Tag: feature attention

Mind, Brain, and Behavior Poster Showcase

Post author By klab coordinator
Post date April 25, 2019

Mind, Brain, and Behavior poster showcase. William James Hall Library.

Duncan Stothers on “A Deep Learning Model for CNS Development” and Farahnaz Wick on “A computational model of hybrid visual search“

Tags computational models, cortical development, feature attention, Harvard MBB, invariant visual search network, IVSN, neural networks, synaptic pruning, synaptogenesis

Kreiman Lab News

Finding any Waldo: Zero-shot invariant visual search

Post author By klab coordinator
Post date March 7, 2019

Finding any Waldo: Zero-shot invariant visual search. Gabriel Kreiman @ Systems Neuroscience Club.

Tags AI, artificial intelligence, feature attention, IVSN, neural networks, psychophysics, visual invariance, where is waldo

Kreiman Lab News

Finding any Waldo: zero-shot invariant and efficient visual search

Post author By gabriel kreiman
Post date September 23, 2018

Mengmi Zhang proposed a biologically inspired computational algorithm that can find novel objects in scenes without any prior training. Nature Communications 2018.

Zhang M, Feng J, Ma KT, Lim JH, Zhao Q, Kreiman G. (2018) Finding any Waldo: zero-shot invariant and efficient visual search. Nature Communications, 9:3730.

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Tags feature attention, few shot learning, IVSN, object detection, object localization, pre-frontal cortex, top-down modulation, visual cortex

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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

September 2022