This is the place to start if you are considering using ePortfolios with your students/classes. Dr. Barrett is an authority in the field of ePortfolios in the classroom. There are a ton of helpful resources and research articles related to ePortfolios here.
Additional resources from Helen Barrett: http://electronicportfolios.org/
Be sure to check out the following sections located on the page that opens from the above link:
1. "Electronic Portfolio Development"
2. "Frequently-Asked Questions"
3. ePortfolio Google Groups (might be a great way to connect with other teachers using ePortfolios!)
Study found that most people multitask poorly, while a few people might be "supertaskers."
Abstract:
"Driver distraction is a significant source of motor-vehicle accidents.... concurrent cell phone use significantly increases the risk of a motor-vehicle accident.... using a cell phone induces a form of inattention blindness, where drivers fail to notice information directly in their line of sight.... real-world cell-phone interference cannot be practiced away.... a small group of "supertaskers" can [multitask]."
"Sprout Labs apps stimulate a lifelong passion for learning by catering to everyone's individual learning style.
Different parts of the brain are used by different learning styles. Visual learners prefer images and pictures, aural learners prefer sound and music, verbal learners prefer speech and text, and physical learners prefer touch based learning."
It's pretty amazing stuff, really.
According to one hypothesis, dopamine is a reward for unexpected stimuli: "...rewards that are expected do not produce any activation of dopamine cells, but rewards that are greater than expected produce a short-lasting increase in dopamine."
And it has profound effects on cognition:
"It is now known that both dopamine and norepinephrine have essential actions on prefrontal cortical function, and help coordinate cognitive state with arousal state.[28] Dopamine has an "inverted U" influence on prefrontal function through its actions on D1 receptors, where either too little or too much impairs working memory function.[29]"