidence under stress

Maria del Carmen Sandi Perez, Samuel Bendahan, Fiona Hollis, John Christian Thoresen, Lorenz Goette

Social competition is a fundamental mechanism of evolution and plays a central role in structuring individual interactions and communities. Little is known about the factors that affect individuals’ competitive success, particularly in humans. Key factors ...

2015

The effects of stress during early postnatal periods on behavior and hippocampal neuroplasticity markers in adult male mice

Maria del Carmen Sandi Perez, Olivia Zanoletti, Jocelin Grosse, Michael van der Kooij

Infancy is a critical period for brain development. Emerging evidence indicates that stress experienced during that period can have long-term programming effects on the brain and behavior. However, whether different time periods represent different vulnera ...

2015

Stress and the social brain: Behavioral effects and neurobiological mechanisms

Maria del Carmen Sandi Perez

Stress often affects our social lives. When undergoing high-level or persistent stress, individuals frequently retract from social interactions and become irritable and hostile. Predisposition to antisocial behaviours — including social detachment and viol ...

2015

The effects of extrinsic stress on somatic markers and behavior are dependent on animal housing conditions

Maria del Carmen Sandi Perez, Damien Sébastien Huzard, Guillaume Poirier, Michael van der Kooij

Properties of the environment play an important role in animal wellbeing and may modulate the effects of external threats. Whereas stressors can affect emotion and impair cognition, environmental enrichment may prevent the occurrence of such negative seque ...

Pergamon-Elsevier Science Ltd2015

The genetics of social hierarchies

Maria del Carmen Sandi Perez, Michael van der Kooij

The organization of individuals in social hierarchies is ubiquitous in social species. Although the evolution of dominance at the population level is constrained by its interactive character, selective breeding shows that dominance and subordination can be ...

2015

Hippocampal neuroligin-2 links early-life stress with impaired social recognition and increased aggression in adult mice

Maria del Carmen Sandi Perez, Jocelin Grosse, Céline Fournier, Alexandre Claude Gustave Bacq

Early-life stress is a key risk factor for the development of neuropsychiatric disorders later in life. Neuronal cell adhesion molecules have been strongly implicated in the pathophysiology of psychiatric disorders and in modulating social behaviors associ ...

2015

Peripubertal stress-induced behavioral changes are associated with altered expression of genes involved in excitation and inhibition in the amygdala

Maria del Carmen Sandi Perez, Stamatina Tzanoulinou, Orbicia Riccio Wicht

Early-life stress is a critical risk factor for developing psychopathological alterations later in life. This early adverse environment has been modeled in rats by exposure to stress during the peripubertal period-that is, corresponding to childhood and pu ...

Nature Publishing Group2014

Breaking the Dynamics of Emotions and Fear in Conflict and Reconstruction

Maria del Carmen Sandi Perez

De Gruyter, De Gruyter2014

Long-term behavioral programming induced by peripuberty stress in rats is accompanied by GABAergic-related alterations in the amygdala

Maria del Carmen Sandi Perez, Stamatina Tzanoulinou, Vandana Veenit

Stress during childhood and adolescence is a risk factor for psychopathology. Alterations in γ-aminobutyric acid (GABA), the main inhibitory neurotransmitter in the brain, have been found following stress exposure and fear experiences and are often implica ...

Public Library of Science2014

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