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Acuity for fine-grain motion and for two-dot spacing as a function of retinal eccentricity: Differences in specialization of the central and peripheral retina: Vision Research, Vol. 29, No. 8. (1989), pp. 1017-1031.The brief presentation in the peripheral field of two closely spaced luminous point stimuli, in rapid sequence, induces the illusion of a single dot moving over an extended path. This fine-grain movement illusion (FGMI) is particularly compelling under conditions of dark adaptation. The strength of the motion percept, assessed by a rating-scale procedure, was found to correlate well, over different flash-flash onset delays, with an objective measure of the illusion requiring discrimination of the direction of the flash-flash sequence. A direction-disc rimination measure was used to determine the minimum dot separation that would reliably elicit an FGMI at retinal eccentricities of 5-25 deg. For comparison, measures of static spatial acuity was made based on the minimum angle of resolution of two simultaneous dot flashes, and on the threshold for discriminating the separation of two simultaneous dot flashes with variable initial spacing. The spatial threshold for FGMI was lower than that for each of the static measures at all peripheral eccentricities , and it increased more slowly with eccentricity than the other spatial thresholds, suggesting the involvement of separate visual pathways for generating percepts of motion and percepts of shape or location. The finding that in the periphery the grain for motion detection was finer than that for spatial discrimination constrains a class of motion-percept ion models that form an initial spatial description of the stimulus and then compute a temporal derivative.

Source: Vision Research, Vol. 29, No. 8. (1989), pp. 1017-1031.
Clipping lists and change borders: improving multitasking efficiency with peripheral information design: (2006), pp. 989-998.

Source: (2006), pp. 989-998.
A fisheye follow-up: further reflections on focus + context: (2006), pp. 999-1008.

Source: (2006), pp. 999-1008.
Multinationals on the Periphery: (26 December 2007)This book focuses on how MNE activity both to and from peripheral economies differs from MNEs associated with "core" economies.

Source: (26 December 2007)
Opportunities for Advancement: Intra-Communit y Power Contests in the Midst of Political Decentralizati on in Terminal Classic Southeastern Mesoamerica: Latin American Antiquity, Vol. 15, No. 3. (2004), pp. 251-272.[Engli sh] Archaeologists traditionally investigate the emergence of complex sociopolitical formations at micro- and macroscales. As fruitful as these analyses have been, they ignore insights garnered from studying how the diverse members of individual communities contested for power and material resources during periods when former political capitals were in decline. Such volatile circumstances provide ample opportunities for those seeking power to experiment with novel political forms while their would-be subordinates maneuver to undermine these overweening ambitions. Site 128 in the Naco Valley, northwestern Honduras, witnessed these struggles during the Terminal Classic. Taking advantage of the waning power of the Naco Valley's Late Classic rulers at La Sierra, magnates in this small community competed for control over clients and their labor. The resulting political configuration pitted corporate institutions against individual aggrandizers, each using a limited suite of valuable resources to capture the loyalty and labor of supporters. The inability of one faction to vanquish the other created an unstable situation ultimately undermined by unresolved tensions. Though studies of political decline usually highlight the falls of dynasties, there is much to be gained by studying those who scrambled, with varying success, to cobble together sociopolitical structures in the shadows of former states. // [Spanish] Los arqueólogos han investigado el desarrollo de la jerarquía política a los niveles de la casa y de la región. Aunque estos análisis han sido fructuosos, no se toman en cuenta lo que se puede aprender estudiando como los miembros de comunidades lucharon para poder y recursos durante las épocas cuando los capitales políticos se habían caído. Tales circunstancias volátiles proporcionan las oportunidades para aquellos quienes están buscando poder, pueden experimentar con nuevas formas políticas mientras sus clientes luchan en contra de estas ambiciones. El Sitio 128 en el Valle de Naco, Honduras, atestiguó a estas luchas durante el Clásico Terminal. Aprovechándose de la disminución del poder de los lideres de La Sierra durante el Clásico Tardío, los lideres en este pueblo pelearon para controlar las personas y su labor. En la nueva configuración política, instituciones colectivas se peleaban contra individuos poderosos, ambos utilizando recursos limitados para agarar lealtad y labor. La inhabilidad que una facción tenía para vencer a las otras creó una situación inestable. Aunque las épocas de decadencia política no llaman mucha la atención a los arqueólogos, hay mucho que se ganará estudiando a los que intentaron a crear estructuras sociopolíticas en las sombras de los estados anteriores.

Source: Latin American Antiquity, Vol. 15, No. 3. (2004), pp. 251-272.

If you would like to find additional social bookmark based links on the topic of periphery we recommend the Open Tag Directory > Periphery. If you would like to find related tags we recommend Tag Patterns > Periphery.