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La danza revela simetría especialmente en los hombres jóvenes
William M Brown1, Lee Cronk, Keith Grochow
1Center for Human Evolutionary Studies, Department of Anthropology, Rutgers University, 131 George Street, New Brunswick, New Jersey 08901-1414, USA. wmbrown@rci.rutgers.edu
Nature
|December 24, 2005
Resumen
La capacidad de bailar está vinculada a la simetría corporal, un marcador de la estabilidad del desarrollo. Este estudio encontró que los individuos simétricos, particularmente los hombres, son mejores bailarines, lo que sugiere que la danza revela la calidad genética durante el cortejo.
Área de la Ciencia:
- Biología evolutiva Biología evolutiva.
- Ecología del comportamiento ecología del comportamiento.
- Evolución humana La evolución humana es la evolución de las personas.
Sus antecedentes:
- La danza juega un papel en el cortejo entre especies, sin embargo, su conexión con la calidad del bailarín es desconocida.
- La simetría corporal, específicamente la asimetría fluctuante (FA), es un indicador clave de la estabilidad del desarrollo y la calidad general en los estudios evolutivos.
Objetivo del estudio:
- Investigar si la calidad de la danza refleja la asimetría fluctuante (FA) de un individuo.
- Para determinar si esta asociación difiere entre bailarines y bailarinas.
- Para explorar cómo la simetría influye en las preferencias de pareja en el contexto de la danza.
Principales métodos:
- Utilizó tecnología de captura de movimiento para crear videos de baile, aislando el movimiento de la apariencia física.
- Evaluar la habilidad de baile de estos videos dentro de una población jamaicana conocida por su énfasis cultural en la danza.
- Las calificaciones de habilidad de baile de los participantes se correlacionaron con sus niveles medidos de asimetría fluctuante (FA).
Principales resultados:
- Se encontró una correlación positiva significativa entre la simetría corporal y la capacidad de baile percibida.
- Esta asociación fue más fuerte para los bailarines masculinos en comparación con las bailarinas.
- Las mujeres calificaron más favorablemente el baile simétrico de los hombres; los hombres simétricos mostraron una mayor preferencia por la simetría en las bailarinas.
Conclusiones:
- La calidad de la danza parece ser una señal honesta de estabilidad del desarrollo y calidad genética.
- Estos hallazgos sugieren que la danza está influenciada por la selección sexual, revelando información importante sobre la calidad subyacente del bailarín.
- El estudio destaca el papel de la danza en la elección de pareja y la señalización en el cortejo humano.
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