Beneficios de aprender lengua de señas (visión periférica y tiempo de respuesta)
https://www.frontiersin.org/articles/…/fpsyg.2017.00050/full
Desarrollo de la comunicación gestual intencionada en bebés oyentes
https://es.scribd.com/document/234952363/Dialnet-DesarrolloDeLaComunicacionGestualIntencionadaEnBeb-2683217
Beneficios Lingüísticos Derivados del Uso Temprano de la Lengua de Signos en Bebés Oyentes
http://uvadoc.uva.es/bitstream/10324/18168/1/TFG-M-L552.pdf

Actas sobre el aprendizaje de la lengua de señas española https://www.siis.net/…/docume…/Actas_Congreso_CNLSE_2014.pdf

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Goodwyn SW, Acredolo LP, and Brown C. 2000. Impact of symbolic gesturing on early language development. Journal of Nonverbal Behavior. 24: 81-103.

Oller DK. 2000. The emergence of the speech capacity. Lawrence Erlbaum.
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Johnston JC, Durieux-Smith A and Bloom K. 2005. Teaching gestural signs to infants to advance child development: A review of the evidence. First Language 25(2): 235-251.
http://journals.sagepub.com/doi/10.1177/0142723705050340

Kirk E, Howlett N, Pine KJ, Fletcher BC. 2013. To Sign or Not to Sign? The Impact of Encouraging Infants to Gesture on Infant Language and Maternal Mind-Mindedness. Child Dev. 84(2):574-90.
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Enhancing Early Communication through Infant Sign Training
Rachel H Thompson, Nicole M Cotnoir-Bichelman, Paige M McKerchar, Trista L Tate, and Kelly A Dancho
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1868823/

Resumen de varios estudios por Signing Time:  http://www.signingtime.net/pdf/st/STResearch_Summary.pdf