This paper examines the relationship between the complexity of a society's material culture and its development of cognitive technologies for numeration and timekeeping. The researcher claims that the resulting positive correlation between these variables as support for a theory of material culture as 'scaffolding' for number concepts, providing tangible, shareable, manipulable forms for abstract numerical constructions.

In order to examine the development of lexical numbers (LN), the linguistic rules which allow for expression of high quantities and complex numerical operations, Overmann examines LN's association with grammatical number (GN), an expression of quantity based on the distinction between singular and multiple entities. LN and GN generally occur together, but LN is also found in a significant number of societies lacking GN, indicating that the two are both independent and related. A subsequent analysis of geographic distribution of LNs and GN indicates that LN may emerge prior to GN as a result of the interaction of numerosity (the ability to perceive different quantities) with tactile engagement with material structures (e.g. tools, the hand) which may subsequently lead to the development of GN. Overmann examines the theoretical implications of and explanations for these findings, and discusses how the present study contributes to the knowledge of linguistic frameworks.

In order to examine the development of lexical numbers (LN), the linguistic rules which allow for expression of high quantities and complex numerical operations, Overmann examines LN's association with grammatical number (GN), an expression of quantity based on the distinction between singular and multiple entities. LN and GN generally occur together, but LN is also found in a significant number of societies lacking GN, indicating that the two are both independent and related. A subsequent analysis of geographic distribution of LNs and GN indicates that LN may emerge prior to GN as a result of the interaction of numerosity (the ability to perceive different quantities) with tactile engagement with material structures (e.g. tools, the hand) which may subsequently lead to the development of GN. Overmann examines the theoretical implications of and explanations for these findings, and discusses how the present study contributes to the knowledge of linguistic frameworks.

In order to examine the development of lexical numbers (LN), the linguistic rules which allow for expression of high quantities and complex numerical operations, Overmann examines LN's association with grammatical number (GN), an expression of quantity based on the distinction between singular and multiple entities. LN and GN generally occur together, but LN is also found in a significant number of societies lacking GN, indicating that the two are both independent and related. A subsequent analysis of geographic distribution of LNs and GN indicates that LN may emerge prior to GN as a result of the interaction of numerosity (the ability to perceive different quantities) with tactile engagement with material structures (e.g. tools, the hand) which may subsequently lead to the development of GN. Overmann examines the theoretical implications of and explanations for these findings, and discusses how the present study contributes to the knowledge of linguistic frameworks.

In order to examine the development of lexical numbers (LN), the linguistic rules which allow for expression of high quantities and complex numerical operations, Overmann examines LN's association with grammatical number (GN), an expression of quantity based on the distinction between singular and multiple entities. LN and GN generally occur together, but LN is also found in a significant number of societies lacking GN, indicating that the two are both independent and related. A subsequent analysis of geographic distribution of LNs and GN indicates that LN may emerge prior to GN as a result of the interaction of numerosity (the ability to perceive different quantities) with tactile engagement with material structures (e.g. tools, the hand) which may subsequently lead to the development of GN. Overmann examines the theoretical implications of and explanations for these findings, and discusses how the present study contributes to the knowledge of linguistic frameworks.

A model for the development of counting systems is tested. The hypothesis presented predicts that unpredictable climate conditions result in inconsistent food supply which leads to the need for food storage and, thus, a system to account for the stored food. Results strongly support this hypothesis.

This study uses Bayesian phylogenetic regression modelling across 131 largely non-industrial societies to test how variation of punishment is impacted by social, economic, and political organization. The authors focus on the presence of norm violations and types of punishments, and explores their relationships. The norm violations include adultery, rape, religious violations, food violations, and war cowardice. While the types of punishment are reputational, material, physical, or education. This study suggests a hypothesis for each type of punishment in relation to socioecological variables.

This study examines why conflict emerges and how societies resolve it. The authors posit that increasing societal scale and differentiation create more potential for conflict but also more complex forms of conflict resolution. Analysis supports this theory, showing that measures of cultural complexity are positively associated with legal mechanisms for conflict resolution.

This study examines the relationship between population pressure and socioeconomic complexity in a cross-cultural sample of hunter-gatherer groups. The author suggests a causal component to the positive correlations found, arguing that increasing population pressure on food resources requires increasing storage dependence, which in turn drives sedentism and other indicators of socioeconomic complexity.

This article challenges ideas of cultural progressionism through an analysis of counting systems. Cultural adaptation in both biotic and abiotic environments is examined, and results suggest that culture adapts to both the human-made environment and the physical environment. The author asserts that “interpreting divergent and convergent behaviors as due to differences and similarities of local environments” is superior to a progressionist approach to cultural change (62).