晚期普莱斯托时代的人口统计和现代人类行为的出现
Adam Powell1, Stephen Shennan, Mark G Thomas
1Research Department of Genetics, Evolution, and Environment, University College London, Wolfson House, 4 Stephenson Way, London NW1 2HE, UK.
概括
人口因素,而不是认知能力,解释了现代人类行为的时间. 人口密度和移民影响了早期人类文化复杂性的发展.
科学领域:
- 古人类学古人类学.
- 考古学的考古学
- 人口遗传学 人口遗传学
背景情况:
- 现代人类行为随着符号和技术复杂性的增加而出现.
- 欧亚大陆上古石器时期的过渡 (4万5千年前) 反映了非洲南部 (4万5千年前) 的早期特征.
研究的目的:
- 研究人口统计学在文化复杂性的出现和维持中的作用.
- 解释现代人类行为出现的地理差异.
主要方法:
- 对考古记录进行象征性和技术复杂性的分析.
- 随着时间的推移,对区域人口规模的遗传估计.
- 模拟亚人口密度和迁移活动对文化技能积累的影响.
主要成果:
- 人口结构是维护文化复杂性的关键因素.
- 区域亚人口密度和迁移活动影响文化技能积累的空间结构.
- 早期上古石器时代欧洲的人口密度与撒哈拉以南非洲的人口密度相似,在现代行为最初出现时.
结论:
- 人口因素足以解释现代人类行为出现的地理和时间变化.
- 不需要提高认知能力来解释这些差异.
- 人口动态在人类文化的发展中起到了至关重要的作用.
相关概念视频
Impression Management Techniques I: Managing Appearances
220
Appearance is a multidimensional aspect of self-presentation that encompasses observable attributes such as clothing, grooming, speech, and nonverbal behavior. These elements are often strategically managed to align with socially constructed expectations in different settings. For instance, individuals tailor their appearance during job interviews, social gatherings, or athletic events to meet the perceived norms of those environments.Contextual Adaptation and Social SignalsThe research...
220
Modern Molecular Taxonomy
700
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
700
Brick Durability, Strength, and Appearance
685
Brick durability, strength, and appearance are crucial factors in construction, influencing the choice of bricks for specific applications. The process of freeze-thaw, for instance, significantly affects brick durability. This phenomenon occurs when water absorbed by a brick expands as it freezes, potentially causing damage when it melts and refreezes. Bricks are graded for durability: SW-grade bricks are the most durable, offering high strength and low water absorption, followed by MW-grade...
685
What is Behavior?
10.3K
Behaviors are actions that an organism engages in—they can be related to finding food, reproducing, defending against threats, and many other possible actions. Behaviors include activities related to the environment around the animal—such as migration—as well as social interactions within a species or population. Many behaviors involve motor output—that is, muscle movements—while others involve less visible actions, such as learning.
10.3K
Behaviorism
4.9K
The field of behaviorism was pioneered by figures such as Ivan Pavlov, John B. Watson, and B.F. Skinner fundamentally shifted the focus of psychology to the observable and controllable aspects of human and animal behavior. This shift marked a critical evolution in the discipline, emphasizing scientific rigor and experimental methodology.
The core premise of behaviorism is its focus on observable behavior rather than internal thoughts or feelings. This approach argues that true scientific...
The core premise of behaviorism is its focus on observable behavior rather than internal thoughts or feelings. This approach argues that true scientific...
4.9K
Behavior Therapy
729
Behavior therapy incorporates diverse techniques rooted in classical conditioning principles to address maladaptive behaviors and anxiety disorders. These methods aim to reduce avoidance behaviors, foster adaptive coping mechanisms, and alter associations between stimuli and responses, making them effective in a wide range of therapeutic contexts.
Exposure therapy is a cornerstone of behavioral treatment for anxiety disorders. It involves systematic exposure to feared stimuli, either in real...
Exposure therapy is a cornerstone of behavioral treatment for anxiety disorders. It involves systematic exposure to feared stimuli, either in real...
729


