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Definition of Disonancia

Disonancia, Dissonance in English, is a word that refers to a resonance or sound that does not please, it is unpleasant lacking harmony. It could be a voice or the melody of a musical instrument but without concordance or agreement it will not have the approval given to sounds pleasing to the human ear.

Dissonance does not generate conformity or agreement, it is not euphonic and has no rhythm, in itself, it is a term that refers to something that is not consonant and is unpleasant. This in turn causes tension in the ear and such dissonant sounds provoke rejection.

On the other hand, this term is used to refer to the absence of proportion. That which lacks conformity or balance, thus, when speaking of dissonance it is associated with a strangeness or something that does not fit.


Some words are used to refer to the same thing as not being in conformity with the sound, voice, or something that does not fit and damages a balance. Among those words are:

● Disagreement

● Disproportion



● Discrepancy.

ORIGIN OF Disonancia

The word comes from dissonantia, a word of Latin origin and also from the French dissonance, both meaning: dissonance, disagreeable sound, combination of sounds lacking consonance and strange thing or out of reason.


In addition to the above described meanings of dissonance, in 1957, thanks to the psychologist Leon Festinger, the term cognitive dissonance appears because it was mentioned in his book “Theory of Cognitive Dissonance”. In its pages he explains about the behavior of individuals when they encounter incongruities in their lives.

This term Cognitive Dissonance refers to an internal discomfort or tension that people perceive when they have a personal belief and this is challenged by new information that is contradictory. This generates a psychological conflict and affects behavior by perceiving this incompatibility of ideas about the same aspect.