scholarly journals Encoding Categorical and Coordinate Spatial Relations Without Input-Output Correlations: New Simulation Models

1999 ◽  
Vol 23 (1) ◽  
pp. 33-51 ◽  
Author(s):  
David P. Baker ◽  
Christopher F. Chabris ◽  
Stephen M. Kosslyn
Keyword(s):  
Simulation Models ◽  
Spatial Relations ◽  
Input Output ◽  
Coordinate Spatial Relations

scholarly journals The Road More Travelled: The Differential Effects of Spatial Experience in Young and Elderly Participants

2021 ◽  
Vol 18 (2) ◽  
pp. 709
Author(s):  
Antonella Lopez ◽  
Alessandro Germani ◽  
Luigi Tinella ◽  
Alessandro Oronzo Caffò ◽  
Albert Postma ◽  
...  
Keyword(s):  
Mental Representations ◽  
Spatial Relations ◽  
The Elderly ◽  
The Road ◽  
Socio Demographic Factors ◽  
Effects Of Aging ◽  
Coordinate Spatial Relations ◽  
Categorical Spatial Relations ◽  
The Relationship

Our spatial mental representations allow us to give refined descriptions of the environment in terms of the relative locations and distances between objects and landmarks. In this study, we investigated the effects of familiarity with the everyday environment, in terms of frequency of exploration and mode of transportation, on categorical and coordinate spatial relations, on young and elderly participants, controlling for socio-demographic factors. Participants were tested with a general anamnesis, a neuropsychological assessment, measures of explorations and the Landmark Positioning on a Map task. The results showed: (a) a modest difference in performance with categorical spatial relations; (b) a larger difference in coordinate spatial relations; (c) a significant moderating effect of age on the relationship between familiarity and spatial relations, with a stronger relation among the elderly than the young. Ceteris paribus, the role of direct experience with exploring their hometown on spatial mental representations appeared to be more important in the elderly than in the young. This advantage appears to make the elderly wiser and likely protects them from the detrimental effects of aging on spatial mental representations.

scholarly journals Focusing Narrowly or Broadly Attention When Judging Categorical and Coordinate Spatial Relations: A MEG Study

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e83434 ◽  
Author(s):  
Raffaella Franciotti ◽  
Stefania D’Ascenzo ◽  
Alberto Di Domenico ◽  
Marco Onofrj ◽  
Luca Tommasi ◽  
...  
Keyword(s):  
Spatial Relations ◽  
Coordinate Spatial Relations

MODELING SUSTAINABLE ECONOMY: INTEGRATING ECONOMIC, ENVIRONMENTAL, AND POPULATION MODELS

2013 ◽  
Vol 10 (01) ◽  
pp. 1350007
Author(s):  
FREDERICK BETZ
Keyword(s):  
Environmental Impact ◽  
Economic Model ◽  
Simulation Models ◽  
Environmental Policies ◽  
Input Output ◽  
Physical Processes ◽  
Environmental Model ◽  
Data Architecture ◽  
Sustainable Economy ◽  
Biological Impacts

For economic and environmental policies aimed at developing sustainable economies, it is important to have a general modeling approach which can quantitatively connect economic processes with biological and physical processes of the environment. If economic processes cannot be measured as to their real physical/biological impacts, one does not know whether or not such economic processes are sustainable in nature. To create an integrated economic/environmental model, we have mathematically generalized the Leontief's input–output economic model — from vector notation to tensor notation. The use of tensor mathematics for input–output models of both an economy and its environment provides a data architecture to create simulation models of the environmental impact of an economy.

Conjoining an Input-Output Model and a Policy Analysis Model: A Case Study of the Regional Economic Effects of Expanding a Port Facility

1981 ◽  
Vol 13 (8) ◽  
pp. 1029-1038 ◽  
Author(s):  
B H Stevens ◽  
G I Treyz ◽  
J K Kindahl
Keyword(s):  
Policy Analysis ◽  
Simulation Models ◽  
Economic Effects ◽  
Input Output ◽  
Analysis Model ◽  
General Applicability ◽  
Distinctive Features ◽  
The Cost ◽  
Port Facility

A 484-sector Massachusetts static input-output (MIO) model is conjoined with the Massachusetts Economic Policy Analysis (MEPA) model which includes supply relationships, industrial location responses to changing costs, and a production function allowing substitution among inputs. This makes it possible to draw upon the distinctive features of both models. The technique is demonstrated by a study that analyzes the effect on the Massachusetts economy of the expansion of a container port facility at Boston. The approach presented here has general applicability to policy analysis and planning studies that require both the detailed regional interindustry interactions captured by a disaggregated input-output model and the cost, price, supply, location, and demand interdependencies which are endogenous in the best regional forecasting and policy simulation models.

Categorical and coordinate spatial relations in working memory: An fMRI study

2009 ◽  
Vol 1297 ◽  
pp. 70-79 ◽  
Author(s):  
Ineke J.M. van der Ham ◽  
Mathijs Raemaekers ◽  
Richard J.A. van Wezel ◽  
Anna Oleksiak ◽  
Albert Postma
Keyword(s):  
Working Memory ◽  
Spatial Relations ◽  
Fmri Study ◽  
Coordinate Spatial Relations

Hemispheric Processing of Categorical and Coordinate Spatial Relations in the Absence of Low Spatial Frequencies

2002 ◽  
Vol 14 (2) ◽  
pp. 291-297 ◽  
Author(s):  
Matia Okubo ◽  
Chikashi Michimata
Keyword(s):  
Visual Field ◽  
Spatial Frequency ◽  
Right Hemisphere ◽  
Spatial Relation ◽  
Spatial Relations ◽  
Right Visual Field ◽  
Spatial Frequencies ◽  
Categorical Task ◽  
The Right ◽  
Coordinate Spatial Relations

Right-handed participants performed the categorical and coordinate spatial relation judgments on stimuli presented to either the left visual field—right hemisphere (LVF-RH) or the right visual field—left hemisphere (RVF-LH). The stimulus patterns were formulated either by bright dots or by contrast-balanced dots. When the stimuli were bright, an RVF-LH advantage was observed for the categorical task, whereas an LVF-RH advantage was observed for the coordinate task. When the stimuli were contrast balanced, the RVF-LH advantage was observed for the categorical task, but the LVF-RH advantage was eliminated for the coordinate task. Because the contrast-balanced dots are largely devoid of low spatial frequency content, these results suggest that processing of low spatial frequency is responsible for the right hemisphere advantage for the coordinate spatial processing.

PET Studies of Categorical and Coordinate Spatial Relations Encoding

NeuroImage ◽  
1998 ◽  
Vol 7 (4) ◽  
pp. S812
Author(s):  
S.M. Kosslyna ◽  
W.L. Thompsonb ◽  
D.R. Gitelmanc ◽  
N.M. Alpertd
Keyword(s):  
Spatial Relations ◽  
Coordinate Spatial Relations
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