Publications
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2024 |
Fernandez SEM, Karim A, Warnaar P, De Zeeuw CI, Badura A, Negrello M Purkinje cell models: past, present and future Journal Article In: Frontiers in Computational Neuroscience, vol. 18, 2024. Links | BibTeX | Tags: Brain Dynamics @article{SEM2024, |
Landsmeer L, Engelen M, Miedema R, Strydis C Tricking AI chips into simulating the human brain: A detailed performance analysis Journal Article In: Neurocomputing, 2024. Links | BibTeX | Tags: Brain Dynamics, BrainFrame @article{nokey, |
2022 |
Panagiotou S, Sidiropoulos H, Soudris D, Negrello M, Strydis C EDEN: A High-Performance, General-Purpose, NeuroML-Based Neural Simulator Journal Article In: Frontiers in Neuroinformatics, 2022. Links | BibTeX | Tags: Brain Dynamics, BrainFrame @article{S2022, |
2020 |
Romano V, Reddington AL, Cazzanelli S, Mazza R, Ma Y, Strydis C, Negrello M, Bosman LWJ, De Zeeuw CI Functional Convergence of Autonomic and Sensorimotor Processing in the Lateral Cerebellum Journal Article In: Cell Reports, vol. 32, no. 1, 2020. Abstract | Links | BibTeX | Tags: Brain Dynamics @article{V2020, The cerebellum is involved in the control of voluntary and autonomic rhythmic behaviors, yet it is unclear to what extent it coordinates these in concert. We studied Purkinje cell activity during unperturbed and perturbed respiration in lobules simplex, crus 1, and crus 2. During unperturbed (eupneic) respiration, complex spike and simple spike activity encode the phase of ongoing sensorimotor processing. In contrast, when the respiratory cycle is perturbed by whisker stimulation, mice concomitantly protract their whiskers and advance their inspiration in a phase-dependent manner, preceded by increased simple spike activity. This phase advancement of respiration in response to whisker stimulation can be mimicked by optogenetic stimulation of Purkinje cells and prevented by cell-specific genetic modification of their AMPA receptors, hampering increased simple spike firing. Thus, the impact of Purkinje cell activity on respiratory control is context and phase dependent, highlighting a coordinating role for the cerebellar hemispheres in aligning autonomic and sensorimotor behaviors. |
de Groot A, van den Boom B JG, van Genderen RM, Coppens J, van Veldhuijzen J, Bos J, Hoedemaker H, Negrello M, Willuhn I, De Zeeuw CI, Hoogland TM NINscope, a versatile miniscope for multi-region circuit investigations Journal Article In: eLife, 2020. Links | BibTeX | Tags: Brain Dynamics @article{deA2020, |
2019 |
Flierman NA, Ignashchenkova A, Negrello M, Their P, De Zeeuw CI, Badura A Glissades Are Altered by Lesions to the Oculomotor Vermis but Not by Saccadic Adaptation Journal Article In: Frontiers in Behavioral Neuroscience , vol. 13, 2019. Links | BibTeX | Tags: Brain Dynamics @article{N.A.2019, |
Negrello M, Warnaar P, Romano V, Owens CB, Lindeman S, Iavarone E, Spanke JK, Bosman LWJ, De Zeeuw CI Quasiperiodic rhythms of the inferior olive. Journal Article In: PLoS computational biology 2019 , 2019. Abstract | Links | BibTeX | Tags: Brain Dynamics @article{M2019, Inferior olivary activity causes both short-term and long-term changes in cerebellar output underlying motor performance and motor learning. Many of its neurons engage in coherent subthreshold oscillations and are extensively coupled via gap junctions. Studies in reduced preparations suggest that these properties promote rhythmic, synchronized output. However, the interaction of these properties with torrential synaptic inputs in awake behaving animals is not well understood. Here we combine electrophysiological recordings in awake mice with a realistic tissue-scale computational model of the inferior olive to study the relative impact of intrinsic and extrinsic mechanisms governing its activity. Our data and model suggest that if subthreshold oscillations are present in the awake state, the period of these oscillations will be transient and variable. Accordingly, by using different temporal patterns of sensory stimulation, we found that complex spike rhythmicity was readily evoked but limited to short intervals of no more than a few hundred milliseconds and that the periodicity of this rhythmic activity was not fixed but dynamically related to the synaptic input to the inferior olive as well as to motor output. In contrast, in the long-term, the average olivary spiking activity was not affected by the strength and duration of the sensory stimulation, while the level of gap junctional coupling determined the stiffness of the rhythmic activity in the olivary network during its dynamic response to sensory modulation. Thus, interactions between intrinsic properties and extrinsic inputs can explain the variations of spiking activity of olivary neurons, providing a temporal framework for the creation of both the short-term and long-term changes in cerebellar output. |
Vrieler N, Loyola S, Yarden-Rabinowitz Y, Hoogendorp J, Medvedev N, Hoogland TM, De Zeeuw CI, De Schutter E, Yarom Y, Negrello M, Torben-Nielsen B, Uusisaari MY Variability and directionality of inferior olive neuron dendrites revealed by detailed 3D characterization of an extensive morphological library Journal Article In: Brain structure & function, vol. 224, 2019. Abstract | Links | BibTeX | Tags: Brain Dynamics @article{N2019, The inferior olive (IO) is an evolutionarily conserved brain stem structure and its output activity plays a major role in the cerebellar computation necessary for controlling the temporal accuracy of motor behavior. The precise timing and synchronization of IO network activity has been attributed to the dendro-dendritic gap junctions mediating electrical coupling within the IO nucleus. Thus, the dendritic morphology and spatial arrangement of IO neurons governs how synchronized activity emerges in this nucleus. To date, IO neuron structural properties have been characterized in few studies and with small numbers of neurons; these investigations have described IO neurons as belonging to two morphologically distinct types, “curly” and “straight”. In this work we collect a large number of individual IO neuron morphologies visualized using different labeling techniques and present a thorough examination of their morphological properties and spatial arrangement within the olivary neuropil. Our results show that the extensive heterogeneity in IO neuron dendritic morphologies occupies a continuous range between the classically described “curly” and “straight” types, and that this continuum is well represented by a relatively simple measure of “straightness”. Furthermore, we find that IO neuron dendritic trees are often directionally oriented. Combined with an examination of cell body density distributions and dendritic orientation of adjacent IO neurons, our results suggest that the IO network may be organized into groups of densely coupled neurons interspersed with areas of weaker coupling. |
Ju C, Bosman LWJ, Hoogland TM, Velauthapillai A, Murugesan P, Warnaar P, van Genderen RM, Negrello M, De Zeeuw CI Neurons of the inferior olive respond to broad classes of sensory input while subject to homeostatic control Journal Article In: The Journal of Physiology, vol. 597, no. 9, 2019. Abstract | Links | BibTeX | Tags: Brain Dynamics @article{C2019, Cerebellar Purkinje cells integrate sensory information with motor efference copies to adapt movements to behavioural and environmental requirements. They produce complex spikes that are triggered by the activity of climbing fibres originating in neurons of the inferior olive. These complex spikes can shape the onset, amplitude and direction of movements and the adaptation of such movements to sensory feedback. Clusters of nearby inferior olive neurons project to parasagittally aligned stripes of Purkinje cells, referred to as ‘microzones’. It is currently unclear to what extent individual Purkinje cells within a single microzone integrate climbing fibre inputs from multiple sources of different sensory origins, and to what extent sensory‐evoked climbing fibre responses depend on the strength and recent history of activation. Here we imaged complex spike responses in cerebellar lobule crus 1 to various types of sensory stimulation in awake mice. We find that different sensory modalities and receptive fields have a mild, but consistent, tendency to converge on individual Purkinje cells, with climbing fibres showing some degree of input‐specificity. Purkinje cells encoding the same stimulus show increased events with coherent complex spike firing and tend to lie close together. Moreover, whereas complex spike firing is only mildly affected by variations in stimulus strength, it depends strongly on the recent history of climbing fibre activity. Our data point towards a mechanism in the olivo‐cerebellar system that regulates complex spike firing during mono‐ or multi‐sensory stimulation around a relatively low set‐point, highlighting an integrative coding scheme of complex spike firing under homeostatic control. |
Chatzikonstantis G, Sidiropoulos H, Strydis C, Negrello M, Smaragdos G, De Zeeuw CI, Soudris D Multinode implementation of an extended Hodgkin–Huxley simulator Journal Article In: Elsevier Neuroscomputing, 2019. Links | BibTeX | Tags: Brain Dynamics, BrainFrame @article{Chatzikonstantis2019, |
2017 |
Sudhakar SK, Hong S, Raikov I, Publio R, Lang C, Close T, Guo D, Negrello M, De Schutter E Spatiotemporal network coding of physiological mossy fiber inputs by the cerebellar granular layer Journal Article In: PLOS Computational Biology, 2017. Links | BibTeX | Tags: Brain Dynamics @article{SK2017, |
2016 |
Negrello M, De Schutter E Models of the Cortico-cerebellar System Book Chapter In: Neuroscience in the 21st Century, 2016. Links | BibTeX | Tags: Brain Dynamics @inbook{M2016, |
2015 |
Warnaar P, Couto J, Negrello M, Junker M, Smilgin A, Ignashchenkova A, Giugliano M, Thier P, De Schutter E Duration of Purkinje cell complex spikes increases with their firing frequency Journal Article In: Frontiers in Cellular Neuroscience, 2015. Links | BibTeX | Tags: Brain Dynamics @article{P2015, |
Kros L, Rooda OE, Spanke J, Alva P, van Dongen M, Karapatis A, Tolner E, Strydis C, Davey N, Winkelman B, Negrello M, Serdijn W, Steuber V, van den Maagdenberg A, de Zeeuw CI, Hoebeek F Cerebellar output controls generalized spike-and-wave discharge occurrence Journal Article In: Annals of Neurology, 2015. Links | BibTeX | Tags: Brain Dynamics @article{L2015, |
2014 |
Veloz MFV, Zhou K, Bosman LWJ, Potters J, Negrello M, Seepers RM, Strydis C, Koekkoek SKE, De Zeeuw CI Cerebellar control of gait and interlimb coordination Journal Article In: Brain Structure & Function (BSAF), 2014. Links | BibTeX | Tags: Brain Dynamics @article{MFV2014, |
De Gruijl JR, Sokół PA, Negrello M, de Zeeuw CI Modulation of Electrotonic Coupling in the Inferior Olive by Inhibitory and Excitatory Inputs: Integration in the Glomerulus Journal Article In: Neuron, 2014. Links | BibTeX | Tags: Brain Dynamics @article{JR2014, |
Rahmati N, Owens CB, Bosman LWJ, Spanke JK, Lindeman S, Gong W, Potters JW, Romano V, Voges K, Moscato L, Koekkoek SKE, Negrello M, De Zeeuw CI Cerebellar Potentiation and Learning a Whisker-Based Object Localization Task with a Time Response Window Journal Article In: Journal of Neuroscience, 2014. Links | BibTeX | Tags: Brain Dynamics @article{N2014b, |
2013 |
Negrello M Valentino Braitenberg: From neuroanatomy to behavior and back Journal Article In: Biological Cybernetics, 2013. Links | BibTeX | Tags: Brain Dynamics @article{M2013, |
2011 |
Negrello M Invariants of Behavior - Constancy and variability in neural systems Book Springer US., 2011. Links | BibTeX | Tags: Brain Dynamics @book{M2011, |
Pfeiffer K, Negrello M, Homberg U In: Journal of Neurophysiology, 2011. Links | BibTeX | Tags: Brain Dynamics @article{K2011, |
2010 |
Takahashi Y, Tamura Y Asada M, Negrello M Emulation and behavior understanding through shared values Journal Article In: Robotics and Autonomous Systems, 2010. Links | BibTeX | Tags: Brain Dynamics @article{Y2010, |
2008 |
Negrello M, Paseman F Attractor landscapes in active tracking (special issue: the mind as a complex adaptive system) Journal Article In: Journal of Adaptive Behavior, 2008. Links | BibTeX | Tags: Brain Dynamics @article{M2008b, |
Negrello M Attractor landscapes and modularity Journal Article In: Tri-Society Newsletters, 2008. BibTeX | Tags: Brain Dynamics @article{M2008, |
2007 |
Takahashi Y, Kawamata T, Asada M, Negrello M Emulation and behavior understanding through shared values Conference IEEE International Workshop on Intelligent Robots and Systems (IROS), 2007. Links | BibTeX | Tags: Brain Dynamics @conference{Y2007, |
Negrello M, Pasemann F Transients of active tracking: A stroll in attractor spaces Conference In Proceedings of the European Conference of Artificial Life, 2007. Links | BibTeX | Tags: Brain Dynamics @conference{M2007, |