scholarly journals Power Geometry in Urban Memory: Reading Taksim Square Through the Concept of Representation of Space

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Ceren Göǧüş ◽  
Asiye Akgün Gültekin
Keyword(s):  
Representation Of Space ◽  
Power Geometry

The Power-geometry of Food Business Research

2015 ◽  
Vol 15 (3) ◽  
pp. 47-52
Author(s):  
Peter Jackson
Keyword(s):  
Conflicts Of Interest ◽  
Academic Research ◽  
User Engagement ◽  
Publicly Funded ◽  
Business Research ◽  
Academic Researchers ◽  
Variable Power ◽  
Access To Data ◽  
Funding Environment ◽  
Power Geometry

In a funding environment where commercial collaboration and “user engagement” are increasingly encouraged, this paper explores the ethical, political, and methodological challenges of various forms of partnership between academic researchers and food businesses. Drawing on two recently completed projects, the paper assesses the variable “power-geometry” of such partnerships, including the process of negotiating access, securing informed consent, and conducting and disseminating the research. The paper distinguishes between publicly funded academic research, where independence is more easily maintained, and market research and consultancy, where conflicts of interest are more likely to arise. Commercial collaboration is academically valuable in providing access to data and insights that are not publicly available, but can be treacherous if researchers are unaware of the uneven power-geometry of such partnerships.

scholarly journals Mouse entorhinal cortex encodes a diverse repertoire of self-motion signals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Caitlin S. Mallory ◽  
Kiah Hardcastle ◽  
Malcolm G. Campbell ◽  
Alexander Attinger ◽  
Isabel I. C. Low ◽  
...  
Keyword(s):  
Entorhinal Cortex ◽  
Medial Temporal Lobe ◽  
Visual Cues ◽  
Neural Circuits ◽  
Sensory Cues ◽  
Medial Entorhinal Cortex ◽  
Representation Of Space ◽  
Self Motion ◽  
Information Streams ◽  
Representations Of Space

AbstractNeural circuits generate representations of the external world from multiple information streams. The navigation system provides an exceptional lens through which we may gain insights about how such computations are implemented. Neural circuits in the medial temporal lobe construct a map-like representation of space that supports navigation. This computation integrates multiple sensory cues, and, in addition, is thought to require cues related to the individual’s movement through the environment. Here, we identify multiple self-motion signals, related to the position and velocity of the head and eyes, encoded by neurons in a key node of the navigation circuitry of mice, the medial entorhinal cortex (MEC). The representation of these signals is highly integrated with other cues in individual neurons. Such information could be used to compute the allocentric location of landmarks from visual cues and to generate internal representations of space.

Directional Variation in Distance Decay

1995 ◽  
Vol 27 (5) ◽  
pp. 715-729 ◽  
Author(s):  
A S Fotheringham ◽  
T C Pitts
Keyword(s):  
Mental Representation ◽  
Expansion Method ◽  
Spatial Variations ◽  
Distance Decay ◽  
Migration Data ◽  
Representation Of Space ◽  
Directional Variation

Given that geographers excel at measuring and explaining spatial variations in attributes, it is surprising that they are not more aware that relationships may vary over space. It is still normal practice, for example, to estimate a set of parameters in a model and to assume that the relationships represented by these values apply equally to all locations and in all directions. Recently, however, there have been several applications of Casetti's expansion method that have been focused on measuring anisotropic trends around locations. Here this technique is used to examine possible anisotropy in distance-decay relationships around origins. That is, the authors attempt to answer the question: does the rate of distance decay vary with direction? The conclusions reached in previous research on this topic are only partially supported here. Via US migration data, it is suggested that although there is evidence of directional variation in distance decay around some origins, and this evidence leads to some interesting insights into the mental representation of space by US migrants, it is impossible to identify any overall trend across origins in directional variability.

Neural Representation of Space Using Sinusoidal Arrays

1993 ◽  
Vol 5 (6) ◽  
pp. 869-884 ◽  
Author(s):  
David S. Touretzky ◽  
A. David Redish ◽  
Hank S. Wan
Keyword(s):  
Computer Simulations ◽  
Parietal Cortex ◽  
Spatial Information ◽  
Sine Wave ◽  
Spiking Neurons ◽  
Neural Representation ◽  
Temporal Dimension ◽  
Response Properties ◽  
Representation Of Space

O'Keefe (1991) has proposed that spatial information in rats might be represented as phasors: phase and amplitude of a sine wave encoding angle and distance to a landmark. We describe computer simulations showing that operations on phasors can be efficiently realized by arrays of spiking neurons that recode the temporal dimension of the sine wave spatially. Some cells in motor and parietal cortex exhibit response properties compatible with this proposal.

scholarly journals A spatial memory signal shows that the parietal cortex has access to a craniotopic representation of space

eLife ◽  
2018 ◽  
Vol 7 ◽  
Author(s):  
Mulugeta Semework ◽  
Sara C Steenrod ◽  
Michael E Goldberg
Keyword(s):  
Spatial Memory ◽  
Parietal Cortex ◽  
Receptive Fields ◽  
Spatial Location ◽  
Visual Response ◽  
Lateral Intraparietal Area ◽  
Memory Response ◽  
Representation Of Space ◽  
Present Trial

Humans effortlessly establish a gist-like memory of their environment whenever they enter a new place, a memory that can guide action even in the absence of vision. Neurons in the lateral intraparietal area (LIP) of the monkey exhibit a form of this environmental memory. These neurons respond when a monkey makes a saccade that brings the spatial location of a stimulus that appeared on a number of prior trials, but not on the present trial, into their receptive fields (RFs). The stimulus need never have appeared in the neuron’s RF. This memory response is usually weaker, with a longer latency than the neuron’s visual response. We suggest that these results demonstrate that LIP has access to a supraretinal memory of space, which is activated when the spatial location of the vanished stimulus can be described by a retinotopic vector from the center of gaze to the remembered spatial location.

scholarly journals Room Categorization Based on a Hierarchical Representation of Space

10.5772/55534 ◽  
2013 ◽  
Vol 10 (2) ◽  
pp. 94 ◽  
Author(s):  
Peter Uršič ◽  
Domen Tabernik ◽  
Marko Boben ◽  
Danijel Skočaj ◽  
Aleš Leonardis ◽  
...  
Keyword(s):  
Hierarchical Representation ◽  
Representation Of Space

Mapping the Terrain of Time—Space Compression: Power Networks in Everyday Life

1997 ◽  
Vol 15 (5) ◽  
pp. 611-626 ◽  
Author(s):  
Gary Bridge
Keyword(s):  
Political Philosophy ◽  
Interpersonal Relations ◽  
Power Networks ◽  
Late Modernity ◽  
Time Space ◽  
Experience Of Time ◽  
Space Compression ◽  
Actor Networks ◽  
Power Geometry ◽  
Comprehensive Mapping

In this paper I seek a more comprehensive mapping of the experience of time—space in late modernity. I develop Massey's critique of the work of Harvey and Jameson in their reading of time space compression as a socially uniform experience of disorientation. Building on Massey's notion of ‘power geometry’ I integrate discussions of time—space with an application of different understandings of power (from traditional political philosophy, Marxism, and poststructuralism) and their manifestations—in latent-power conditions, socioeconomic networks, actor networks, ‘local’ interpersonal relations, and the network spaces of subjectivity. Rather than being posited as irreconcilable conceptions, these versions of power and their articulations can be seen as initial coordinates in the mapping of the complexities of the experiences of time and space in late modernity.

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