Coordinate transformations in the representation of spatial information

Andersen, Richard A.; Snyder, Lawrence H.; Li, Chiang-Shan; Stricanne, Brigitte

doi:10.1016/0959-4388(93)90206-e

Cited by 294 publications

(162 citation statements)

References 27 publications

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“…4). This area is known to mediate far-space coding (Anderson et al, 1993;Rizzolatti et al, 1994;Petit et al, 1996;Boussaoud, 1995) and has recently been implicated in merging both near and far space (Iacoboni et al, 1997). In fact, both visual and auditory stimuli presented in our study could be conceived of as inducing the perceptual impression of an approaching and departing motion.…”

Section: Higher Complexity Additionally Modulates Premotor Regions Ofmentioning

confidence: 82%

Predicting Perceptual Events Activates Corresponding Motor Schemes in Lateral Premotor Cortex: An fMRI Study

Schubotz

Cramon²

2002

NeuroImage

183

118

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The ability to recognize sequential patterns of external events enables us to predict their future course and thus to plan and execute actions based on current perceptions and previous experiences. Here we show with functional magnetic resonance imaging that even in the absence of movement the prediction of sequential patterns activates brain areas involved in the representation of specific motor schemas. Particularly, the prediction of size engages premotor areas involved in hand movements (superior part of the ventrolateral premotor cortex), whereas the prediction of pitch engages premotor areas involved in articulation (inferiormost ventrolateral premotor cortex). The findings indicate that events are mapped onto somatotopically corresponding motor schemes whenever we predict sequential perceptions.

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Section: Higher Complexity Additionally Modulates Premotor Regions Ofmentioning

confidence: 82%

Predicting Perceptual Events Activates Corresponding Motor Schemes in Lateral Premotor Cortex: An fMRI Study

Schubotz

Cramon²

2002

NeuroImage

183

118

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“…Numerous examples exist of systems in which the transformation from sensory inputs to motor outputs has been studied (Lee et al, 1988;Schwartz et al, 1988;Fortier et al, 1989;Masino and Knudsen, 1990;Andersen et al, 1993;Britten et al, 1996). The clearest examples are found in invertebrate systems in which the different processing stages between input and output are more directly accessible (Lewis and Kristan, 1998;Levi and Camhi, 2000;Beenhakker and Nusbaum, 2004).…”

Section: Introductionmentioning

confidence: 99%

The Role of Sensory Network Dynamics in Generating a Motor Program

Levi¹,

Varona²,

Arshavsky³

et al. 2005

J. Neurosci.

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Sensory input plays a major role in controlling motor responses during most behavioral tasks. The vestibular organs in the marine mollusk Clione, the statocysts, react to the external environment and continuously adjust the tail and wing motor neurons to keep the animal oriented vertically. However, we suggested previously that during hunting behavior, the intrinsic dynamics of the statocyst network produce a spatiotemporal pattern that may control the motor system independently of environmental cues. Once the response is triggered externally, the collective activation of the statocyst neurons produces a complex sequential signal. In the behavioral context of hunting, such network dynamics may be the main determinant of an intricate spatial behavior. Here, we show that (1) during fictive hunting, the population activity of the statocyst receptors is correlated positively with wing and tail motor output suggesting causality, (2) that fictive hunting can be evoked by electrical stimulation of the statocyst network, and (3) that removal of even a few individual statocyst receptors critically changes the fictive hunting motor pattern. These results indicate that the intrinsic dynamics of a sensory network, even without its normal cues, can organize a motor program vital for the survival of the animal.

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“…Knowledge of the visual features and constituent elements of the environment must be combined with information regarding the position of those features with respect to oneself as well as an integrated representation of one's movement through the space (39). What is the neural basis of the representation of these components of environmental knowledge?…”

Section: Neocortical Representations Of Environmental Spacementioning

confidence: 99%

Neural components of topographical representation

Aguirre

Zarahn

D’Esposito

1998

Proc. Natl. Acad. Sci. U.S.A.

146

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Studies of patients with focal brain damage suggest that topographical representation is subserved by dissociable neural subcomponents. This article offers a condensed review of the literature of ''topographical disorientation'' and describes several functional MRI studies designed to test hypotheses generated by that review. Three hypotheses are considered: (i) The parahippocampal cortex is critically involved in the acquisition of exocentric spatial information in humans; (ii) separable, posterior, dorsal, and ventral cortical regions subserve the perception and long term representation of position and identity, respectively, of landmarks; and (iii) there is a distinct area of the ventral occipitotemporal cortex that responds maximally to building stimuli and may play a role in the perception of salient landmarks. We conclude with a discussion of the inferential limitations of neuroimaging and lesion studies. It is proposed that combining these two approaches allows for inferences regarding the computational involvement of a neuroanatomical substrate in a given cognitive process although neither method can strictly support this conclusion alone.The topographical domain may be defined as that space that is beyond our immediate perceptual horizon. Topographical spaces include the interior of a building or the town in which the building is located. We routinely generate internal representations of these spaces, as well as their contents, which suffice to guide us from place to place. There are, perhaps, as many different kinds of representations as there are possible solutions to the problem of way-finding, ranging from inflexible, route-based lists of right and left turns to map-like representations that encode the metric distance relationships between landmarks (1). These representations can be cast within different spatial frames, including egocentric (bodycentered) and exocentric (world-centered) coordinates (2). There is evidence that these different types of representations can be brought to bear in combination and in isolation, depending on the features of the environment (3) and the means (4) and goals (5) of exploration. The aim of this article is to review some recent studies regarding the neural basis of these types of topographical representations.There are three primary ideas that will be presented here. All three fall under the more general proposal that distinct functional, neuroanatomical components, which normally operate in concert to provide the seamless percept of orientation, differentially contribute to the representational processes mentioned above. Each of these hypotheses are related to the performance deficits from which topographically disoriented brain-damaged patients suffer, and these hypotheses have been tested explicitly in intact subjects by using functional magnetic resonance imaging (fMRI).The first hypothesis is that the medial-temporal lobes are regionally subspecialized for the acquisition of topographic information. The hippocampus holds a privileged position (1) in ...

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Coordinate transformations in the representation of spatial information

Cited by 294 publications

References 27 publications

Predicting Perceptual Events Activates Corresponding Motor Schemes in Lateral Premotor Cortex: An fMRI Study

Predicting Perceptual Events Activates Corresponding Motor Schemes in Lateral Premotor Cortex: An fMRI Study

The Role of Sensory Network Dynamics in Generating a Motor Program

Neural components of topographical representation

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