This paper examines the Berlin-Kay color salience theory and offers four correlates of color salience: earliness of introduction, brevity of expression, frequency of use, and frequency of mention in ethnographic literature. All four correlations support the Berlin-Kay theory. The authors suggest that salience may be “an important general principle of cultural evolution” (1107).

The research presented in this book challenges the notion that languages develop color terms independently of other languages. Authors find a universal inventory of eleven basic color categories from which the basic color terms are drawn. Authors also find an apparent fixed sequence of evolutionary stages through which a language must pass as its color vocabulary increases. A postive correlation between cultural complexity and complexity of color vocabulary is observed.

This article examines the variation in color naming and susceptibility to visual illusions cross-culturally. Results suggest a geographic patterning of color naming and illusion susceptibility which parallels the distribution of eye pigmentation.

Authors study the correlation between maternal behavior and reference to odors in folktales. They find several significant relationships between odor references in folk tales, maternal behavior, and various aspects of infant and child socialization.

This article explores the possible relationship between the cultural evolution of language, music, and genetic variation beyond the level of language families. Due to their linguistic diversity, the authors use a sample of 14 Northeast Asian societies with matching information on their music, genetics, and linguistic patterns. The variables measuring language are lexicon, phonology, and grammar. Then, the authors compare each variable's relationship to music and genetic variation. The results only show a significant correlation between grammar and genetic variation.

This book examines population growth rate and its correlates by testing 274 hypotheses (derived from multiple theories) with an 18-society sample. Forty-one of these hypotheses were significant at the .05 level, leading the author to accept these relationships as reflective of the real world. The 274 hypotheses are grouped into 51 broader hypotheses, and marked by (*) where relationships are significant as designated by the author or by significance p < 0.05.

How is the evolution of language shaped by speaker population size? Through comparative data analyses of 153 language pairs from the Austronesian, Indo-European, and Niger-Congo language families, the authors find that the influence of population size on language evolution is not the same in the three language families. Only in Indo-European languages did a smaller population size of language-speakers significantly predict more word loss.

This study sampled over 4,012 language varieties, comparing their version of 40 generally universal words, such as body parts, water, the sun, pronouns, and common behaviors or animals. These language variations were tested in their association to "specific humidity," the variable used to represent ambient humidity of a language location. Results suggest negative association between the dryness of climate and the utilization of vowels, consitent with the idea that dry air affects the behavior of the larynx.

This paper provides a linguistic study of the effect of lexical acculturation on the names given to days of the week. Findings show that loan words are used most frequently adopted for weekend days, followed by the days of the week that are closest to the weekends, and least frequently adopted for the days in the middle of the seven-day cycle.

Researchers looked at the meaning of various emotion concepts, 'emotion semantics' in an attempt to determine the patterns and processes behind meaning cross-culturally. They used maps of colexification patterns (where semantically related concepts are named with the same word), adjusted Rand indices (ARIs) which indicated the similarities of two community's network structures, and various psychophysiological dimensions to test relationships and patterns of variability /structure in emotion semantics. These methods shed light on the underlying mechanisms behind emotions, both their words and their meanings in languages across the world. Their findings show substantial difference in language families and relationships between geographic proximity of language families and subsequent variation in emotion colexification tied to an evolutionary relationship, while also finding cultural universals in emotion colexification networks with languages primarily differentiating emotions on the basis of valence and activation.