2015/Lectures

HAC15

Date: Wed July 1

Speaker: Lucas Perra (CUNY)

Title: Brains on Video

Abstract: Research on human brain function often studies the relationship between neural activity and specific events in the world, such as flashes, beeps, button pushes and associated features such as contrast, frequency, reaction time, etc. We decided to abandon this conventional approach and looked instead at responses of the brain to ongoing natural stimuli, and in particular, video. We found that when an audience watches video, their fast encephalographic brain responses are similar, however, only if the audience is paying attention! The effect is so strong that we can detect an audience's attentional engagement in segments as short as 5 seconds. Indeed, similarity of encephalographic responses is predictive of a number of behaviors that presumably correlated with viewer's attention, such as whether they continue watching a program, whether they 'like' certain ad segments, whether they decide to 'tweet' about it, and whether they remember the content weeks after they saw it. We believe that analyzing fast ongoing neural activity in response to natural stimuli has tremendous potential for basic inquiry into the functioning of the human brain, and has evident and important practical implications.

Date: Monday July 2

Speaker: Nima Mesgarani

Title:

Date: Monday July 9

Speaker: David Anderson

Title:

Date: Wed July 10

Speaker: Thomas Lunner (Oticon and Linköping University)

Title: Hearing impairment, hearing aids and cognition.

Topics covered: - Hearing loss consumes working memory resources - Binary mask noise reduction in hearing aids may regain working memory resources - Alpha power oscillations as a marker of listening effort - Alpha power oscillations breaks down if listening is severely challenged - About hearing aids and neuro-feedback (short intro)

Date: Monday July 13

Speaker: Shih-Chii Liu

Title: Silicon cochlea technology and hardware spiking deep belief networks

Date: Tuesday July 14

Speaker: Alain de Cheveigne

Title: Scale, Time, Memory, Modulation

SCC15

Date: Monday July 13

MFA15

Date: Monday July 6

Speaker: Arko Ghosh and Nobuhiro Hagura

Title: Linking Action and Perception

Date: Thursday July 9

Speaker: Bert Shi

Title: Modelling natural eye gaze for hybrid brain machine interfaces

Speaker: Andreas Andreou

Title: Human action recognition without cameras

Abstract: The first step towards engineering machines capable of smoothly interacting with human beings is the development of sensory processing systems that can operate in natural environments and recognize human actions. To do this reliably, we must engineer solutions to robustly handle the wide range of complexity exhibited by actions and the contextual variability resulting from both the objects involved in the action and the vantage point of the observer. To overcome these challenges, biology has evolved several mechanisms. One of the primary scientific questions addressed by our work central to pattern analysis and machine intelligence is whether having a symbolic model of the physical objects of interest is sufficient to bootstrap low-dimensional, impoverished sensory data allowing machines to make inferences about a complex, higher-dimensional, structures in the natural environment (human actions).

NLP15

Date: Thursday July 2

Speaker: Sergio Davis

Title: Why use PyNN and SpiNNaker for simulating Spiking Neural Networks

Date: Friday July 10

Speaker: Ernst Niebur

Title: Attention

Date: Tuesday July 14

Speaker: Chris Hyuck

Title: Cell Assemblies and Natural Language Processing