Recursos para estudiantes de inglés de todos los niveles, profesores y traductores. Para aprender o mejorar tu inglés en forma divertida.
Listening Comprehension - Comprensión Auditiva

Cómo realizar este ejercicio de comprensión auditiva

- Siempre encontrarás una pequeña introducción, que puede ayudarte a comprender el tema tratado.

- En los textos presentados se han ocultado algunas palabras, que deberás escribir en los casilleros correspondientes. A medida que lees el texto, escucha el audio con atención para descubrir dichas palabras.

- Quizás puedes deducir las palabras sin necesidad de escuchar el audio. Pero, pon atención al audio para confirmar si realmente se trata de la respuesta correcta.

- Puedes escuchar el audio cuantas veces sea necesario. Pero es recomendable hacerlo solamente dos veces (o tres veces como máximo) ya que esa es la forma en que normalmente se realizan estos ejercicios en exámenes y pruebas internacionales.

- Comprueba tus aciertos pulsando el botón "Corregir". Si no has podido completar todas las palabras, pulsa el botón "Solución" para ver cuáles eran las que te faltaban.

Turning Images Into Sensations to Assist the Blind
Topic: Transcript of radio broadcast. Source: VOA

Escucha el audio y completa los recuadros.

This is the VOA Special English Health Report.

Years ago, scientists began to learn that certain parts of the brain had certain . For example, one part was responsible for breathing; another dealt with the sense of smell.

Scientists thought our brains could not change. But then they discovered that the brain could sometimes itself when conditions required.

Josef Rauschecker is a professor of physiology and biophysics at Georgetown University in Washington. He wondered if this ability to change could explain the idea that other senses in blind people improve to balance their of vision.

JOSEF RAUSCHECKER: "The stories about [the] disproportionate number of blind musicians, for example. Just think of Ray Charles, Stevie Wonder, so many. Andrea Bocelli, if you prefer music."

The visual cortex is the part of the brain that processes sight. But earlier research by Professor Rauschecker and other scientists found that it can also do other jobs. The research showed that the brains of blind people can use the visual cortex to sound and touch.

But the visual cortex is divided into separate parts, or modules. Each module normally performs different jobs related to vision.

JOSEF RAUSCHECKER: "Now the question is: Do blind people have that same or similar organization, that these modules actually stay put and just get rededicated to touch and hearing? And the answer is yes."

Professor Rauschecker and researchers from Finland and Belgium found this answer using an fMRI scanner. That means functional magnetic resonance .

The machine recorded brain activity as twelve blind people and twelve sighted people performed tasks involving sound and touch. For example, they would try to decide which direction sounds were coming from, or which finger was feeling vibrations.

Professor Rauschecker says large parts of the visual cortex became active during the sound and touch tests, but only in the blind people.

He says this study and earlier research has led to an experimental device designed to help the blind. It can process images taken by a into sensations that could be used by a blind person wearing it.

JOSEF RAUSCHECKER: "So what we're hoping to do is build this device that would transform basically visual information into auditory information and then this amazing reservoir of the blind brain to process sounds and tactile information."

The study is in the journal Neuron.

And that's the VOA Special English Health Report. You can find transcripts, MP3s and podcasts of our reports at voaspecialenglish.com. You can also follow us on Facebook and Twitter at VOA Learning English. I'm Jim Tedder.

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Más ejercicios similares: Nivel Principiantes - Nivel Intermedio - Nivel Avanzado

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