Partial connectivity increases cultural accumulation within groups
نویسندگان
چکیده
منابع مشابه
Partial connectivity increases cultural accumulation within groups.
Complex technologies used in most human societies are beyond the inventive capacities of individuals. Instead, they result from a cumulative process in which innovations are gradually added to existing cultural traits across many generations. Recent work suggests that a population's ability to develop complex technologies is positively affected by its size and connectedness. Here, we present a ...
متن کاملAccumulation of independent cultural traits.
In a species capable of (imperfect) social learning, how much culture can a population of a given size carry? And what is the relationship between the individual and the population? In the first study of these novel questions, here we develop a mathematical model of the accumulation of independent cultural traits in a finite population with overlapping generations.
متن کاملAccumulation and Connectivity of Coarse Woody Debris in Partial Harvest and Unmanaged Relict Forests
When a tree dies, it continues to play an important ecological role within forests. Coarse woody debris (CWD), including standing deadwood (SDW) and downed deadwood (DDW), is an important functional component of forest ecosystems, particularly for many dispersal-limited saproxylic taxa and for metapopulation dynamics across landscapes. Processes, such as natural disturbance or management, modif...
متن کاملViewing socio-affective stimuli increases connectivity within an extended default mode network
Empathy is an essential ability for prosocial behavior. Previous imaging studies identified a number of brain regions implicated in affective and cognitive aspects of empathy. In this study, we investigated the neural correlates of empathy from a network perspective using graph theory and beta-series correlations. Two independent data sets were acquired using the same paradigm that elicited emp...
متن کاملHypercube Connectivity within ccNUMA Architecture
The Silicon Graphics Origin2000TM and Onyx2TM systems are structured to fit a customer’s specific applications and problem sizes. This is accomplished with the company’s ccNUMA (cache coherent non-uniform memory access) architecture, which can link multitudes of processors together in such a way that the number of interconnections scales with the growth of the system, avoiding the bandwidth lim...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2016
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1518798113