1,721,055 research outputs found
A new tool to evaluate superior arm movement in multiple sclerosis subjects during rehabilitation
No full textIs virtual reality a useful tool in multiple sclerosis neurorehabilitation? A pilot study
No full textMentally simulated motor actions in neurorehabilitation. A pilot study in multiple sclerosis
No full textMultiple sclerosis and rehabilitation: an overview on cost due to rehabilitation and use of different rehabilitation setting in Italy
No full textInteraction between vision and neck proprioception in the control of stance
No full textBalance control depends on the interaction of multiple
inputs originating from different sensory systems. Here,
we investigated the effect on quiet human stance of changing
the visual condition prior to a proprioceptive perturbation
produced by vibration of dorsal neck muscles. In complete
absence of visual references, the amplitude of the postural
responses to neck vibration (forward shift of the centre of
foot pressure) was the largest and became progressively
larger as a function of the repetition of administered stimuli.
The posture-destabilizing effect of vibration eyes-closed (EC)
and the build-up effect were reduced if vibration was preceded
by a period during which vision was allowed (EO).
Similarly, the small destabilizing effect of vibration EO was
increased if vibration was preceded by an EC period. The
fore-period must last more than 3 s in order to affect the
response to neck muscle vibration. The responsiveness to a
proprioceptive disturbing input does not immediately change
on adding or subtracting vision, but a finite time period must
elapse before the postural “set” defined by vision is fully
established. The findings underline the importance of time
when vision is used in re-weighting the excitability of the
postural control mechanisms
Interaction between vision and neck proprioception in the control of stance
No full textBalance control depends on the interaction of multiple
inputs originating from different sensory systems. Here,
we investigated the effect on quiet human stance of changing
the visual condition prior to a proprioceptive perturbation
produced by vibration of dorsal neck muscles. In complete
absence of visual references, the amplitude of the postural
responses to neck vibration (forward shift of the centre of
foot pressure) was the largest and became progressively
larger as a function of the repetition of administered stimuli.
The posture-destabilizing effect of vibration eyes-closed (EC)
and the build-up effect were reduced if vibration was preceded
by a period during which vision was allowed (EO).
Similarly, the small destabilizing effect of vibration EO was
increased if vibration was preceded by an EC period. The
fore-period must last more than 3 s in order to affect the
response to neck muscle vibration. The responsiveness to a
proprioceptive disturbing input does not immediately change
on adding or subtracting vision, but a finite time period must
elapse before the postural “set” defined by vision is fully
established. The findings underline the importance of time
when vision is used in re-weighting the excitability of the
postural control mechanisms
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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