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Interacciones afectivas y conductuales entre manipuladores humanos y ratas de laboratorio

Chloe Crichton Feddo¹, Emma S J Robinson¹, Justyna K Hinchcliffe¹

¹University of Bristol, School of Psychology and Neuroscience, Biomedical Sciences Building, University Walk, Bristol, BS8 1TD, UK.

Behavioural brain research

|February 21, 2026

Resumen

La confianza y la angustia de los manipuladores humanos influyen en el comportamiento y las vocalizaciones de las ratas. La angustia de la rata se correlacionó con la angustia del manejador e inversamente con la confianza del manejador, impactando el bienestar animal.

Área de la Ciencia:

Comportamiento animal Comportamiento animal.
Ciencias de los animales de laboratorio Ciencias de los animales de laboratorio.
Etología Etología Etología.

Sus antecedentes:

Las interacciones entre humanos y animales son cruciales en entornos de laboratorio.
La influencia de las características del manipulador en el comportamiento de la rata no se entiende bien.

Objetivo del estudio:

Investigar la relación entre las características del manipulador humano (confianza, experiencia, excitación) y los indicadores afectivos de la rata.
Para analizar el impacto del comportamiento humano en las vocalizaciones ultrasónicas de rata (USV) y la angustia conductual.

Principales métodos:

Análisis correlacional de los rasgos del manipulador y las puntuaciones de angustia conductual de la rata.
Medición de las vocalizaciones ultrasónicas de ratas (50-kHz y 22-kHz USVs) durante y después de la manipulación.
Monitoreo del controlador y la excitación fisiológica de la rata (ritmo cardíaco).

Principales resultados:

Las ratas exhibieron VUS de 50 kHz más altos (afecto positivo) después de la manipulación; no se detectaron VUS de 22 kHz (aversivo).
La angustia conductual de la rata se correlacionó positivamente con la angustia del manipulador y negativamente con la confianza del manipulador.
La experiencia del manipulador se correlacionó con la confianza, pero no directamente con el comportamiento de la rata o la frecuencia cardíaca del manipulador.

Conclusiones:

El comportamiento humano observable, particularmente la confianza y la angustia, influye significativamente en los estados emocionales de las ratas.
El estado emocional y la confianza del manipulador son factores clave que afectan el bienestar de las ratas en entornos de laboratorio.
Los hallazgos tienen implicaciones para mejorar el bienestar animal y la fiabilidad de los resultados científicos en la investigación de roedores.

Palabras clave:

Manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo manejo.El ritmo cardíaco es el ritmo cardíaco.Las ratas ratas ratas ratas ratas ratas.vocalizaciones por ultrasonidos.el bienestar social.

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