Browsing College of Arts and Sciences by Author "Guenther, Frank H."

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Browsing College of Arts and Sciences by Author "Guenther, Frank H."

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  • Johnson, Dave; Guenther, Frank H. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1995-03)
    Recent evidence suggests that speakers utilize an acoustic-like reference frame for the planning of speech movements. DIVA, a computational model of speech acquisition and motor equivalent speech production, has previously ...
  • Guenther, Frank H.; Epsy-Wilson, Carol Y.; Boyce, Suzanne E.; Matthies, Melanie L.; Zandipour, Majid; Perkell, Joseph S. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1998-01)
    Acoustic and articulatory recordings reveal that speakers utilize systematic articulatory tradeoffs to maintain acoustic stability when producing the phoneme /r/. Distinct articulator configurations used to produce /r/ in ...
  • Hampson, Michelle; Guenther, Frank H.; Cohen, Michael A.; Nieto-Castanon, Alfonso (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 2003-02)
    To investigate the process underlying audiovisual speech perception, the McGurk illusion was examined across a range of phonetic contexts. Two major changes were found. First, the frequency of illusory /g/ fusion percepts ...
  • Guenther, Frank H.; Espy-Wilson, Carol Y.; Boyce, Suzanne E.; Matthies, Melanie L.; Zandipour, Majid; Perkell, Joseph S. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1997-07)
    The purpose of this report is to test the hypothesis that speakers utilize an acoustic, rather than articulatory, planning space for speech production. It has been well-documented that many speakers of American English use ...
  • Guenther, Frank H.; Husain, Fatima T.; Cohen, Michael A.; Shinn-Cunningham, Barbara G. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1999-03)
    Psychophysical phenomena such as categorical perception and the perceptual magnet effect indicate that our auditory perceptual spaces are warped for some stimuli. This paper investigates the effects of two different kinds ...
  • Guenther, Frank H. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1994-05)
    This article describes a neural network model that addresses the acquisition of speaking skills by infants and subsequent motor equivalent production of speech sounds. The model learns two mappings during a babbling phase. ...
  • Guenther, Frank H.; Bullock, Daniel; Greve, Douglas; Grossberg, Daniel (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1993-12)
    A neural model is described of how the brain may autonomously learn a body-centered representation of 3-D target position by combining information about retinal target position, eye position, and head position in real time. ...
  • Guenther, Frank H.; Gjaja, Marin N. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1995-10)
    The perceptual magnet effect is one of the earliest known language-specific phenomena arising in infant speech development. The effect is characterized by a warping of perceptual space near phonemic category centers. ...
  • Guenther, Frank H. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1993-01)
    This paper describes a model of speech production called DIVA that highlights issues of self-organization and motor equivalent production of phonological units. The model uses a circular reaction strategy to learn two ...
  • Bullock, Daniel; Grossberg, Stephen; Guenther, Frank H. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1992-12)
    This paper describes a self-organizing neural model for eye-hand coordination. Called the DIRECT model, it embodies a solution of the classical motor equivalence problem. Motor equivalence computations allow humans and ...
  • Cameron, Seth; Grossberg, Stephen; Guenther, Frank H. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1995-12)
    This paper describes a self-organizing neural network architecture that transforms optic now information into representations of heading, scene depth, and moving object locations. These representations are used to reactively ...
  • Bullock, Daniel; Greve, Douglas; Grossberg, Stephen; Guenther, Frank H. (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1993-01)
    This paper describes a self-organizing neural network that rapidly learns a body-centered representation of 3-D target positions. This representation remains invariant under head and eye movements, and is a key component ...
  • Guenther, Frank H.; Brumberg, Jonathan S.; Wright, E. Joseph; Nieto-Castanon, Alfonso; Tourville, Jason A.; Panko, Mikhail; Law, Robert; Siebert, Steven A.; Bartels, Jess L.; Andreasen, Dinal S.; Ehirim, Princewill; Mao, Hui; Kennedy, Philip R. (Public Library of Science, 2009-12-9)
    BACKGROUND. Brain-machine interfaces (BMIs) involving electrodes implanted into the human cerebral cortex have recently been developed in an attempt to restore function to profoundly paralyzed individuals. Current BMIs for ...

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