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Las ovejas no se olvidan de una cara
K M Kendrick1, A P da Costa, A E Leigh
1Laboratory of Cognitive and Developmental Neuroscience, Babraham Institute, Cambridge CB2 4AT, UK. keith.kendrick@bbsrc.ac.uk
Nature
|November 9, 2001
Resumen
Las ovejas poseen sistemas cerebrales especializados para el reconocimiento facial, similares a los humanos. Los estudios muestran que las ovejas pueden reconocer hasta 50 caras de ovejas individuales durante más de dos años, lo que demuestra una notable memoria social.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- La cognición animal es la cognición animal.
- Psicología Comparada y Psicología Comparada.
Sus antecedentes:
- Los seres humanos poseen mecanismos neuronales especializados para el reconocimiento facial.
- Las ovejas también exhiben habilidades de reconocimiento facial, utilizando sistemas neuronales similares en los lóbulos temporal y frontal.
- La participación del hemisferio cerebral derecho se observa en el reconocimiento facial de las ovejas.
Objetivo del estudio:
- Para investigar las capacidades de reconocimiento facial a largo plazo de las ovejas.
- Para determinar la duración de las ovejas pueden recordar rostros individuales.
- Explorar las bases neuronales del reconocimiento social en las ovejas.
Principales métodos:
- Las ovejas fueron presentadas con rostros de personas conocidas.
- La memoria de reconocimiento facial se probó durante períodos prolongados.
- Se analizó la actividad del circuito neuronal relacionada con el procesamiento facial.
Principales resultados:
- Las ovejas demostraron la capacidad de recordar hasta 50 caras de ovejas individuales.
- Esta retención de memoria persistió durante más de 2 años.
- Los circuitos neuronales especializados mantuvieron la codificación selectiva de las caras incluso después de largas separaciones.
Conclusiones:
- Las ovejas poseen una sólida memoria de reconocimiento facial a largo plazo.
- Los circuitos neuronales especializados en las ovejas apoyan la discriminación y el recuerdo de rostros individuales.
- Estos hallazgos resaltan la evolución convergente de los mecanismos de reconocimiento facial en humanos y ovejas.
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