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Université de Fribourg

Striatal responsiveness to reward under threat‐of‐shock and working memory load : A preliminary study

Gaillard, Claudie ; Guillod, Matthias ; Ernst, Monique ; Torrisi, Salvatore ; Federspiel, Andrea ; Schoebi, Dominik ; Recabarren, Romina E. ; Ouyang, Xinyi ; Mueller-Pfeiffer, Christoph ; Horsch, Antje ; Homan, Philipp ; Wiest, Roland ; Hasler, Gregor ; Martin-Soelch, Chantal

In: Brain and Behavior, 2019, no. 9, p. 1-21

Introduction: Reward and stress are important determinants of motivated behaviors. Striatal regions play a crucial role in both motivation and hedonic processes. So far, little is known on how cognitive effort interacts with stress to modulate reward processes. This study examines how cognitive effort (load) interacts with an unpredictable acute stressor (threat-of-shock) to modulate motivational...

Université de Fribourg

Dissociated lateralization of transient and sustained blood oxygen level-dependent signal components in human primary auditory cortex

Lehmann, Christoph ; Herdener, Marcus ; Schneider, Peter ; Federspiel, Andrea ; Bach, Dominik R. ; Esposito, Fabrizio ; di Salle, Francesco ; Scheffler, Klaus ; Kretz, Robert ; Dierks, Thomas ; Seifritz, Erich

In: NeuroImage, 2007, vol. 34, no. 4, p. 1637-1642

Among other auditory operations, the analysis of different sound levels received at both ears is fundamental for the localization of a sound source. These so-called interaural level differences, in animals, are coded by excitatory–inhibitory neurons yielding asymmetric hemispheric activity patterns with acoustic stimuli having maximal interaural level differences. In human auditory cortex, the...