The Basque Center on Cognition, Brain and Language (BCBL) has been trying to find answers to the questions: How do we acquire language? How do we use it for communication? And more recently, how does the brain learn a second or third language, and is there any difference learning it from birth or acquire it later on in life? Finding answers to these questions is a key focus of the work at this Spanish research center. The BCBL is situated in San Sebastian, Spain, – the heart of the Basque Country where inhabitants speak both Spanish and Basque, two languages that are completely unrelated, yet are used side by side in daily life.
The BCBL uses an array of modern technology to help with its research, including high-end functional magnetic resonance imaging (fMRI), encephalography (EEG), and magnetoencephalography (MEG) equipment. Coupled together, with a carefully developed range of experimental paradigms and tests and a pool of local volunteers willing to be checked, researchers can collect quality data on how the brain “behaves” when language challenges are presented.
For fMRI, the center chose the Siemens MAGNETOM® Trio, a Tim (total imaging matrix) system, 3 Tesla fMRI unit for its excellent performance. As a volunteer slides into the MAGNETOM Trio, video information is fed onto a small screen above the volunteer’s head and audio is piped into the headphones. As a language test progresses, the results are recorded and displayed on a bank of computer screens. On images of incredible clarity, researchers watch different parts of the brain “light up” as challenges are posed to the volunteers, such as a series of words that are totally or partially contradictory combined with some that are not. Scientists at BCBL want to know more about which parts of the brain are activated when things “make sense” and which parts are activated when it is confused
The enormous benefit of actually being able to see this neuro-cognitive activity – represented visually by the MRI system – means that researchers can make what they call “neuro-correlates” or matches between brain activity and behavioral activity. “It’s like an enormous jigsaw,” says BCBL Scientific Director Manuel Carreiras. “The truth is, nobody really knows how language works or how we communicate.” It is a jigsaw that is far from being completed. Yet step by step, every day, they are moving a little bit closer.