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Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
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Communication
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Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
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Machines
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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
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Introduction to Developmental Psychology
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Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
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Three Developmental Domains
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Neuronal Communication
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Acortando el Inventario de Desarrollo Comunicativo de MacArthur-Bates utilizando Pruebas Adaptativas Computarizadas
IEEE journal of biomedical and health informatics
|February 11, 2026
Resumen
El aprendizaje automático combinado con pruebas adaptativas computarizadas (ML-CAT) acorta significativamente el Inventario de Desarrollo Comunicativo MacArthur-Bates (MB-CDI) para evaluar el desarrollo léxico temprano, mejorando la eficiencia y la confiabilidad.
Área de la Ciencia:
- Psicología del desarrollo Psicología del desarrollo.
- La lingüística computacional es la lingüística computacional.
- Aprendizaje automático Aprendizaje automático.
Sus antecedentes:
- La identificación temprana de los trastornos del desarrollo en bebés y niños pequeños es crucial para una intervención efectiva y la reducción de costos.
- El Inventario de Desarrollo Comunicativo MacArthur-Bates (MB-CDI) es una herramienta estándar para evaluar el desarrollo léxico temprano, pero es largo y requiere mucho tiempo.
- Los métodos de evaluación existentes enfrentan limitaciones en cuanto a eficiencia y adaptabilidad.
Objetivo del estudio:
- Desarrollar una versión abreviada del MB-CDI utilizando el aprendizaje automático y las pruebas adaptativas computarizadas (ML-CAT).
- Evaluar la precisión y eficiencia del ML-CAT en la predicción de las puntuaciones de desarrollo léxico.
- Para comparar el rendimiento de ML-CAT con los métodos existentes, incluida la Teoría de Respuesta a Elementos (IRT).
Principales métodos:
- Utilizó un enfoque de aprendizaje automático combinado con pruebas adaptativas computarizadas (ML-CAT).
- Adaptado la secuencia de palabras presentadas en función de las respuestas individuales del sujeto para acortar la evaluación.
- Valido el ML-CAT en cinco idiomas diferentes.
Principales resultados:
- ML-CAT predice de manera confiable las puntuaciones H-MB-CDI utilizando un promedio de solo 10 palabras con una precisión del 94% al 96%.
- ML-CAT demostró un rendimiento superior en comparación con los métodos no adaptativos y los modelos basados en IRT.
- ML-CAT mostró una mejor precisión en el manejo de hablantes atípicos (excepcionales) en comparación con los métodos IRT.
Conclusiones:
- ML-CAT ofrece un método más eficiente y confiable para evaluar el desarrollo léxico en bebés y niños pequeños.
- La duración más corta de la evaluación reduce la carga sobre los sujetos y los cuidadores, lo que potencialmente aumenta la confiabilidad.
- ML-CAT facilita el cribado comunitario más amplio y más frecuente para los trastornos del desarrollo.

