MATTHIAS
NIEMEIER
Postdoctoral Fellow,
CIHR Group for Action
and Perception &
York Centre for Vision
Research
Dept. for Physiology
University of Toronto
Medical Science Building
1 King's College Circle, Toronto, Ontario, M5S 1A8
CANADA
BIOGRAPHY:
Education / Work Experience
2000-present Postdoctoral Fellow, University of Toronto
(with Douglas Tweed and Doug Crawford)
1996-2000 Ph.D Neuropsychology, University
of Tuebingen (with Hans-Otto Karnath)
1996-1999 Postgraduate College
Neurobiology, University of Tuebingen
1994
Training in clinical neuropsychology, Neurological Rehabilitation Centre,
University of Duessledorf (with Uwe Behrends & Tony Canavan)
1991-1996 M.A. Psychology, University
of Hamburg (with Kurt Pawlik)
Awards
1999
Travel Grant of the European Science Foundation
1996-1999 Research Grant of the
Postgraduate College Neurobiology
RESEARCH PROJECT:
My research project is focused on transsaccadic integration. I am interested in questions like: what kind of information is stored across saccadic eye movements? How is it represented in the brain? How can it be employed for perceptual tasks? The methods I use are computational simulations, psychophysical methods and eye movement recordings (at York University). Later experiments using fMRI (at University of Western Ontario, London) are planned.
PUBLICATIONS:
Journal Articles
Niemeier, M. & Karnath, H.-O. (2000). Exploratory saccades show no direction-specific deficit in neglect. Neurology, 54, 515-518.
Karnath, H.-O., Niemeier, M. & Dichgans, J. (1998). Space exploration in neglect. Brain, 121, 2357-2367.
Karnath, H.-O., Fetter, M. & Niemeier, M. (1998). Disentangeling gravitational, environmental and egocentric reference frames in spatial neglect. Journal of Cognitive Neuroscience, 10, 680-690.
Kastrup, A., Dichgans, J., Niemeier, M. & Schabet, M. (1998).
Changes of cerebrovascular CO2 reactivity during normal aging. Stroke, 29,
1311-1314.
Neuropsychological Tests
Behrends, U., Lück, H., Niemeier, M. & Canavan, A. G. M. (1994).
Der Rivermead Behavioural Memory Test. Ergänzungsheft 2. Thames Valley: Bury
St. Edmunds. (supplement of the German version of the RBMT)
Abstracts
Niemeier, M. & Karnath, H.-O. (2000). Differences between reflexive and voluntary eye movements in patients with neglect. Society for Neuroscience Abstracts, 595.9.
Niemeier, M. & Karnath, H.-O. (2000). Reflexive and voluntary saccades in patients with neglect. Cognitive and neural bases of spatial neglect, Como.
Niemeier, M. & Karnath, H.-O. (2000). Object-centered neglect is due to attentional focussing. Cognitive Neuroscience Society Abstracts.
Niemeier, M. & Karnath, H.-O. (1999). Differences between reflexive and voluntary eye movements in neglect. European Conference on Eye Movements 10.
Niemeier, M. & Karnath, H.-O. (1999). Saccadic eye movements of neglect patients do not show direction-specific deficits in visual search. Tübinger Wahrnehmungskonferenz.
Niemeier, M. & Karnath, H.-O. (1998). No direction-specific deficits of eye movements in visual search of neglect patients. European Journal of Neuroscience, 10 (Suppl. 10), 256.
Niemeier, M. & Karnath, H.-O. (1998). The attentional gradient - a question of spatial restrictions? Neglect in full range exploration. Tübinger Wahrnehmungskonferenz.
Niemeier, M. & Karnath, H.-O. (1997). Visual search in the environment by patients with neglect. Experimental Brain Research, 117 (Suppl.), S58.
Karnath, H.-O., Fetter, M. & Niemeier, M. (1997). Disentangeling
gravitational and egocentric coordinates in spatial neglect. Experimental Brain
Research, 117 (Suppl.), S57.
Submitted papers
Niemeier, M. & Karnath, H.-O. From object perception to space perception: a model for coordinate transformation.
Karnath, H.-O. & Niemeier, M. Is there a common basis of 'object-centered' and 'egocentric' neglect ?
