Jennifer Kemp
University of Strasbourg
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Jennifer Kemp.
Ageing Research Reviews | 2012
Jennifer Kemp; Olivier Després; François Sellal; André Dufour
This paper reviews findings in three subcomponents of social cognition (i.e., Theory of Mind, facial emotion recognition, empathy) during ageing. Changes over time in social cognition were evaluated in normal ageing and in patients with various neurodegenerative pathologies, such as Alzheimers disease, mild cognitive impairment, frontal and temporal variants of frontotemporal lobar degeneration and Parkinsons disease. Findings suggest a decline in social cognition with normal ageing, a decline that is at least partially independent of a more general cognitive or executive decline. The investigation of neurodegenerative pathologies showing specific deficits in Theory of Mind in relation to damage to specific cerebral regions led us to suggest a neural network involved in Theory of Mind processes, namely a fronto-subcortical loop linking the basal ganglia to the regions of the frontal lobes.
European Journal of Pain | 2015
S. Zhou; Jennifer Kemp; Olivier Després; Thierry Pebayle; André Dufour
Age‐related alterations in both pain perception and inhibitory functions have been observed, but the relationship between the two in older adults remains unclear. Previous studies were mainly based on behavioural measures which do not allow assessment of underlying neural mechanisms.
Neuropsychology (journal) | 2016
Ségolène Lithfous; Delphine Tromp; André Dufour; Jennifer Kemp; François Sellal; Olivier Després
OBJECTIVE In tasks involving hierarchical stimuli, young subjects typically show faster RTs and higher accuracy rates in discriminating target stimuli at the global level than at the local level. This pattern of performance is called the global precedence effect (GPE). As individuals age, this patterns shifts to a local precedence effect (LPE). The purpose of this study was to determine whether the decline in GPE in older adults may be due to impairment of grouping processes. METHOD The authors recorded event-related potentials (ERP) while young and elderly subjects performed a global/local task in response to hierarchical stimuli, and they focused on the P300 component as an index of grouping processes. RESULTS Compared to young subjects, elderly individuals showed a lower rate of correct discrimination in global processing conditions, but a higher rate of correct responses in local processing conditions, confirming a shift from a GPE to a LPE during aging. Interestingly, the P300 amplitude increased selectively during global processing in young adults but was not modulated by processing level in older participants. By contrast, the modulation of the early component N2 as a function of precedence level remained preserved in older subjects. CONCLUSION The results suggest that the precedence level may depend on early processes that are unaffected during aging. This may explain the preservation of local precedence effect in elderly individuals. However, global processing may depend on extra attentional processing occurring at later stages. The alteration of later processing may explain the decline in global precedence during aging. (PsycINFO Database Record
Psychophysiology | 2014
Jennifer Kemp; Olivier Després; Thierry Pebayle; André Dufour
Aging is associated with changes in thermosensitivity and decreases in the functionality of the autonomic thermoregulation. The underlying mechanisms are, however, not fully understood. Elderly subjects may undergo functional changes in the integration process of the thermal sensory system, especially in their thermal adaptation capacities. To verify this hypothesis, we compared thermal evoked responses in younger and older subjects exposed to thermoneutral (27 °C) and warm (30 °C) environments. In the warm environment, the amplitudes of thermal evoked potentials (EPs) were significantly lower in older than in younger subjects, whereas in the thermoneutral environment, the EP amplitudes were similar in both groups. These findings suggest that thermal adaptation capacities are reduced in elderly individuals, due to a dysfunction of C-fibers with aging, particularly expressed by lowered adaptation capacities to temperature variations.
Cortex | 2013
Jennifer Kemp; Marie-Camille Berthel; André Dufour; Olivier Després; Audrey Henry; I.J. Namer; Mariano Musacchio; François Sellal
Alzheimer's Research & Therapy | 2017
Jennifer Kemp; Nathalie Philippi; Clélie Phillipps; Catherine Demuynck; Timothée Albasser; Catherine Martin-Hunyadi; Catherine Schmidt-Mutter; Benjamin Cretin; Frédéric Blanc
Alzheimers & Dementia | 2018
Nathalie Philippi; Vincent Noblet; Malik Hamdaoui; Emmanuelle Ehrhard; Anne Botzung; Morgane Constans-Erbs; Jennifer Kemp; Laetitia Monjoin; Timothée Albasser; Mathias Bilger; David Soulier; Catherine Demuynck; Catherine Martin-Hunyadi; Benjamin Cretin; Frédéric Blanc
Gériatrie et Psychologie Neuropsychiatrie du Vieillissement | 2017
Nathalie Philippi; Jennifer Kemp; Morgane Constans-Erbs; Malik Hamdaoui; Laetitia Monjoin; Emmanuelle Ehrhard; Timothée Albasser; Anne Botzung; Catherine Demuynck; Géraldine Heim; Catherine Martin-Hunyadi; Mathias Bilger; Laetitia Berly; David Soulier; Benjamin Cretin; Olivier Després; Frédéric Blanc
Gériatrie et Psychologie Neuropsychiatrie du Vieillissement | 2017
Jennifer Kemp; Nathalie Philippi; Clélie Phillipps; Anne Botzung; Frédéric Blanc
Alzheimers & Dementia | 2017
Anne Botzung; Nathalie Philippi; Morgane Constans-Erbs; Jennifer Kemp; Malik Hamdaoui; Emmanuelle Ehrhard; Géraldine Heim; Laetitia Monjoin; Timothée Albasser; Mathias Bilger; David Soulier; Olivier Després; Catherine Demuynck; Catherine Martin-Hunyadi; Benjamin Cretin; Frédéric Blanc