This may be stating the obvious, but if the notes from a chord are played sequentially, and not necessarily very rapidly, then they will be heard "as a chord". So, for example, if you play C, E and G sequentially, you will perceive the chord C major (=CEG). This implies that the response of the neurons in the cortical map (or maps) that respond to chords must be somewhat independent of whether the different tones involved are simultaneous or sequential (and at least some of the neurons involved must have a response function where the neuron responding to a particular tone remains active after that tone has finished). In which case perception of the chord is not a very good criterion for determining perception of simultaneity. (My guess is that such a "chord-perception" cortical map actually exists to perceive relationships between different pitch values within a single speech melody, and because of how it operates, it just happens to be able to respond to relationships between simultaneous tones as well.)
Philip Dorrell.
Emilio Renard wrote:
Dear all:
I am a new member of Auditory list. (I´m sorry!, I don´t speak english, so my english is bad).
I would like know if there is some studies about the perception of sequentials tones as simultaneous tones. More specifically, I would like know if a sequence of two (musical) tones, they very rapid and without silence between they, can be heard simultaneously, as a chord. And if it is so, I would like know the physical conditions for that it occur.
Sincerely, Emilio.
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