[vslist] Post doc in Vision/Neuroscience at LENA (Paris)

Jean Lorenceau jean.lorenceau@chups.jussieu.fr
Wed Mar 17 13:55:00 2004


Dear colleague,

Would you be kind enough to advertise this post-doc position in Paris in
your list of post-doctoral positions?
Thank you very much!

Jean Lorenceau
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jean.lorenceau@chups.jussieu.fr
Laboratoire de Neurosciences Cognitives et Imagerie Cérébrale
LENA - CNRS UPR 640
Hôpital de la Salpêtrière
47, Bd de l'Hôpital
75651 PARIS Cedex 13
tel:+33 (0)1 42 16 11 83
fax:+33 (0)1 45 86 25 37
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Neuronal dynamics of perceptual binding : fMRI, EEG/MEG, psychophysics and
oculo- motor strategies

Project Description :
Complex visual stimuli elicits co-activity in large ensemble of neurons
distributed amongst numerous visual cortical areas selectively processing
their different characteristics –orientation, color, motion, etc.-. This
project aims at identifying and modeling the dynamics of the neuronal
networks underlying form/motion binding, needed to recover image structure
and to decompose a complex visual scene into independent units, available
for perception and action. Our working hypothesis is that binding moving
object’s  features involves complex interactions between neurons in primary
visual cortex, (V1/V2), between neurons in the  MT/MST complex and in the
LOC, as well as interactions between these areas. We shall more particularly
explore: i. the dynamics of perceptions requiring spatio-temporal binding
together with the progressive concomitant recruitment of related visual
areas, ii. the dynamics of perceptual fluctuations between coherent and
incoherent states elicited by the same distal stimulus and the associated
neuronal changes, iii. the temporal evolvement of perceptual learning and
the implied neuronal modifications. In this study, we shall use a
multidisciplinary approach combining fMRI, EEG/MEG, psychophysics and
oculomotor behavior in human adults. Electrophysiological recordings
performed in parallel with partner teams in behaving monkeys together with
studies of patients with visual deficits with EEG should permit to develop a
complete functional model of perceptual binding.

Job Profile:
Applicants should hold a PhD in neuroscience or related discipline. The work
requires good background in functional imaging (fMRI and/or EEG/MEG) as well
as related statistical techniques. Knowledge in vision and psychophysics is
welcome.
Salary : 2150 Euros per month, including social security.
12 months, renewable once.

Applicants should contact Jean Lorenceau at jean.lorenceau@chups.jussieu.fr