Spectacular article by Dr. Denise Park in this month’s Cerebrum:

Working Later in Life May Facilitate Neural Health

- “Carmi Schooler at the National Institutes of Health, using a technique that allowed him to assess causal relationships, found that adults who performed intellectually challenging jobs across their life span showed more cognitive flexibility in late adulthood than those who performed less demanding jobs.”
- “Perhaps the most compelling evidence regarding the impact of novel experiences on brain volume and function comes from a study at the Max Planck Institute in Germany. Adults with a mean age of 59 spent three months learning to juggle three balls. Although only about half the participants were able to achieve competence in this complex skill, those who succeeded had increased volume in a mediotemporal area of the visual cortex as well as the nucleus accumbens and the hippocampus, suggesting that sustained novel experience can increase the sizes of neural structures. Notably, the changes in the nucleus accumbens and hippocampus were Read the rest of this entry »

A recent CNN article explains well why a growing number of companies use brainteasers and logic puzzles of a type called “guesstimations” during job interviews:

- “Seemingly random questions like these have become commonplace in Silicon Valley and other tech outposts, where companies aren’t as interested in the correct answer to a tough question as they are in how a prospective employee might try to solve it. Since businesses today have to be able to react quickly to shifting market dynamics, they want more than engineers with high IQs and good college transcripts. They want people who can think on their feet.”

What are technology companies (Google, Microsoft, Amazon) and consulting companies (McKinsey, Boston Consulting Group, Accenture…) looking for? They want employees with good so-called Executive Functions: problem-solving, cognitive flexibility, planning, working memory, decision-making, even emotional self-regulation (don’t try to solve one of these puzzles while being angry, or stressed out).

Want to try a few? Below you have our Top 7 Guesstimations/ Logic Puzzles for Brain Challenge:

Please try to GUESS the answers to the questions below based on your own logical approach. The goal is not to find out (or Google) the right answer, but to Read the rest of this entry »