Today we are fortunate to interview Dr. Jerri Edwards, an Associate Professor at University of South Florida’s School of Aging Studies and Co-Investigator of the influencial ACTIVE study. Dr. Edwards was trained by Dr. Karlene K. Ball, and her research is aimed toward discovering how cognitive abilities can be maintained and even enhanced with advancing age.

Main focus of research

Alvaro Fernandez: Please explain to our readers your main research areas

Jerri Edwards: I am particularly interested in how cognitive interventions may help older adults to avoid or at least delay functional difficulties and thereby maintain their independence longer. Much of my work has focused on the functional ability of driving including assessing driving fitness among older adults and remediation of cognitive decline that results in driving difficulties.

Some research questions that interest me include, how can we maintain healthier lives longer? How can training improve cognitive abilities, both to improve those abilities and also to slow-down, or delay, cognitive decline? The specific cognitive ability that I have studied the most is processing speed, which is one of the cognitive skills that decline early on as we age.

ACTIVE results

Can you explain what cognitive processing speed is, and why it is relevant to our daily lives?

Processing speed is mental quickness. Just like a computer with a 486 processor can do a lot of the same things as a computer with a Pentium 4 processor, but it takes much longer, our minds tend to slow down with age as compared to when we were younger. We can do the same tasks, but it takes more time. Quick speed of processing is important for Read the rest of this entry »

We are delighted to introduce you to Wes Carroll who has graciously created a few new puzzles to bend all those sharp brains out there! Keep checking back, as we will continue to release new puzzles regularly.

Wes aspires to the Renaissance ideal of excellence in multiple fields: he is the head of Do The Math private tutoring services, Puzzle Master for the Ask A Scientist lecture series, and an internationally touring performer and teacher of music. Find out more at wescarroll.com.

With no further ado, the first puzzle!

Party For Polyglots

Difficulty: MEDIUM
Type: LOGIC

Question:
Of the 100 people at a recent party, 90 spoke Spanish, 80 spoke Italian, and 75 spoke Mandarin. At least how many spoke all three languages?

Have you solved it yet? If you are working the problem, making hypotheses, testing your ideas, and coming up with a solution, you are using your frontal lobes. This is great exercise because the frontal lobes follow the “last hired, first fired” adage. They are they last areas of your brain to develop and the first to suffer the ravages of time and stress. So, keep exercising! Just like your voluntary muscles, regular brain workouts will help you keep more active neuronal circuits in your brain which helps you function better today, as well as create a protective barrier against aging.

Click to read the answer.

Let us know what you think of the puzzle and please welcome Wes!