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  1. Navigational Experience and the Preservation of Spatial Abilities into Old Age Among a Tropical Forager‐Farmer Population.Helen E. Davis, Michael Gurven & Elizabeth Cashdan - 2023 - Topics in Cognitive Science 15 (1):187-212.
    Navigational performance responds to navigational challenges, and both decline with age in Western populations as older people become less mobile. But mobility does not decline everywhere; Tsimané forager-farmers in Bolivia remain highly mobile throughout adulthood, traveling frequently by foot and dugout canoe for subsistence and social visitation. We, therefore, measured both natural mobility and navigational performance in 305 Tsimané adults, to assess differences with age and to test whether greater mobility was related to better navigational performance across the lifespan. Daily (...)
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  • Cultural Change Reduces Gender Differences in Mobility and Spatial Ability among Seminomadic Pastoralist-Forager Children in Northern Namibia.Helen E. Davis, Jonathan Stack & Elizabeth Cashdan - 2021 - Human Nature 32 (1):178-206.
    A fundamental cognitive function found across a wide range of species and necessary for survival is the ability to navigate complex environments. It has been suggested that mobility may play an important role in the development of spatial skills. Despite evolutionary arguments offering logical explanations for why sex/gender differences in spatial abilities and mobility might exist, thus far there has been limited sampling from nonindustrialized and subsistence-based societies. This lack of sampling diversity has left many unanswered questions regarding the effects (...)
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  • Imaginary worlds are attractive because they simulate multiple adaptive problems and encode real-world information.Lawrence Sugiyama - 2022 - Behavioral and Brain Sciences 45:e301.
    Organisms don't explore for exploration's sake: exploratory psychology is regulated by inputs from multiple adaptations dedicated to processing information from different domains of ancestral adaptive relevance. As holistic representations of environments, imaginary worlds simulate multiple adaptive problems, solutions, and outcomes, thereby engaging numerous emotional systems and providing potentially useful information. Their popularity is thus best understood in terms of the full spectrum of information domains they comprise.
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  • Importance of Path Planning Variability: A Simulation Study.Jeffrey L. Krichmar & Chuanxiuyue He - 2023 - Topics in Cognitive Science 15 (1):139-162.
    Individuals vary in the way they navigate through space. Some take novel shortcuts, while others rely on known routes to find their way around. We wondered how and why there is so much variation in the population. To address this, we first compared the trajectories of 368 human subjects navigating a virtual maze with simulated trajectories. The simulated trajectories were generated by strategy-based path planning algorithms from robotics. Based on the similarities between human trajectories and different strategy-based simulated trajectories, we (...)
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  • Why imaginary worlds? The psychological foundations and cultural evolution of fictions with imaginary worlds.Edgar Dubourg & Nicolas Baumard - 2022 - Behavioral and Brain Sciences 45:e276.
    Imaginary worlds are extremely successful. The most popular fictions produced in the last few decades contain such a fictional world. They can be found in all fictional media, from novels (e.g., Lord of The Rings and Harry Potter) to films (e.g., Star Wars and Avatar), video games (e.g., The Legend of Zelda and Final Fantasy), graphic novels (e.g., One Piece and Naruto), and TV series (e.g., Star Trek and Game of Thrones), and they date as far back as ancient literature (...)
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  • Social Learning and Innovation in Adolescence.Bonnie Hewlett - 2021 - Human Nature 32 (1):239-278.
    This paper examines how innovative skills and knowledge are transmitted and acquired among adolescents in two hunter-gatherer communities, the Aka of southern Central African Republic and the Chabu of southwestern Ethiopia. Modes of transmission and processes of social learning are addressed. Innovation as well as social learning have been hypothesized to be key features of human cumulative culture, enhancing the fitness and survival of individuals in diverse environments. The innovation literature indicates adult males are more innovative than children and female (...)
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