Desde hace varias décadas los científicos se han preguntado por qué alrededor del 80% de las mujeres, independientemente de si son diestras o zurdas, utilizan el brazo izquierdo para acunar a sus retoños, en lo que parece ser un comportamiento instintivo. El primero en sugerir una explicación fue el psicólogo estadounidense Lee Salk. Inspirándose en el comportamiento de los monos macacos Rhesus, originarios de Asia, propuso quelos latidos del corazón materno eran la causa de tales preferencias. Aunque su teoría estuvo extendida durante un tiempo, estudios posteriores demostraron que, tanto para el feto como para el recién nacido, el sonido predilecto era la voz de su madre, y que los sonidos cardíacos no parecían tener mayor trascendencia.
La hipótesis más fiable llegaba hace unos años de manos de Victoria Bourne y Brenda Todd, de la Universidad británica de Sussex. Estas investigadoras atribuyen la costumbre a un sofisticado proceso en el que están implicados los hemisferios cerebrales de madre e hijo. Así, cuando un niño es acunado en el lado izquierdo de la madre, sus reacciones –llanto, risa, bostezo…– llegan directamente al hemisferio cerebral derecho materno, que es donde se reconocen los gestos emocionales y las expresiones faciales. En consecuencia, se refuerza la relación porque la madre tiene un acceso más rápido e intuitivo a las necesidades del niño.
Fuente: muyinteresante.es
Thanks a lot for this wonderful post article. Cool.
Please let me know if you’re looking for a article author for your weblog. You have some really good articles and I believe I would be a good asset. If you ever want to take some of the load off, I’d really like to write some content for your blog in exchange for a link back to mine. Please shoot me an email if interested. Many thanks!|Have you ever considered about including a little bit more than just your articles? I mean, what you say is valuable and everything. Nevertheless just imagine if you added some great visuals or videos to give your posts more, «pop»! Your content is excellent but with pics and clips, this blog could definitely be one of the greatest in its field. Terrific blog!|Awesome blog! Is your theme custom made or did you download it from somewhere? A design like yours with a few simple tweeks would really make my blog stand out. Please let me know where you got your design. Many thanks|Hello would you mind sharing which blog platform you’re working with? I’m looking to start my own blog soon but I’m having a tough time deciding between BlogEngine/Wordpress/B2evolution and Drupal. The reason I ask is because your layout seems different then most blogs and I’m looking for something unique. P.S Sorry for getting off-topic but I had to ask!|Hi there just wanted to give you a quick heads up. The words in your article seem to be running off the screen in Ie. I’m not sure if this is a format issue or something to do with internet browser compatibility but I figured I’d post to let you know. The style and design look great though! Hope you get the issue fixed soon. Cheers|With havin so much written content do you ever run into any issues of plagorism or copyright violation? My blog has a lot of completely unique content I’ve either authored myself or outsourced but it seems a lot of it is popping it up all over the internet without my authorization. Do you know any solutions to help stop content from being ripped off? I’d certainly appreciate it.|Have you ever considered writing an e-book or guest authoring on other websites? I have a blog centered on the same topics you discuss and would really like to have you share some stories/information. I know my readers would enjoy your work. If you are even remotely interested, feel free to send me an e mail.|Hey! Someone in my Myspace group shared this site with us so I came to check it out. I’m definitely loving the information. I’m book-marking and will be tweeting this to my followers! Excellent blog and fantastic design.|Superb blog! Do you have any tips and hints for aspiring writers? I’m planning to start my own website soon but I’m a little lost on everything. Would you recommend starting with a free platform like WordPress or go for a paid option? There are so many choices out there that I’m totally confused .. Any ideas? Thanks!|My developer is trying to persuade me to move to .net from PHP. I have always disliked the idea because of the costs. But he’s tryiong none the less. I’ve been using Movable-type on a number of websites for about a year and am nervous about switching to another platform. I have heard very good things about blogengine.net. Is there a way I can transfer all my wordpress content into it? Any kind of help would be greatly appreciated!|Does your blog have a contact page? I’m having problems locating it but, I’d like to shoot you an e-mail. I’ve got some recommendations for your blog you might be interested in hearing. Either way, great site and I look forward to seeing it develop over time.|It’s a shame you don’t have a donate button! I’d without a doubt donate to this brilliant blog! I guess for now i’ll settle for bookmarking and adding your RSS feed to my Google account. I look forward to fresh updates and will share this site with my Facebook group. Chat soon!|Greetings from Idaho! I’m bored to death at work so I decided to browse your site on my iphone during lunch break. I enjoy the info you present here and can’t wait to take a look when I get home. I’m shocked at how quick your blog loaded on my mobile .. I’m not even using WIFI, just 3G .. Anyways, good site!|Hey there! I know this is kinda off topic however I’d figured I’d ask. Would you be interested in exchanging links or maybe guest authoring a blog post or vice-versa? My site addresses a lot of the same topics as yours and I think we could greatly benefit from each other. If you might be interested feel free to send me an email. I look forward to hearing from you! Excellent blog by the way!
Aw, this was a very nice post. In concept I want to put in writing like this moreover � taking time and precise effort to make an excellent article however what can I say I procrastinate alot and on no account appear to get one thing done.
Youre so cool! I dont suppose Ive read anything like this before. So nice to search out anyone with some authentic thoughts on this subject. realy thank you for starting this up. this website is something that is needed on the net, someone with a bit of originality. useful job for bringing something new to the internet!