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Université de Fribourg

Role of the thalamus in basal forebrain regulation of neural activity in the primary auditory cortex

Azimi, Hamid ; Klaassen, Arndt-Lukas ; Thomas, Kevin ; Harvey, Michael A. ; Rainer, Gregor

In: Cerebral Cortex, 2020, vol. 30, no. 8, p. 4481–4495

Many studies have implicated the basal forebrain (BF) as a potent regulator of sensory encoding even at the earliest stages of or cortical processing. The source of this regulation involves the well-documented corticopetal cholinergic projections from BF to primary cortical areas. However, the BF also projects to subcortical structures, including the thalamic reticular nucleus (TRN), which...

Bibliothèque cantonale jurassienne

Upper Triassic dinosaur tracks from the Dolomites : new dating and material : oral presentation

Belvedere, Matteo

In: Annual meeting of the European Association of Vertebrate Palaeontologists, 2010, p. 19

Université de Fribourg

Noise in brain activity engenders perception and influences discrimination sensitivity

Bernasconi, Fosco ; De Lucia, Marzia ; Tzovara, Athina ; Manuel, Aurelie L. ; Murray, Micah M. ; Spierer, Lucas

In: The Journal of Neuroscience, 2011, vol. 31, no. 49, p. 17971-17981

Behavioral and brain responses to identical stimuli can vary with experimental and task parameters, including the context of stimulus presentation or attention. More surprisingly, computational models suggest that noise-related random fluctuations in brain responses to stimuli would alone be sufficient to engender perceptual differences between physically identical stimuli. In two experiments...

Université de Fribourg

Synaptic influences of pontine nuclei on cochlear nucleus cells

Babalian, Alexander L.

In: Experimental Brain Research, 2006, vol. 167, no. 3, p. 451-457

Using the in vitro isolated whole brain preparation of the guinea pig, we tested the synaptic effects induced by the stimulation of pontine nuclei (PN) in intracellularly recorded and stained principal cells of the cochlear nucleus (CN). Twenty percent of the recorded cells in all CN subdivisions responded to stimulation of either ipsilateral or contralateral PN, and 12% of the cells...