Lab meeting schedule
Instructions
Lab meetings are fridays at 10:30am in 10 Giannini. 1/2 hour 'business' stuff followed by a scientific presentation.
The presenter on the list can talk about his own work or a paper (send pdf out to the group a couple of days before). Fill in your title/abstract as soon as you know what you'll be talking about. It doesn't have to be anything fancy, just a line or two so we know what you'll be talking about. E.g. I'll talk about my analysis of blablabla, or I'll present 'paper title'.
If you haven't filled in anything, I'll remind you a week before lab meeting. But I have better things to do than being lab meeting nazi, so please get your act together.
You're welcome to switch dates individually, but talk to the one you're switching with.
--Thomas 12:48, 13 April 2006 (PST)
Lab meeting list
2008
february 1
- Speaker: Gianluca
- Title/abstract:
february 8
- Speaker: Tim
- Title/abstract:
february 15
- Speaker: Thomas
- Title/abstract:
february 22
- Speaker: Jack
- Title/abstract:
february 29
- Speaker: No meeting, Cosyne
- Title/abstract:
3/7
- Speaker: Paul Ivanov
- Title/abstract:
3/14
- Speaker: Kilian
- Title/abstract:
3/21
- Speaker: Chetan
- Title/abstract:
3/28
- Speaker: Jimmy
- Title/abstract:
4/4
- Speaker: Charles
- Title/abstract:
4/11
- Speaker: Bruno
- Title/abstract:
4/18
- Speaker: Amir
- Title/abstract:
4/25
- Speaker: Fritz
- Title/abstract:
5/2
- Speaker: Pierre
- Title/abstract:
5/9
- Speaker: Mike D
- Title/abstract:
Previous Lab meetings
2008
january 4
- Speaker: no meeting
- Title/abstract:
january 11
- Speaker: Vivienne
- Title: A theoretical model of specific language impairment
- Abstract: Some form of developmental speech or language disorders affecting as many as 5-10% of all children (Leonard, 1998). While many disorders have been associated with specific problems in cognitive or linguistic development, specific language impairment (SLI) describes children with significantly delayed acquisition of language without evidence of brain damage, impaired hearing or vision, schizophrenia, autism or other neurological disorders (Tallal, 2004). As such, children with SLI show extreme difficulty in early language acquisition while other cognitive abilities appear to fall within the population norm. In many earlier theories of SLI, high-level, language-specific deficits were often hypothesized as the underlying cause of the delayed learning; however, findings over the last decade suggest that a more generic auditory deficit underlies the degraded phonological processing associated with SLI children (Leonard, 1998; Tallal et al., 1993, 1996, 1998; Wright et al.., 2000). Much of this literature indicates that impaired perception and discrimination of rapidly changing components of both speech and nonspeech stimuli undermines development of normal language abilities (Godfrey et al., 1981; Kraus et al.., 1996; McAnally & Stein, 1997; Nagarajan et al., 1999; Reed, 1989; Snowling et al.., 1986; Stark & Heinz, 1996a, 1996b; Werker & Tees, 1987; Wright et al., 2000; Goswami et al., 2002, Gaad et al., 2006), although some findings have questioned these findings (Heath & Hogben, 2004; White, Milne, et al., 2006; White, Frith, et al., 2006). Even within this body of research, there exist differing theories about the nature of the underlying deficit. Some groups have agued that deficits in rapid auditory processing (RAP) leads to impairment in the ability to perceive sounds characterized by brief or rapidly changing temporal cues, fundamental to speech perception (Fitch, et al., 1997; Benasich et al., 2002; Tallal et al., 2004), while an alternate hypothesis proposes that SLI develops due to a deficit in the perception of rhythmic timing (Goswami, 2002), which might subserve speech segmentation during language development. Neuroanatomical research suggests that deficits associated with SLI may well emerge in relatively low-level, subcortical auditory processing (Benasich et al., 2002). Here we propose a simple model of low-level auditory processing capable of explaining some of the specific deficits identified in SLI populations associated with both RAP and rhythmic perception. In this “spike coding” model (Smith & Lewicki, 2005 & 2006) sounds are decomposed into a highly sparse set of “spikes” representing the occurrence of acoustic events selected from a dictionary of learned acoustic features (kernel functions). Importantly, by optimizing these acoustic features to efficiently encode natural sounds the resulting code partitions time-frequency space in an identical fashion to the mammalian cochlear code (Smith & Lewicki, 2006). This model predicts that the peripheral auditory code should contain a diverse set of coding units, with some devoted to accurately tracking acoustic transients while others are devoted to tight frequency resolution. The research proposed here uses a combination of behavioral experiments and computation modeling to test whether deficits in RAP and rhythmic perception both emerge in this model from a disruption of the units responsible for tracking acoustic transients.
january 18
- Speaker: Chris
- Title/abstract:
january 25
- Speaker: Tony
- Title/abstract:
2007
January 5
- Speaker: Jack
- Title/abstract:
january 12
- Speaker: Jascha
- Title/abstract:
january 19
- Speaker: Scott Makeig
- Title/abstract:
january 26
- Walter Freeman symposium (no meeting)
february 2
- Speaker: Charles
- Title/abstract:
february 9
- Speaker: Frank Wood (Grad student in Michael Black's group)
- Title/abstract:
february 16
- Speaker: Cosyne practice talks and posters
- Title/abstract:
february 22 - february 27
- COSYNE
march 2
- Speaker: Alexis Guanella, ETH/INI Zurich
- Title/abstract: Grid cells
march 9
- Speaker: Jeffrey Ng (visitor)
- Title/abstract:
march 16
- Speaker: Jimmy
- Title/abstract:
march 23
- Speaker: Tony
- Learning in the Kinetic Automaton
march 30
- Speaker: spring break
- Title/abstract:
april 6
- Speaker: Martin Rehn
- Title/abstract:
april 13
- Speaker: Charles
- Title/abstract:
april 20
- Speaker: Alexander Schmolck
- Title/abstract:
april 27
- Speaker: Jascha
- Title/abstract:
may 4
- Speaker: Bruno
- Title/abstract:
may 11
- Speaker: Jimmy
- Title/abstract:
may 18
- Speaker: Thomas
- Title/abstract:
may 25
- Speaker: Evan
- Title/abstract: Auditory Scene Analysis / I'll give a quick tour of a few projects geared towards developing a large-scale model of auditory scene processing.
june 1
- Speaker: Tim
- Title/abstract: Saccades, spike timing and large scale cortical dynamics / project update.
june 8
- Speaker: cancelled
- Title/abstract:
june 15
- Speaker: Amir
- Title/abstract:
june 22
- Speaker: Pierre
- Title/abstract:
june 29
- Speaker: Mike
- Title/abstract:
july 6
- Speaker: cancelled
- Title/abstract:
july 13
- Speaker: no meeting
- Title/abstract:
july 20
- Speaker: Thomas
- Title/abstract: fMRI analysis
july 27
- Speaker: Jimmy
- Title/abstract: Learning overcomplete subspace structures on natural speech signal
august 3
- Speaker: Kilian
- Title/abstract:
august 10
- Speaker: no meeting
- Title/abstract:
august 17
- Speaker: Chetan
- Title/abstract:
august 24
- Speaker: Russ Webb
- Title/abstract:
august 31
- Speaker: Charles
- Title/abstract:
september 7
- Speaker: Bruno
- Title/abstract:
sept 14
- Speaker: Amir (granlibakken starts in the evening)
- Title/abstract:
sept 21
- Speaker: Chris
- Title/abstract:
sept 28
- Speaker: Chetan
- Title/abstract: Psychophysics of Object Recognition
oct 5
- Speaker: Fritz
- Title/abstract:
oct 12
- Speaker: Pierre
- Title/abstract:
oct 19
- Speaker: Mike D
- Title/abstract:
oct 26
- Speaker: sfn poster preview
- Title/abstract:
nov 2
- Speaker: sfn panic - last practice talks, posters should be printed...
- Title/abstract:
nov 9
- Speaker: SFN nobody is back yet.
- Title/abstract:
nov 16
- Speaker: SFN summary
- Title/abstract:
nov 23
- Speaker: thanksgiving
- Title/abstract:
nov 30
- Speaker: Jascha
- Title/abstract:
2006
April 21
- Speaker: Fritz
- Title/abstract: Endophysics
April 28
- Speaker: Tony
- Title/abstract: ICA, ISA, IVA and all that (slides)
May 5
- Speaker: Kilian/Tony/Fritz
- Title/abstract: FQXI proposal link
May 12
- Speaker: Bruno
- Title/abstract:
May 19
- Speaker: Jimmy Wang
- Title/abstract: Non-negative Matrix Factorization and Sparse Coding
May 26
- Speaker: Pierre
- Title/abstract: Qualifying exams practice talk
June 2
- Speaker: Tim
- Title/abstract: Polytrodes : large scale neuronal recording.
June 9
- Speaker: Kilian+Charles
- Title/abstract: Generalizing the Hilbert Transformation to 2D -- The Monogenic Signal
June 16
- Speaker: Thomas
- Title/abstract: Preliminary stuff on coherence analysis of sustained attention fMRI experiments.
June 23
- Speaker: Rich Baraniuk
- Title/abstract: Compressed Sensing
June 30
- Speaker: Kilian
- Title/abstract:
July 7
- Speaker: Tony
- Title/abstract:
July 14
- Speaker: Bruno
- Title/abstract:
July 21
- Speaker: Jimmy
- Title/abstract: Signal processing using Chromatic Derivatives
July 28
- Speaker: Pierre
- Title/abstract: Hierarchical Sparse Bayesian Learning
August 4
- Speaker: Fritz (Jimmy)
- Title/abstract: Kingsbury/complex wavelets
August 11
- Speaker: Jack
- Title/abstract: Bilinear models
August 18
- Speaker: Tim
- Title/abstract: How sparse is the cortex?
August 25
- Speaker: Amir
- Title/abstract: Receptive fields
September 1
- Speaker: Tony
- Title/abstract:
September 8
- Speaker: Jascha
- Title/abstract:
September 15
- Speaker: Bin Yu
- Title/abstract:
September 22
- Speaker: Charles
- Title/abstract:
September 29
- Speaker: Pierre
- Title/abstract:
October 6
- Speaker: Kilian
- Title/abstract:
October 13
- Speaker: Horace Barlow
- Title/abstract: Glass patterns
October 20
- Speaker: Evan
- Title/abstract: Coincidences and curious complexity
Is there a relationship between noticing a coincidence in a higher-level cognition sense, such as detecting "non-random" patterns in a series of coin flips, and experience-dependent changes in "attentional" preferences, such as developmental changes in looking times? Perhpas not but I'll spin a yarn in any case. I'll start with a review of Griffiths & Tenebaum (in press), "From mere coincidence to meaningful discoveries" (link here: http://cocosci.berkeley.edu/tom/papers/coincidences.pdf). Then I follow with some ill formed ideas of my own.
October 27
- Speaker: Bruno -> Tim
- Title/abstract: SFN poster on sparseness in neural recordings
November 3
- Speaker: Fritz
- Title/abstract:
November 10
- Speaker: Jimmy
- Title/abstract:
November 17
- Speaker: Thomas
- Title/abstract: Functional cortical networks during sustained visuospatial attention. (fMRI data stuff).
November 24
- Speaker: thanksgiving, no meeting
December 1
- Speaker: Tony
- Title/abstract:
December 8
- Speaker: Bruno
- Title/abstract:
December 15
- Speaker: Amir
- Title/abstract: Will have guest speaker, head of SETI@home and BOINC projects.
December 22, 29
- Speaker: holidays, no meetings