individual based models | Alberto Acerbi

individual based models

The role of redundant information in cultural transmission and cultural stabilization

Redundant copying has been proposed as a manner to achieve the high-fidelity necessary to pass on and preserve complex traits in human cultural transmission. There are at least 2 ways to define redundant copying. One refers to the possibility of …

Biases in cultural transmission shape the turnover of popular traits

The neutral model of cultural evolution, which assumes that copying is unbiased, provides precise predictions regarding frequency distributions of traits and the turnover within a popularity-ranked list. Here we study turnover in ranked lists and …

Regulatory traits: Cultural Influences on Cultural Evolution

We use the term *regulatory traits* to indicate traits that both regulate cultural transmission (e.g., from whom to learn) and are themselves culturally transmitted. In the first part of this contribution we study the dynamics of some of these traits …

Old and Young Individuals’ Role in Cultural Change

We explore the impact of age on cultural change through simulations of cultural evolution. Our simulations show that common observations about the relationship between old and young naturally emerge from repeated cultural learning. In particular, …

Behavioral constraints and the evolution of faithful social learning

Behavioral “traditions”, i.e. behavioral patterns that are acquired with the aid of social learning and that are relatively stable in a group, have been observed in several species. Recently, however, it has been questioned whether non-human social …

The Logic of Fashion Cycles

Many cultural traits exhibit volatile dynamics, commonly dubbed fashions or fads. Here we show that realistic fashion-like dynamics emerge spontaneously if individuals can copy others' preferences for cultural traits as well as traits themselves. We …

Regulatory Traits in Cultural Evolution

We call “regulatory traits” those cultural traits that are transmitted through cultural interactions and, at the same time, change individual behaviors directly influencing the outcome of future cultural interactions. The cultural dynamics of some of …

Modeling imitation and emulation in constrained search spaces

Social transmission of behavior can be realized through distinct mechanisms. Research on primate social learning typically distinguishes two forms of information that a learner can extract from a demonstrator: copying actions (defined as …

Predation and the phasing of sleep: an evolutionary individual-based model

All mammals thus far studied sleep, yet important questions remain concerning the ecological factors that influence sleep patterns. Here, we developed an evolutionary individual-based model to investigate the effect of predation pressure on prey …

The Sometimes Evitable Route to Conservatism and Persuasiveness. A Reply to Xue and Costopoulos