Dr. Hubertus Becker
Stuttgart, Baden-Württemberg, Deutschland
1651 Follower:innen
500+ Kontakte
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Passionate leader skilled in safety-critical, software-defined systems, fostering…
Artikel von Dr. Hubertus Becker
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Flood relief for the Bad Neuenahr-Ahrweiler flood disaster
Flood relief for the Bad Neuenahr-Ahrweiler flood disaster
Von Dr. Hubertus Becker
Beiträge
Aktivitäten
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This week at the Bosch Proving Ground in Flat Rock, Michigan, we exhibited exciting new mobility technology, including the Powernet Guardian. The…
This week at the Bosch Proving Ground in Flat Rock, Michigan, we exhibited exciting new mobility technology, including the Powernet Guardian. The…
Beliebt bei Dr. Hubertus Becker
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I'm excited to announce that after 1.5 years of hard work, the final version of "Build A Large Language Model From Scratch" has been published. The…
I'm excited to announce that after 1.5 years of hard work, the final version of "Build A Large Language Model From Scratch" has been published. The…
Beliebt bei Dr. Hubertus Becker
Berufserfahrung
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Robert Bosch GmbH
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Ausbildung
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Eberhard-Karls-Universität Tübingen
Medical Imaging, Functional Magnetic Resonance Imaging (fMRI), Psychophysics, and Cognition Research.
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Neuroinformatics, Robotics, Digital Audio Signal Processing, Communications Research, and Phonetics.
Bescheinigungen und Zertifikate
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Github Copilot Basics
Robert Bosch GmbH
Ausgestellt: -
Leading Smart Work
Robert Bosch GmbH
Ausgestellt: -
Basics on Information Security, Cyber Security and Privacy
Robert Bosch GmbH
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Agile Product Owner
Robert Bosch GmbH
Ausgestellt: -
Management and Leadership in an Agile Organization
Robert Bosch GmbH
Ausgestellt: -
Security Engineering Process
Robert Bosch GmbH
Ausgestellt: -
Bosch Certified Product Engineering Leader (LFG)
Robert Bosch GmbH
Ausgestellt: -
Coach the Coach
Robert Bosch GmbH
Ausgestellt: -
Leading and Working in Software Engineering
Robert Bosch GmbH
Ausgestellt: -
Feedback and Coaching Competency
Robert Bosch GmbH
Ausgestellt: -
Introduction to the Collaborative Lifecycle Management (CLM) system from IBM
Robert Bosch GmbH
Ausgestellt: -
Motivation-Leistung: Kritische Personalgespräche führen
Robert Bosch GmbH
Ausgestellt: -
Einführung in die ISO 26262 und Funktionale Sicherheit
SGS-TÜV Saar
Ausgestellt:Zertifikats-ID: St/2017/0011 -
Integrated Product Engineering Process
Robert Bosch GmbH
Ausgestellt: -
Medizinprodukteberater und Sicherheitsbeauftragte gemäß §30 und §31 MG
Schrack & Partner
Ausgestellt: -
Risikomanagement und Risikoanalyse für Medizinprodukte
TÜV SÜD Akademie GmbH
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Funktionale Sicherheit von Medizinprodukten (Basis- und Aufbaukurs)
TÜV SÜD Akademie GmbH
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Capability Maturity Model Integration (CMMI) for Development V1.3
Vector Consulting Services GmbH
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iNTACS Certified ISO/IEC 15504 Provisional Assessor (Automotive SPICE)
Verband der Automobilindustrie (VDA) e.V.
Ausgestellt:Zertifikats-ID: 20415
Veröffentlichungen
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Electrical Stimulation of the Human Homolog of the Medial Superior Temporal Area Induces Visual Motion Blindness
J Neurosci, 33(46):18288-18297, 2013
Despite tremendous advances in neuroscience research, it is still unclear how neuronal representations of sensory information give rise to the contents of our perception. One of the first and also the most compelling pieces of evidence for direct involvement of cortical signals in perception comes from electrical stimulation experiments addressing the middle temporal (MT) area and the medial superior temporal (MST) area: two neighboring extrastriate cortical areas of the monkey brain housing…
Despite tremendous advances in neuroscience research, it is still unclear how neuronal representations of sensory information give rise to the contents of our perception. One of the first and also the most compelling pieces of evidence for direct involvement of cortical signals in perception comes from electrical stimulation experiments addressing the middle temporal (MT) area and the medial superior temporal (MST) area: two neighboring extrastriate cortical areas of the monkey brain housing direction-sensitive neurons. Here we have combined fMRI with electrical stimulation in a patient undergoing awake brain surgery, to separately probe the functional significance of the human homologs, i.e., area hMT and hMST, on motion perception. Both the stimulation of hMT and hMST made it impossible for the patient to perceive the global visual motion of moving random dot patterns. Although visual motion blindness was predominantly observed in the contralateral visual field, stimulation of hMST also affected the ipsilateral hemifield. These results suggest that early visual cortex up to the stage of MT is not sufficient for the perception of global visual motion. Rather, visual motion information must be mediated to higher-tier cortical areas, including hMST, to gain access to conscious perception.
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Processing of Coherent Visual Motion in Topographically Organized Visual Areas in Human Cerebral Cortex
Brain Topogr, 26(2):247-263, 2013
Recent imaging studies in human subjects have demonstrated representations of global visual motion in medial parieto-occipital cortex (area V6) and posterior parietal cortex, the latter containing at least seven topographically organized areas along the intraparietal sulcus (IPS0–IPS5, SPL1). In this fMRI study we used topographic mapping procedures to delineate a total of 18 visual areas in human cerebral cortex and tested their responsiveness to coherent visual motion under conditions of…
Recent imaging studies in human subjects have demonstrated representations of global visual motion in medial parieto-occipital cortex (area V6) and posterior parietal cortex, the latter containing at least seven topographically organized areas along the intraparietal sulcus (IPS0–IPS5, SPL1). In this fMRI study we used topographic mapping procedures to delineate a total of 18 visual areas in human cerebral cortex and tested their responsiveness to coherent visual motion under conditions of controlled attention and fixation. Preferences for coherent visual motion as compared to motion noise as well as hemispheric asymmetries were assessed for contralateral, ipsilateral, and bilateral visual motion presentations. Except for areas V1–V4 and IPS3-5, all other areas showed stronger responses to coherent motion with the most significant activations found in V6, followed by MT/MST, V3A, IPS0-2 and SPL1. Hemispheric differences were negligible altogether suggesting that asymmetries in parietal cortex observed in cognitive tasks do not reflect differences in basic visual response properties. Interestingly, areas V6, MST, V3A, and areas along the intraparietal sulcus showed specific representations of coherent visual motion not only when presented in the hemifield primarily covered by the given visual representation but also when presented in the ipsilateral visual field. This finding suggests that coherent motion induces a switch in spatial representation in specialized motion areas from contralateral to full-field coding.
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Differential dependency on motion coherence in subregions of the human MT+ complex
Eur J Neurosci, 28(8):1674-1685, 2008
The detection of coherent motion embedded in noise has been widely used as a measure of global visual motion processing. Animal studies have demonstrated that this performance is closely linked to the responses of direction-sensitive neurons in the macaque middle temporal (MT) and medial superior temporal (MST) areas. Despite the strong similarities between the visual cortex of human and that of non-human primates, the human middle temporal complex (area MT+), located in the posterior part of…
The detection of coherent motion embedded in noise has been widely used as a measure of global visual motion processing. Animal studies have demonstrated that this performance is closely linked to the responses of direction-sensitive neurons in the macaque middle temporal (MT) and medial superior temporal (MST) areas. Despite the strong similarities between the visual cortex of human and that of non-human primates, the human middle temporal complex (area MT+), located in the posterior part of the inferior temporal sulcus and presumably comprising both area MT and area MST, has not consistently been found to share the functional hallmark of MT and MST neurons, i.e. their preference for coherent rather than incoherent visual motion. In order to search for such preferences in human area MT+, blood oxygen level-dependent responses to random dot kinematograms presented in the right visual hemifield were studied here as a function of stimulus size and dot density. The stimulus extensions were varied in such a way as to cover an area either equaling, exceeding or falling below the mean receptive field size of macaque area MT. Unlike the posterior part of human area MT+, the anterior part and its right-hemisphere homolog showed significantly stronger responses to coherent than to incoherent motion. These differences were only present for large stimuli that presumably exceeded the receptive field size of neurons in area MT. Our results suggest that functional magnetic resonance imaging may reveal stronger responses to coherent visual motion in human area MST, provided that the stimulus allows for sufficient summation within the receptive fields. In contrast, functional magnetic resonance imaging may fail to reveal the same dependency for human area MT.
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Cerebral processing of emotional prosody - influence of acoustic parameters and arousal
Neuroimage, 39(2):885-893, 2007
The human brain has a preference for processing of emotionally salient stimuli. In the auditory modality, emotional prosody can induce such involuntary biasing of processing resources. To investigate the neural correlates underlying automatic processing of emotional information in the voice, words spoken in neutral, happy, erotic, angry, and fearful prosody were presented in a passive-listening functional magnetic resonance imaging (fMRI) experiment. Hemodynamic responses in right mid superior…
The human brain has a preference for processing of emotionally salient stimuli. In the auditory modality, emotional prosody can induce such involuntary biasing of processing resources. To investigate the neural correlates underlying automatic processing of emotional information in the voice, words spoken in neutral, happy, erotic, angry, and fearful prosody were presented in a passive-listening functional magnetic resonance imaging (fMRI) experiment. Hemodynamic responses in right mid superior temporal gyrus (STG) were significantly stronger for all emotional than for neutral intonations. To disentangle the contribution of basic acoustic features and emotional arousal to this activation, the relation between event-related responses and these parameters was evaluated by means of regression analyses. A significant linear dependency between hemodynamic responses of right mid STG and mean intensity, mean fundamental frequency, variability of fundamental frequency, duration, and arousal of the stimuli was observed. While none of the acoustic parameters alone explained the stronger responses of right mid STG to emotional relative to neutral prosody, this stronger responsiveness was abolished both by correcting for arousal or the conjoint effect of the acoustic parameters. In conclusion, our results demonstrate that right mid STG is sensitive to various emotions conveyed by prosody, an effect which is driven by a combination of acoustic features that express the emotional arousal in the speaker’s voice.
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Englisch
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Deutsch
Muttersprache oder zweisprachig
Weitere Aktivitäten von Dr. Hubertus Becker
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Good collaboration with a focused team! Great time.
Good collaboration with a focused team! Great time.
Beliebt bei Dr. Hubertus Becker