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 Spring 2007 Colloquia

January 18 sera Maria Sera, Institute of Child Development
"Count-Mass Syntax and Categorization:  Current State and Future Questions"
  • Lucy, J.A. and Gaskins, S. (2003). Interaction of language type and referent type in the development of nonverbal classification preferences. In In D. Gentner & S. Goldin-Meadow (eds.), Language in Mind, 465-492. Cambridge, MA: MIT.

  • Mueller-Gathercole, V. (1997) The Linguistic Count/Mass Distinction as an Indicator of referent Categorization in monolingual and bilingual children. Child Development, Vol 68, No. 5, pp. 932-842.
January 25 georgieff Michael Georgieff, Pediatrics and Child Development
"Iron and the developing brain"
  • Georgieff, M. (2006) Iron in the brain: Its role in development and injury. Neoreviews, 7(July), e344 - e352    
    download pdf 761kb

  • Lozoff, B. et al (2006) Long-Lasting Neural and Behavioral Effects of Iron Deficiency in Infancy, Nutrition Reviews, 64, pp. 34-43
    download pdf 129kb

  • Georgieff, M. (2007) Long-Lasting Neural and Behavioral Effects of Iron Deficiency in Infancy, Am J Clinical Nutrition: 85 (suppl)
    download pdf 190kb
February 1 ugurbil Kamil Ugurbil, Radiology, Neuroscience, and Medicine
"Brain Imaging Using Nuclear Spins and High Magnetic Fields"
February 8 zahler Noel Zahler, School of Music
"Playing in time: Score following and understanding aspects of musical performance"
  • Baird, B., Blevins, D. and Zahler, N. (1993) Implementing an Interactive Computer Performer, Computer Music Journal, Summer, M.I.T. Press, Cambridge, Massachusetts

  • Izmirli, O., Seward, R. and Zahler, N. (2002) Compositional Imperatives for Implementing an Audio Alignment Program in MAx/MAP, Proceedings of the International Computer Music Conference, Goteborg, Sweden, International Computer Music Association, pp. 266-269.

  • Izmirli, O., Seward, R. and Zahler, N. (2003) Melodic Pattern Anchoring for Score Following Using Score Analysis. Proceedings of the International Computer Music Conference, Singapore, International Computer Music Association, pp. 411-414.
February 15 pellizer Giuseppe Pellizzer, Neuroscience
"On the use of information in planning a motor response"
  • Hick WE (1952) On the rate of gain of information. Q J Exp Psychol 4,
    11-26
  • Hyman R (1953) Stimulus information as a determinant of reaction time. J Exp Psychol 45, 188-196
  • Pellizzer G, Hedges JH (2003) Motor planning: Effect of directional
    uncertainty with discrete spatial cues. Exp Brain Res 150: 276-289
February 22 dickhaut John Dickhaut, Carlson School of Management
"Cognitive Development in the Context of Poverty "
March 1 konczak

Juergen Konczak, Kinesiology
"Body awareness in basal ganglia disease"

     This talk will focus on the role of cerebro-basal ganglia loop for body awareness or kinaesthesia. The basal ganglia are a large subcortical structure believed to be involved in motor control and the attribution of reward. Diseases affecting the basal ganglia, such as Parkinson's disease, will lead to an impairment in motor function, while patients rarely complain about any perceptual deficits. However, recent findings indicate that these patients clearly show deficits in kinaesthetic perception and I will present data from my lab in support of this claim. The findings shed new light on the discussion about the role of perceptual information for action and about the role of the cerebro-basal in processes of sensorimotor integration.

Link to Sensorimotor Lab: http://www.education.umn.edu/kin/research/motorlab/home.htm
March 8 papanikolopoulod Nikos Papanikolopoulos, Computer Science and Engineering
"Distributed Robotic Teams"

     This talk presents a distributed heterogeneous robotic team useful for reconnaissance and surveillance, search and rescue missions, decontamination and decommissioning efforts, and monitoring highly sensitive areas or populations, such as elderly or disabled patients in residential care. The small mobile scout robot, developed at the University of Minnesota, is the key element of the team.

      A large number of miniature robots robots (scouts) are deployed and controlled by humans and/or larger 'Megascout' robots. The specially designed and constructed scouts are extremely small (roughly the size of a soda can) yet are readily deployable (by tossing or launching), have multiple mobility modes, have a variety of sensing capabilities, can transmit and receive data and instructions in a wireless way, and have a limited capability for autonomous action.

      The Megascouts are significantly larger vehicles, based on a custom platform, augmented with powerful processors, radios, and additional sensors. Recent designs of modified scouts and improved mobility mechanisms will be presented. An analysis of the issues along with extensive experimental results will conclude the talk.
March 15 tulip SPRING BREAK
No Colloquium
March 22 karageorgiou Elissaios Karageorgiou
Department of Neuroscience and Brain Sciences Center
"Synchronous Neural Interactions: A Possible Functional Biomarker of Brain Disorders"
  • Langheim FJP, Leuthold AC, Georgopoulos AP, (2007) Synchronous dynamic brain networks revealed by magnetoencephalography, PNAS, 103, 2, 455-459 download pdf (1.7mb)
  • Leuthold AC, Langhiem FJP, Lewis SM, Georgopoulos AP, (2004) Time series analysis of magnetoencephalographic data during copying, Exp. Brain Res 164, 411-422 download pdf (765k)
March 29 georgopoulos
Apostolos Georgopoulos, Brain Sciences Center
"Encoding by neurons, decoding by neuronal populations."
(John Peponis lecture cancelled owing to illness)
April 5 barry Barry Gordon, Cognitive Neurology/Neuropsychology
Johns Hopkins University
"Applied Cognitive Neuroscience: Teaching speech to the nonverbal"
April 12 research SPRING RESEARCH DAY
No Colloquium
April 19 soechting John Soechting, Neuroscience
"Intercepting targets: Eye-hand coordination and strategies"
April 26 stemberger Joseph P. Stemberger
Department of Linguistics, University of British Columbia
"Word-specific vs. system-general storage of information for language production"
  • Stemberger, J.P. (2002). Overtensing and the effect of regularity. Cognitive Science, 26, 737-766. download 305kb pdf

  • Stemberger, J.P., & Middleton, C.M. (2003). Vowel dominance and morphological processing. Language & Cognitive Processes, 18, 369-404. download 202kb pdf

Abstract:
      While many aspects of a word's form are unpredictable and must be stored as part of an arbitrary association of meaning and form, some aspects are predictable in a statistical fashion. (a) When a speaker of English wishes to explicitly encode past time in a sentence, it is statistically likely that the verb will end in -/ed/ (as in/ washed/).
(b) It is statistically likely that any given consonant in a word will be an anterior coronal (t, d, s, z, É, ©£, n, l), and that the vowel will be a front vowel and/or a mid vowel.

      In cognition in general, there are three options for the storage and processing of fully or statistically predictable information: (1) Store the information as part of the "lexical entry" (the arbitrary association of meaning and form) exactly like unpredictable information, and add cognitive machinery to account for generalization to other words. (2) Extract the information and store it as a general part of the system, leaving it out of individual lexical entries. (3) Some combination of these two, possibly with a weaker level of storage of the information in the lexical entry.

      I will discuss production of past tense in English to explore this question relative to -/ed/ (whether words like/ washed/ are stored) and to the phonological features of mid front vowels. Data come from experiments with adults and from ChiLDES-based studies of child language. Using frequency and "neighbourhood" effects, I argue that most of the storage and processing of statistically predictable information is system-general, but that there is a small word-specific component as well.
May 3 romanski Liz Romanski, Neurobiology and Anatomy
University of Rochester
"Representation and Integration of Audio-Visual Communication Information in the Prefrontal Cortex"
  • Sugihara, T, Diltz, M., Averbeck, B. and Romanski, L. M. (2006)
    Integration of auditory and visual communication information in the
    primate ventrolateral prefrontal cortex. J. Neuroscience 26: 11138-47. download 422kb pdf

  • Romanski, L.M., Averbeck B.B., Diltz M. (2005) Neural Representation of
    Vocalizations in the Primate Ventrolateral Prefrontal Cortex. J
    Neurophysiol. 93:734-47. download 1.16mb pdf

  • Romanski, L. M. (2004) Domain Specificity in the Primate Prefrontal
    Cortex . Cognitive, Affective, & Behavioral Neuroscience 4: 421-429. download 442kb pdf