Showing posts with label psychology. Show all posts
Showing posts with label psychology. Show all posts

2013-05-22

The shallows (book review)

The Shallows: What the Internet Is Doing to Our Brains
Nicholas G. Carr
W.W. Norton & Company, 2010

After my post of Thinking, fast and slow, I'll now review another book of the brain: The Shallows by Nicholas Carr. The subtitle of the book, What the internet is doing to our brain, is well chosen as we may see.

The author tells us about his adoption of computers and the internet. Using the internet intensively, Carr noticed: "Once I was a scuba diver in the sea of words. Now I zip along the surface like a guy on a Jet Ski." How could this happen?

Citing several studies, Carr explains our brains are flexible. They continuously create new connections and disconnect others. They're work in progress, so to say.

Mankind developed intellectual technologies like maps, clocks, typewriters, books, computers and the internet. These inventions extend and support our mental powers. When Gutenberg introduced the art of printing in the mid 15th century, he enabled people to share ideas and knowledge. Computers perform calculations and the internet helps us to find and classify information.

Websites provide many hyperlinks enabling surfers to seek out additional information. As powerful computers and bandwith became cheaply available, pictures, audio and video were also added to websites. All these rich media create a lot of stimuli competing for attention. The net is therefore by design an interruption system. (!) Readers therefore get distracted, concentration goes down and reading becomes scanning.

Our brain needs to process incoming information thoroughly and deeply to save it in our longterm memory. It needs to be meaningfully and systematically associated with the knowledge already in our memory. This is only possible after deep reading: concentrated reading and understanding what we read.

When surfing, we are confronted with a lot of stimuli. Concentration goes down and we scan in stead of read pages. This way we consume lots of information but we don't process it thoroughly.

Well, there's a lot more in the book. Carr mentions many studies, opinions of philosophers and developments. The crux however is the many distractions of the internet causing less concentration and less understanding. The book is well written and interesting to read as the internet is part of our lives.

For me the The Shallows was an eye opener. I use - both for work and private - computers and the internet intensively. It allows me to gather a bunch of information. But as I think of this book, I recognize a lack of concentration. Reading becomes scanning. Therefore I think I should focus on fewer topics and websites. That'll be a challenge as I'm broadly interested. ;-)

Do you recognize Carr's statement?

Happy reading!

2013-05-08

Thinking, fast and slow (book review)

Thinking, Fast and Slow
Daniel Kahneman
Farrar, Straus and Giroux, 2011

Today, I'll review another book of the Personal MBA list. Thinking, Fast and Slow by Daniel Kahneman. The author explains that the human mind consists of two systems with the prosaic names system 1 and 2.
"System 1 operates automatically and quickly, with little or no effort and no sense of voluntary control.
System 2 allocates attention to the effortful mental activities that demand it, including complex computations. The operations of System 2 are often associated with the subjective experience of agency, choice, and concentration."
Thinking of ourselves, we identify ourselves with sytem 2. Conscious and rational. However, system 1 has great influence as Kahneman makes clear in his book. Too often, we answer an easier question than the question we meet and/or jump to conclusions.

When we are awake, there's interaction between the two systems: 1 is active and 2 is in low-effort mode. The first generates suggestions, like impressions and feelings, for the other. System 2 endorses most of them into beliefs or voluntary actions. If system 1 doesn't have an answer, number 2 is immediately activated. Kahneman clarifies the interactions between to two systems with many examples and experiments.

The author furthermore describes his research together with economists and decision making scientists. He does so by introducing two fictitious characters: Econs and Humans. The first category lives in the land of theory and think and act logical and coherent. In other words, these rely on system 2. Humans act in the real world, have limited information and can't predict future. Their decisions rely heavily on system 1 even if they think they decide rational. Kahneman describes many experiments about people making choices and learns his readers that the decision that seems best, not always is the best. Our brain, in fact system 1, let us jump to conclusions. He warns us, Humans, to base our decisions on relevant facts, not on suggestions. As Kahnemans states: "What You See, Is All There Is" (WYSIATI).

The last part of the book is about a third pair, the two selves, and experiencing pain or pleasure. Everyone has an experiencing and a remembering self. The first is about the question Does is hurt now? The other about How was it on the whole? Based on research, Kahneman explains that our memories are based on the peaks and the end of an experience, for instance pain or listening to music. Furthermore, the duration is neglected. Therefore our memories are not only irreliable but also a bad base for future decisions.

Not being a psychologist, I like Thinking, Fast and Slow . Kahneman explains in a clear way his research and findings. The chapters are well chosen and compact. However, reading all experiments requires, according to me, some persistence to continue. Personally I liked the statistics but I can imagine not everybody does. All in all an interesting book about a topic I rarely know. Now I should be able to make better decisions. ;-) Do you decide rationally?

Happy reading!

2013-03-16

Mind performance hacks (book review)

Mind Performance Hacks: Tips & Tools for Overclocking Your Brain
Ron Hale-Evans
O'Reilly, 2006

Here's my next book review and again, it's not a new book. Nevertheless, I think Mind Performance Hacks by Ron Hale-Evans is interesting. It's more or less a continuation of Mind Hacks by Tom Stafford and Matt Webb. The book contains 75 brain hacks. Just as I wrote earlier, this way of hacking has nothing to do with criminal activities. As the author states:
"Mind performance hacks are a technology as new as the newest smart drugs and as old as language. In the broadest sense, every time you learn something, you're hacking your brain. This book is designed to help you learn to hack your brain intentionally, safely, and productively."
Hale-Evans describes every hack in the same structure. It's possible to read the entire book at once or just the hacks that might interest you. They are grouped by theme.
  • Memory
  • Information processing
  • Creativity
  • Math
  • Decision making
  • Communication
  • Clarity
  • Mental fitness
Among others, the author learns his readers how to overcome the tip-of-the-tongue effect (# 12), to speak your brain's language (# 15) including why that's useful and to hold a question in mind (# 30) when solving a complex problem. Other examples are to put down the calculator (# 35) using some simple tricks and warming up your brain (# 66) before getting busy.

Reading the entire book - I really did - I learned some interesting things. As the author added also additional resources like reports, books and websites, the book contains tons of information. There's also the Mentat Wiki for still more information. However some of the tips and tricks, I'll never use as they seem useless to me or I simply don't like them. An example of these, is playing boardgames (# 67). Being a Christian, I neither like the hacks in chapter 7, Clarity. Therefore my advice is to read Mind Performance Hacks and use the hacks you like and/or are useful to you.

Did you read this book? What's your opinion about it?

Happy reading!