Research Topics
| Bruno B AverbeckSummaryAffiliation: University College London Country: UK Publications
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Detail Information
Publications
Integration of social and utilitarian factors in decision makingBruno B Averbeck
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University London College, London, UK
Emotion 9:599-608. 2009..Nevertheless, participants also integrated the feedback information. As such, their decisions were a composite of social and utilitarian factors...
Probabilistic encoding of vocalizations in macaque ventral lateral prefrontal cortexBruno B Averbeck
Center for Visual Science, Department of Brain and Cognitive Sciences, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
J Neurosci 26:11023-33. 2006..This provides evidence that, for call recognition, the macaque auditory system likely performs dynamic processing of vocalizations, and that prefrontal auditory neurons carry a signal related to the output of this processing...- Prefrontal neural correlates of memory for sequencesBruno B Averbeck
Department of Brain and Cognitive Sciences, Center for Visual Science, University of Rochester, Rochester, New York 14627, USA
J Neurosci 27:2204-11. 2007.... 
The statistical neuroanatomy of frontal networks in the macaqueBruno B Averbeck
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London, United Kingdom
PLoS Comput Biol 4:e1000050. 2008....- Differential contribution of superior parietal and dorsal-lateral prefrontal cortices in copyingBruno B Averbeck
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London, UK
Cortex 45:432-41. 2009..Thus, this neurophysiological evidence suggests that both SPC and caudal dlPFC have a role in drawing, but that SPC plays a larger role in both the cognitive and the motor components... - Poisson or not Poisson: differences in spike train statistics between parietal cortical areasBruno B Averbeck
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London, UK
Neuron 62:310-1. 2009..Specifically, they show that there are differences in the amount of periodic structure in spike trains across cortical areas, with multimodal sensory areas being more regular than visual areas... - Neural correlates of sequence learning with stochastic feedbackBruno B Averbeck
University College London Institute of Neurology, Sobell Department, London, UK
J Cogn Neurosci 23:1346-57. 2011..We also localized the sources of these effects and found that the early effect localized to the insula, whereas the late effect localized to the premotor cortex... - Statistical analysis of parieto-frontal cognitive-motor networksBruno B Averbeck
University College London, Institute of Neurology, Sobell Department of Motor Neuroscience and Movement Disorders, Box 28, Queen Square, London WC1N 3BG, UK
J Neurophysiol 102:1911-20. 2009..Thus we found substantial statistical structure and organization in the parieto-frontal network that gives a simplified but accurate description of this system... - Effects of noise correlations on information encoding and decodingBruno B Averbeck
Department of Brain and Cognitive Sciences, Center for Visual Science, University of Rochester, Rochester, New York 14627, USA
J Neurophysiol 95:3633-44. 2006..Finally, as predicted theoretically, the effects of correlations were slightly greater for larger ensembles (3-8 neurons) than for pairs of neurons... - Effects of dopamine depletion on information flow between the subthalamic nucleus and external globus pallidusAna V Cruz
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London, UK
J Neurophysiol 106:2012-23. 2011..Results thus indicate that information flow around the STN-GPe circuit is exaggerated in Parkinsonism and further define the temporal interactions underpinning this... - Effects of dopamine on sensitivity to social bias in Parkinson's diseaseAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University College London, London, United Kingdom
PLoS ONE 7:e32889. 2012..PD patients with ICBs on medication also showed more learning from negative feedback and less from positive feedback, whereas off medication they showed the opposite effect... - Risk and learning in impulsive and nonimpulsive patients with Parkinson's diseaseAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute of Neurological Studies, UCL Institute of Neurology, London, UK
Mov Disord 25:2203-10. 2010..Thus, medication status and an impulsive behavioral diagnosis differentially affect several behaviors in PD... - Decision making, impulsivity, and addictions: do Parkinson's disease patients jump to conclusions?Atbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University of London, London, United Kingdom
Mov Disord 27:1137-45. 2012..Our results also suggest that intact cortical processing and less distractibility in PD patients without ICBs may protect them from developing behavioral addictions... - Activity in prefrontal cortex during dynamic selection of action sequencesBruno B Averbeck
Department of Brain and Cognitive Sciences, Center for Visual Science, University of Rochester, Rochester, New York 14627, USA
Nat Neurosci 9:276-82. 2006..Thus, the neural activity dynamically tracked the monkeys' uncertainty about the correct sequence of actions. These results are consistent with prefrontal involvement in representing subjective knowledge of the correct action sequence... - Effects of emotional preferences on value-based decision-making are mediated by mentalizing and not reward networksSimon Evans
UCL Institute of Neurology, London, UK
J Cogn Neurosci 23:2197-210. 2011..We conclude that the impact of social stimuli on value-based decision processes is mediated by effects in brain regions partially separable from classical reward circuitry... - Stroop test performance in impulsive and non impulsive patients with Parkinson's diseaseAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University of London, London, United Kingdom
Parkinsonism Relat Disord 17:212-4. 2011.... - Novelty seeking behaviour in Parkinson's diseaseAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University of London, London, United Kingdom
Neuropsychologia 49:2483-8. 2011..Our findings suggest that attraction to novelty is a personality trait in all PD patients with ICBs which is independent of medication status... - Integration of auditory and visual communication information in the primate ventrolateral prefrontal cortexTadashi Sugihara
Department of Neurobiology, University of Rochester Medical Center, Rochester, New York 14642, USA
J Neurosci 26:11138-47. 2006.... - Salivary cortisol levels in Parkinson's disease and its correlation to risk behaviourAtbin Djamshidian
Reta Lila Weston Institute of Neurological Studies and Queen Square Brain Bank for Neurological Diseases, University College London, London, UK
J Neurol Neurosurg Psychiatry 82:1107-11. 2011..To investigate salivary cortisol samples in patients with Parkinson's disease (PD) with and without impulsive compulsive behaviours (ICB) during a risk task... - Neural representation of vocalizations in the primate ventrolateral prefrontal cortexLizabeth M Romanski
Department of Neurobiology and Anatomy, University of Rochester, Rochester, NY 14642, USA
J Neurophysiol 93:734-47. 2005..These data are consistent with a role for the primate vlPFC in assessing distinctive acoustic features... - Increased reflection impulsivity in patients with ephedrone-induced ParkinsonismAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University of London, London, UK
Addiction 108:771-9. 2013..Routine neuropsychological assessment has revealed no cognitive deficits, despite widespread abnormalities on brain imaging studies and severe extrapyramidal motor handicap on clinical examination... - Coding and transmission of information by neural ensemblesBruno B Averbeck
Department of Brain and Cognitive Sciences, Center for Visual Science, University of Rochester, Rochester, NY 14627, USA
Trends Neurosci 27:225-30. 2004.... - Neural noise and movement-related codes in the macaque supplementary motor areaBruno B Averbeck
Department of Brain and Cognitive Sciences and Center for Visual Science, University of Rochester, Rochester, New York 14627, USA
J Neurosci 23:7630-41. 2003..These results suggest that in some SMA neurons elements of the spatiotemporal pattern of activity may be relevant for neural coding... - Oxytocin decreases aversion to angry faces in an associative learning taskSimon Evans
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London, UK
Neuropsychopharmacology 35:2502-9. 2010..We found that oxytocin specifically decreased aversion to angry faces, without affecting integration of positive or negative financial feedback or choices related to happy vs sad faces... - Principal and independent components of macaque vocalizations: constructing stimuli to probe high-level sensory processingBruno B Averbeck
Center for Visual Science, Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY 14627, USA
J Neurophysiol 91:2897-909. 2004..This novel approach provides a powerful method for determining the essential features within complex stimuli that activate higher-order sensory neurons... - The primate cortical auditory system and neural representation of conspecific vocalizationsLizabeth M Romanski
Department of Neurobiology and Anatomy, University of Rochester School of Medicine, Rochester, New York 14642, USA
Annu Rev Neurosci 32:315-46. 2009.... - Clinical aspects of impulsive compulsive behaviours in Parkinson's diseaseAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University of London, London, UK
J Neurol Sci 310:183-8. 2011.... - Effects of dopamine depletion on network entropy in the external globus pallidusAna V Cruz
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
J Neurophysiol 102:1092-102. 2009..Thus it is possible that reduced information coding capacity within basal ganglia networks may contribute to the behavioral deficits accompanying PD... - Neural correlations, population coding and computationBruno B Averbeck
Department of Brain and Cognitive Sciences and Center for Visual Science, University of Rochester, Rochester, New York 14627, USA
Nat Rev Neurosci 7:358-66. 2006..Here, we review studies that address the interaction between neuronal noise and population codes, and discuss their implications for population coding in general... - Performance on a probabilistic inference task in healthy subjects receiving ketamine compared with patients with schizophreniaSimon Evans
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, London, UK
J Psychopharmacol 26:1211-7. 2012..Ketamine does not appear to promote JTC in healthy controls, suggesting that ketamine does not affect probabilistic inferences... - Altruistic punishment in patients with Parkinson's disease with and without impulsive behaviourAtbin Djamshidian
Department of Molecular Neuroscience and Reta Lila Weston Institute for Neurological Studies, University of London, London, United Kingdom
Neuropsychologia 49:103-7. 2011..These results suggest a role for dopamine in altruistic punishment decisions in PD patients with impulsive compulsive behaviour... - Learning and production of movement sequences: behavioral, neurophysiological, and modeling perspectivesBradley J Rhodes
Department of Cognitive and Neural Systems, Boston University, 677 Beacon Street, Boston, MA 02215, USA
Hum Mov Sci 23:699-746. 2004..An extended CQ simulation model--the N-STREAMS neural network model--exemplifies ongoing attempts to accommodate a broad range of both behavioral and neurobiological data within a CQ-consistent theory... - Parallel processing of serial movements in prefrontal cortexBruno B Averbeck
Brain Sciences Center, Veterans Affairs Medical Center, Minneapolis, MN 55417, USA
Proc Natl Acad Sci U S A 99:13172-7. 2002.... - Neural activity in prefrontal cortex during copying geometrical shapes. I. Single cells encode shape, sequence, and metric parametersBruno B Averbeck
Brain Sciences Center, Veterans Affairs Medical Center, Minneapolis, MN 55417, USA
Exp Brain Res 150:127-41. 2003..These findings indicate that, within the copying task, the serial segment position is a key factor for neural activity in the periprincipalis area of the prefrontal cortex... - Neural ensemble decoding reveals a correlate of viewer- to object-centered spatial transformation in monkey parietal cortexDavid A Crowe
Department of Neuroscience, University of Minnesota Medical School, Minneapolis, Minnesota 55455, USA
J Neurosci 28:5218-28. 2008..These results are consistent with the hypothesis that either area 7a, or an area that precedes area 7a in the visual processing hierarchy, is performing the retina- to object-centered transformation... - Participation of primary motor cortical neurons in a distributed network during maze solution: representation of spatial parameters and time-course comparison with parietal area 7aDavid A Crowe
Brain Sciences Center (11B, Veterans Affairs Medical Center, One Veterans Drive, MN 55417, Minneapolis, USA
Exp Brain Res 158:28-34. 2004.... - Neural activity in prefrontal cortex during copying geometrical shapes. II. Decoding shape segments from neural ensemblesBruno B Averbeck
Brain Sciences Center (11B, Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, MN 55417, USA
Exp Brain Res 150:142-53. 2003..Each neuron conveyed information about multiple segments within the drawing trajectory, suggesting that neurons were 'broadly tuned' across segments and that the neural code of segment was distributed... - Parietal representation of hand velocity in a copy taskBruno B Averbeck
Brain Sciences Center, Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, MN 55417, USA
J Neurophysiol 93:508-18. 2005..Thus ensemble neural responses in superior parietal cortex provide a high-fidelity, linear representation of hand kinematics within our task... - Neural activity in primate parietal area 7a related to spatial analysis of visual mazesDavid A Crowe
Brain Sciences Center (11B, Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, MN 55417, USA
Cereb Cortex 14:23-34. 2004.... - Neural correlates of spatial judgement during object construction in parietal cortexMatthew V Chafee
Brain Sciences Center, Veterans Affairs Medical Center, Minneapolis, MN 55417, USA
Cereb Cortex 15:1393-413. 2005.... - Representing spatial relationships in posterior parietal cortex: single neurons code object-referenced positionMatthew V Chafee
Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA
Cereb Cortex 17:2914-32. 2007..This provides evidence that the activity of a subpopulation of parietal neurons active in the construction task represented relative position as referenced to an object and not absolute position with respect to the viewer... - Dynamics of parietal neural activity during spatial cognitive processingDavid A Crowe
Brain Sciences Center, Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, Minnesota 55417, USA
Neuron 47:885-91. 2005..The data suggest that the dynamic evolution of parietal neuronal activity is associated with the progression of spatial cognitive operations...