Stone Tool-Making and Brain Activation: Position Emission Tomography (PET) Studies

This study introduces to archaeology a new experimental technique for examining the relationship between stone tool-making and brain function. The principal focus of this exploratory study was the development of effective methods for the identification and examination of the regions of the modern human brain recruited during the manufacture of simple (Oldowan or Mode I) stone tools. The functional brain imaging technique employed, Positron Emission Tomography (PET), examines task-related brain activity by assessing changes in regional cerebral blood flow during specific tasks. The single-subject study reported here represents a heuristic, initial exploration of this subject. Results indicate that during stone tool-making there was heavy activation of cortical and subcortical regions of the brain associated with motor and somatosensory processing. Especially interesting was the high degree of activation in areas known to be involved with complex spatial cognition requiring integration of diverse sensory inputs (e.g. vision, touch, and proprioception, or sense of body position and motion). Expansion of such higher-order association areas has been particularly important during the course of human evolution. This single-subject pilot study demonstrates the application of the PET brain imaging technique to the study of early stone technologies and suggests hypotheses to be tested in more comprehensive studies in the future.     

China and Japan in Myanmar: Aid,Natural Resources and Influence

Abstract

This article highlights the parallels between Japan’s leveraging of foreign aid to secure access to strategic natural resources in the post-World War II period, and China’s similar use of foreign aid since the early 1990s. It then shows how both countries have applied similar strategies in their aid programs in Myanmar, and points out how dramatic shifts in Myanmar’s domestic politics have shaped their opportunities for economic engagement. China seized upon Myanmar’s political transition in 1988 to expand its aid program, while Japan has responded to Myanmar’s reform measures since 2010 by resuming its aid efforts. The article concludes by considering the potential for China–Japan cooperation through their aid programs in Myanmar.     

Perilous Journeys: Visualising the Racialised “Refugee Crisis”

This article explores the benign and malignant power of the visual in the racialised framing of the ongoing “European refugee crisis”. Bringing together literatures on racial discourses, visuality, storytelling and decoloniality for the first time, this paper breaks new ground in our understandings of the political possibilities that visual storytelling offers in shifting “lines of sight” in an increasingly vitriolic anti‐refugee climate. It does this by analysing prominent graphic narratives created by the non‐profit organisation PositiveNegatives, animating the refugee experiences of Syrian men in Scandinavia. We consider the affective engagements that such progressive storytelling promotes and the decolonial potential invested in it, arguing that the modality and content of narratives of this genre offer important scope to provoke encounter and empathy. Contributing to geographies of race, migration, visuality and decoloniality, we suggest that these narratives allow new and gently radical ways of resisting the dehumanising impetus of mainstream media discourses.     

SPREAD AND BACKWASH EFFECTS FOR NONMETROPOLITAN COMMUNITIES IN THE U.S.

Few studies empirically estimate the effects of metropolitan growth on nonmetropolitan communities at a national scale. This paper estimates the growth effects of 276 MSAs on population in 1,988 nonmetropolitan communities in the United States from 2000 to 2007. We estimate the distance for growth spillovers from MSAs to nonmetropolitan communities and test the assumption that a single MSA influences growth. We compare three methods of weighting cities’ influence: nearest city only, inverse‐distance, and relative commuting flow to multiple cities. We find the inverse‐distance approach provides slightly more reliable and theoretically supportable results than the traditional nearest city approach.     

Slag as evidence for early iron production in arctic Norway

Physical, structural and chemical analyses were made on slag remains obtained from three sites in Iron Age arctic Norway. Scanning electron microscopy and x‐ray microanalysis were employed to confirm that the slag can only be a result of iron production. Although a distinction between slag produced by smithing and smelting proved difficult, consideration of the processes and the resources available support the assumption that both were practiced at the sites. The results provide firm evidence of iron production in the region of Norway north of the 69th parallel, by at least the sixth century AD.