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The present paper examined the assumption of strong reproductive isolation (RI) between Homo neanderthalensis and Homo sapiens, as well as the question of what form it might have taken, using insights from the parallel case of chimpanzee–bonobo hybridization. RI from hybrid sterility or inviability was thought unlikely based on the short(More)
There are few published studies of attention-deficit/hyperactivity disorder (ADHD) in adult inmates, and even fewer studies that have considered ADHD in adult inmates by gender. The present study examined the prevalence of ADHD, its subtypes, and associated psychological and neuropsychological comorbidity as a function of gender in a sample of 3,962 inmates(More)
Recursion is a topic of considerable controversy in linguistics, which stems from its varying definitions and its key features, such as its universality, uniqueness to human language, and evolution. Currently, there appear to be at least two common senses of recursion: (1) embeddedness of phrases within other phrases, which entails keeping track of(More)
In the debate about the demise of the Neandertal, several scholars have claimed that humanity's nearest relatives were indistinguishable archaeologically, and thus behaviorally and cognitively, from contemporaneous Homo sapiens. They suggest that to hold otherwise is to characterize Neandertals as inferior to H. sapiens, a false dichotomy that excludes the(More)
Numeracy is a paradigmatic example of the close dovetailing of culture, language, and cognition. The two systems central to the numerical competence—one for the exact representation of small numbers and one for the approximation of larger numbers—are relatively old in phylogenetic terms and available almost from birth. Together, they provide the basis for(More)
As humans, we share most of our biological make-up with our closest primate relatives, yet we stand out not just from them but from all other species with respect to our cultural diversity, our capacity for language, and particularly our cognitive skills. While of prime interest for the field of cog-nitive science, the still-open question of which factors(More)
OBJECTIVE This study compared the effectiveness of two group treatments, behavioral activation (BA) and cognitive therapy (CT), in reducing subsyndromal anxiety and depressive symptoms in a sample of Iranian university students. METHOD Twenty-seven Iranian university students who scored 18 or higher on the depression subscale and 16 or higher on the(More)
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