INVESTIGADORES
ARNEODO Ezequiel Matias
congresos y reuniones científicas
Título:
Subject-driven bioprosthetical avian vocal organ
Autor/es:
EZEQUIEL M. ARNEODO; YONATAN SANZ PERL; MINDLIN, GABRIEL.
Lugar:
Huerta Grande
Reunión:
Congreso; SAN 2011 (Reunión anual de la Sociedad Argentina de Neurociencias); 2011
Institución organizadora:
Sociedad Argentina de Neurociencias
Resumen:
Songbirds are an ideal animal model to study general mechanisms
underlying complex, learned motor behavior, as it is birdsong. While much
effort focuses on neural control, we highlight the relevance of the interplay
between the central mechanisms of motor control and the highly nonlinear
peripheral biomechanical systems.
In this work, we build an electronic syrinx with aims in the exploration
mechanisms underlying birdsong production. The most widely studied
songbird species is the zebra finch (Taeniopygia guttata). Its vocal organ is
capable of generating a large variety of acoustic signals, which range from
simple whistles to highly complex sounds. We propose a mathematical
model for the zebra finch syrinx, in which physiologically meaningful
variablesdetermine the acoustic features of the solutions; and we
implement this model in a digital signal processor. This device is capable of
recording the pressure gesture of a muted bird and integrating the model
on-lineto produce synthetic birdsong, which replaces the bird's own
auditory feedback.This subject-controlled prosthetic device allows for a set
of altered auditory feedback experiments,where feedback is altered
consistently with modifications of the motor instructions intended to
produce them.