## Hard brain teaser to challenge your pattern recognition

Here’s a quick but hard brain teaser to challenge your ability to find a pattern. In the table below, each row across follows the same pattern. See if you can discern the pattern and fill in the missing number in the bottom row.

For added challenge, time how long it takes you to complete the puzzle. Then, pass it along to someone else and see who can solve it faster…

7 4 8
3 9 7
6 5 10
? 8 4

Have you solved it yet? If not, here’s a hint:

If you read your figures like words in the West,
then multiply your efforts and subtract the rest.

WARNING:  Answer and solution follows. Try to solve the puzzle before you read further. Read the rest of this entry »

## Under new CEO, Lumosity to expand brain training platform with focus on applied skills and broader social, wellness factors

Lumosity’s Stumble Reveals How We Think About Thinking (BuzzFeed News):

“The ads were pervasive, popping up on CNN, Fox News, NPR, and Google searches. And they were persuasive: Playing Lumosity games would do your brain good…But these claims sounded a little too rosy to the Federal Trade Commission, which Read the rest of this entry »

## Math Brain Teaser: How to Choose a Mans Shirt

You have been invited to an important fundraising gala at your old college and decided that this black-tie event demands a short collar super white Italian shirt, like the one you bought years ago for your wedding. When you bravely tried the wedding shirt on (size 16), your wife noted that the collar suffocates you and you need about 1/4″ more space everywhere in-between your neck and the collar all around your neck. What size shirt do you need to buy?  In case you don’t know the shirt size 16 means that a tape wrapped around your neck and two fingers positioned flat upfront will measure 16 inches.

## Math Brain Teaser: Unfinished Thesis

You are spending the summer polishing your thesis in the university library. Every day you take the escalator into the subway, turn right and catch a train going up North to the university. One day you realize that the trains on your left going in the opposite direction can bring you to the beach. It is summer and nothing is wrong with some leisure. You carefully calculate that even if you spend half of the remaining summer vacation in the library it should be enough to finish the thesis. You decide to spice up your summer by Read the rest of this entry »

## Update: How Stress and Emotions Impact Brain Performance

Time for the October edi­tion of the monthly SharpBrains eNewsletter, featuring this time several articles on the impact of stress, emotions, and self-regulation, on our brain’s structure and performance.

We are pleased to bring to Sharp­Brains read­ers a new 6-part series on the Neu­ro­bi­ol­ogy of Stress, based on a recent book by Sharp­Brains con­trib­u­tor Dr. Jerome Schultz. The first two parts are already available: Part 1 – The Human Brain and How It Responds to Stress and Part 2 – Gray Matters.

Brain Study Links Emotional Self-Regulation and Math Performance: A new study strongly suggests the need to “help stu­dents reap­praise the sit­u­a­tion and con­trol emo­tions before they even get into a task”. While the study focused on math anxiety and performance, the implications are relevant outside the classroom too.

Reminder: Brain Fitness Q&A Sessions in November: As we announced a few weeks ago, we are hon­ored to present an upcom­ing Brain Fit­ness Q&A Series. The first session, featuring Dr. Gary Small, will take place Novem­ber 1st, 2011, 2-3pm US Eeastern Time. Please mark your calendar and join us at sharpbrains.com then! (no need to do anything prior to the session).

Music Training Can Enhance Verbal Intelligence and Executive Function: Very inter­est­ing new study pub­lished in Psy­cho­log­i­cal Sci­ence on the value of music training (vs. simply listening to music).

Gaming and Neuroscience: Opportunities and Challenges: A summary of impressions by researcher  Aki Nikolaidis based on his participation in the recent conference Enter­tain­ment Soft­ware and Cog­ni­tive Neu­rother­a­peu­tics Con­fer­ence (ESCoNS) at the Uni­ver­sity of Cal­i­for­nia San Fran­cisco.

Families’ Perspectives on ADHD and its Treatment: Dr. David Rabiner presents new data on fam­i­lies’ expe­ri­ence with ADHD and its treat­ment.

Brain Games and Optical Illusions @ National Geographic: Sev­eral Sharp­Brains friends rec­om­mend this recent 3-part National Geo­graphic TV mini-series.

Math Brain Teaser for Kids and Adults: Archimedes Grave: A fun puzzle to exer­cise our brains a bit, sub­mit­ted by new con­trib­u­tor Maria Lando. Enjoy!

As seen in The New York Times, The Wall Street Journal, CNN, and more, SharpBrains is an independent market research firm tracking applied brain science. Explore our most popular resources HERE.

### Top 10 Brain Teasers and Illusions

1. You think you know the colors? Try the Stroop Test
2. Check out this brief attention experiment
3. Test your stress level
4. Guess: Are there more brain connections or leaves in the Amazon?
5. Quick brain teasers to flex two key men­tal mus­cles
6. Count the Fs in this sentence
7. Can you iden­tify Apple’s logo?
8. Ten classic optical illu­sions to trick your mind
9. What do you see?
10. Fun Mental Rotation challenge