Search results for "Spatial cognition"
showing 10 items of 26 documents
Prism adaptation power on spatial cognition: Adaptation to different optical deviations in healthy individuals
2015
The main objective of the present study was to determine the minimal optical deviation responsible for cognitive after-effects in healthy individuals and to explore whether there was a relationship between the degree of optical deviation and cognitive after-effects. Therefore different leftward optical deviations (8°, 10° and 15°) were used in three different groups of healthy participants. Sensorimotor after-effects (evaluating the visuo-manual realignment) were assessed using an open-loop pointing task and cognitive after-effects (evaluating changes in spatial representation) were assessed using manual and perceptual (landmark) line bisection tasks. Results revealed that exposure to 8°, 1…
Testing cognition and rehabilitation in unilateral neglect with wedge prism adaptation: multiple interplays between sensorimotor adaptation and spati…
2014
Spatial neglect is a neurological condition characterised by deficits for perceiving, attending, representing, and/or performing actions within their left-sided space, responsible for numerous debilitating effects in everyday life, for poor functional recovery, and for decreased ability to benefit from treatment. Exposure to a right lateral displacement of the visual field (induced by a simple target-pointing task with base-left wedge prisms) is known to directionally bias visuomotor coordination and can be compensated by both sensorimotor adaptation and cognitive processes. Sensorimotor adaptation gives rise to after-effects whose duration is amplified in neglect patients and has been repe…
Raccontare e rappresentare le lingue e lo spazio. L'esperienza dell'Atlante Linguistico della Sicilia
2017
La Dialettologia Percettiva, disciplina che si occupa dello studio delle opinioni dei parlanti sulle varietà di lingua, nell'ultimo decennio ha rinnovato i propri fondamenti. Il volume da un lato intende ripercorrere criticamente tali profonde innovazioni, dall'altro propone una serie di modelli originali per l'analisi e l'interpretazione dei dati. Il corpus della ricerca è costituito dalle risposte di circa 900 informatori distribuiti in 60 punti d'inchiesta a tre domande del questionario dell'Atlante Linguistico della Sicilia (ALS) pensate per rilevare la percezione e rappresentazione della differenza linguistica. Una mole imponente di dati che sono stati trattati con un approccio quanti-…
Spatial Cognition and Frames of Reference in Indo-European
2022
The development of Frames of Reference (FoRs) as coordinate systems in space language has gained increasing attention in current linguistic, neurolinguistic, and psycholinguistic research (Diessel 2013: 687; Kemmerer 2010). Previous studies on typology of spatial expressions have traditionally been based on the universal status of the egocentric or relative FoR found in the Indo- European languages, in which the relation between Figure and Ground is specified by the deictic observer’s viewpoint (Mühlhäusler 2001). However, there is growing crosslinguistic evidence that many non-Indo-European languages do not make use of such deictic or ternary FoR, but interpret spatial relations by referri…
Jauniešu ģeogrāfiskās telpas kognitīvā struktūra un aktivitātes pilsētā
2013
Elektroniskā versija nesatur pielikumus
Rapid learning of a spatial memory task in a lacertid lizard (Podarcis liolepis).
2018
Abstract Mammals and birds are capable of navigating to a goal using learned map-like representations of space (i.e. place learning), but research assessing this navigational strategy in reptiles has produced inconclusive results, in part due to the use of procedures that do not take account of the peculiarities of reptilian behavior and physiology. Here I present a procedure suitable for testing spatial cognition that exploits a naturally evolved, ethologically relevant ability common to many lizards (i.e. refuge seeking behavior). The procedure requires lizards to learn the location of an open refuge inside a rectangular arena containing artificial refuges in every corner, using distal ex…
P 96. Prismatic lenses as a novel tool to directionally manipulate motor cortex excitability: Evidence from paired-pulse TMS
2013
Introduction Prismatic adaptation (PA) is a visuo-motor procedure requiring participants to adapt to prismatic lenses shifting the visual scene horizontally. Such an adaptation produces a phenomenon called “after-effect”, opposite to the side of lenses deviation. The after-effect has been frequently associated with a shift of spatial attention in the same direction and with a restoration of hemispatial neglect symptoms. PA has captured the interest of neuroscientists in the last decades, since it affects high-order spatial cognition even thought consisting of low-level visuo-motor processes. Objectives Despite a huge literature on this procedure, the basic neural processes related to PA and…
Is addressable memory required for spatial cognition?: Poster
2021
This paper investigates the computational basis of the temporal and spatial cognition that underlies certain animal behaviours. For example, ants, when they find food, are able to encode the compass direction which takes them back to their nest. In their (2009) book, Memory and the Computational Brain (MCB), Gallistel and King articulate a classicist view: animals must do this using a symbolic, addressable, read-write memory. Here we challenge this view, arguing that complex behaviour can be explained by computational mechanisms which do not need to look like addressable random-access memory.