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Academia Mexicana de Neurología, A.C.

2012, Number 4

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Rev Mex Neuroci 2012; 13 (4)

Can the mind be read with functional magnetic resonance imaging?

Muntané-Sánchez A, Moro-Esteban ML

Language: Spanish
References: 26
Page: 233-238
PDF size: 121.16 Kb.


ABSTRACT

Introduction: Functional magnetic resonance imaging (fMRI) is based on neuronal activity and blood flow. fMRI has been proposed for the investigation of cognition; however, there are aspects of it that cannot be easily assessed with fMRI. Objective: To review the current evidence on the use of fMRI in the study of cognition. Development: fMRI has applications: planning neurosurgical procedures, study of neurological patients, in psychiatry, pain, assessment of the motor cortex, language and hearing. In the exploration of cognition by fMRI the research focuses on localization patterns of brain activity and mental processes. It would be desirable to consider which regions have activity patterns that enable prediction of the involvement of a particular process. It has been reported that mental states can be identified by a statistical classification from brain imaging data with an accuracy of above 80%. Knowing what a person is thinking is different from an overall reading of cognition. For example, knowledge and self-reflection. In the knowledge a subject picks an object without changing neither the subject, nor the object. The object is present in the subject not as physically possessed, but it is present as an alien object. This is what is called concept. Conclusion: fMRI does not identify a concept, although in its preparation it involves brain areas. To find a correlation between patterns of brain activity and a category of an object does not imply reading minds or to know how a mental process is elaborated.


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