In: Current Opinion in Physiology, 2020, vol. 16, p. 14–20
Vision rests on computations that primarily rely on the parvocellular and magnocellular geniculate relay of retinal signals to V1. Secondary pathways involving superior colliculus, koniocellular lateral geniculate nucleus and pulvinar and their V1-bypassing projections to higher order cortex are known to exist. While they may form an evolutionary old visual system, their contribution to...
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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...
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In: Graefe's Archive for Clinical and Experimental Ophthalmology, 2014, vol. 252, no. 3, p. 367-374
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In: eNeuro, 2018, vol. 5, no. 4, p. -
Our understanding of the neurobiological underpinnings of learning and behavior relies on the use of invasive techniques, which necessitate the use of animal models. However, when different species learn the same task, to what degree are they actually producing the same behavior and engaging homologous neural circuitry? This question has received virtually no recent attention, even as the...
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In: Cell Reports, 2018, vol. 23, no. 8, p. 2405–2415
Despite well-known privileged perception of dark over light stimuli, it is unknown to what extent this dark dominance is maintained when visual transients occur in rapid succession, for example, during perception of moving stimuli. Here, we address this question using dark and light transients presented at different flicker frequencies. Although both human participants and tree shrews...
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In: Brain Structure and Function, 2008, vol. 212, no. 6, p. 443-463
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In: Graefe's Archive for Clinical and Experimental Ophthalmology, 2005, vol. 243, no. 9, p. 917-925
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In: Glia, 2018, vol. 66, no. 3, p. 477–491
Astrocytes play an important role in glutamatergic neurotransmission, namely by clearing synaptic glutamate and converting it into glutamine that is transferred back to neurons. The rate of this glutamate–glutamine cycle (VNT) has been proposed to couple to that of glucose utilization and of neuronal tricarboxylic acid (TCA) cycle. In this study, we tested the hypothesis that glutamatergic...
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In: Brain Structure and Function, 2017, vol. 222, no. 9, p. 4239–4252
Brain state has profound effects on neural processing and stimulus encoding in sensory cortices. While the synchronized state is dominated by low-frequency local field potential (LFP) activity, low-frequency LFP power is suppressed in the desynchronized state, where a concurrent enhancement in gamma power is observed. Recently, it has been shown that cortical desynchronization co-occurs with ...
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In: Cerebral Cortex, 2000, vol. 10, no. 8, p. 817-825
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