Contextual reasoning in man and machines

Post author By klab coordinator
Post date August 12, 2021

Flash presentation by Prof. Gabriel Kreiman in the SciFoo conference 2021

See also:

Bomatter P, Zhang M, Karev D, Madan S, Tseng C, Kreiman G (2021). When Pigs Fly: Contextual Reasoning in Synthetic and Natural Scenes. International Conference on Computer Vision (ICCV) arXiv 2104.02215. PDF

Zhang M, Tseng C, Kreiman G. (2020) Putting visual object recognition in context. CVPR. PDF

Tags AI, biological intelligence, common sense, contextual cues, scene understanding, SciFoo, visual recognition

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19	20	21 Kreiman Lab Meeting … Kreiman Lab Meeting -- Will Xiao September 21, 2022 4:00 pm - 6:00 pm Dr Gabriel Kreiman is inviting you to a scheduled Zoom meeting. Topic: KLAB lab meeting Time: Oct 14, 2020 12:00 PM Eastern Time (US and Canada) Every week on Wed, until Nov 4, 2020, 4 occurrence(s) Oct 14, 2020 12:00 PM Oct 21, 2020 12:00 PM Oct 28, 2020 12:00 PM Nov 4, 2020 12:00 PM See more details •	22 Systems Club: Prof. … Systems Club: Prof. Erginkaya September 22, 2022 4:15 pm - 5:15 pm Sysclub this week is happy to host Mert Erginkaya, a guest of the Lee lab from Champalimaud, who will discuss "Central circuits supporting visual self-motion estimation in Drosophila". The talk will take place on Thursday, 22/09 at 12:15 in WAB 236. Central circuits supporting visual self-motion estimation in Drosophila Sensory experience critically depends on our own movement: the brain must incorporate information about self-motion to guide behavior, or discount self-generated sensory signals to improve the salience of relevant signals. How do sensorimotor circuits process self-generated signals in different ways to meet specific demands? Neurons that are sensitive to patterns of retinal visual flow generated by self-motion have been found in many animals, from humans to insects. We took advantage of the genetic and connectomic toolkit of Drosophila to functionally characterize the circuitry of a prominent class of visual flow-sensitive neurons – LPTCs – in the brain. We found that LPTC circuits are organized into two major subnetworks that contact distinct populations of central and descending neurons. Functional imaging from key interneurons revealed their sensitivity to visual flow generated by forward or turning movements. In addition, these neurons display congruent tuning to forward walking and turning in darkness, signifying their relevance as a hub for integration of visual and nonvisual self-motion signals. The combination of the circuit architecture and functional responses suggests that these subnetworks may be used to monitor angular deviations and elicit turns to maintain a straight course, or to modulate the sensitivity to visual flow induced by voluntary turns, respectively. Altogether, our results show two central subnetworks downstream of LPTCs that process patterns of translational and rotational optic flow, which in combination with non-visual signals modulate the activity of visuomotor circuits according to the ongoing task of an animal moving through space. See more details •	23	24	25
26	27 CBS Seminar: Establi… CBS Seminar: Establishing tools to study the emergence of cellular diversity in the human brain September 27, 2022 4:00 pm - 5:00 pm Tues. 9/27 at noon in NW B103 or via zoom: CBS Seminar with Tomasz Nowakowski- Establishing tools to study the emergence of cellular diversity in the human brain Barbara L. Perlo is inviting you to a scheduled Zoom meeting. Topic: Tomasz Nowakowski Time: Sep 27, 2022, 12:00 PM Eastern Time (US and Canada) See more details •	28 Kreiman Lab Meeting … Kreiman Lab Meeting -- Dianna Hidalgo September 28, 2022 4:00 pm - 6:00 pm Dr Gabriel Kreiman is inviting you to a scheduled Zoom meeting. Topic: KLAB lab meeting Time: Oct 14, 2020 12:00 PM Eastern Time (US and Canada) Every week on Wed, until Nov 4, 2020, 4 occurrence(s) Oct 14, 2020 12:00 PM Oct 21, 2020 12:00 PM Oct 28, 2020 12:00 PM Nov 4, 2020 12:00 PM See more details •	29	30

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