I just finished reading Your Brain at Work by David Rock and it is really good. If you haven't read it I can highly recommend it. Since I think it is so full of good ideas, I decided I wanted to write down my understanding of it while it is fresh. I also recently finished reading Blah, Blah, Blah by Dan Roam and I'm going to use his Vivid style in this text.
The Prefrontal Cortex
Our consciousness is located in an area of the brain called the Prefrontal Cortex (PFC).
The Prefrontal Cortex main responsibilities are: recalling, memorizing, understanding, deciding, and inhibiting.
Recalling, getting information from long term memory into the PFC.
Memorizing, storing information from the PFC into long term memory.
Understanding, connecting new information to the information already stored inside our brain.
Deciding, comparing two or more different items and deciding which one is most suitable.
Inhibiting, preventing information from other parts of our brain and outside interferences from entering the PFC.
Attention is Limited
Paying attention consumes energy and the brain has limited resources available. The more ideas we try to hold in our head at once the less attention we can pay to each of them.
One especially energy consuming task is prioritizing, since it involves most of the ideas that the PFC has to do. In order to be able to prioritize well, we should do this when our minds are fresh. We need to prioritize prioritizing!
In the sixties George A. Milner, experimented with consciousness and came up with the idea that we are only able to hold 7±2 items in attention at once.
The problem with this is that he probably overestimated our abilities. It is more likely that the number is less than four, and the less the better.
Preserve Resources
The more information we can get our of our PFC, the better we will be able to focus on what is in it. Good ways to get things out of our PFC are: write them down, draw them. Visuals are especially good since our brain is very good at dealing with visual information and consumes less resources when dealing with visuals.
Another important task to do to preserve resources is to inhibit low prioritized thoughts. Write them down so that they don't consume your resources any more. Tasks that are not well-defined consume a lot more energy than they are worth.
When comparing items, the less items you need to compare the better. The optimal number of items to compare is two. And it is important to get the ideas out of your head and onto paper, so that you don't have to try to remember the other things while you are debating the merits of one.
New ideas consume more energy than old, since old ideas are just references into long-term memory.
Two techniques for limiting the amount of information you hold in you PFC are chunking and simplification.
Chunking means grouping information into one chunk. It is easier to remember 1978 than to remember 1, 9, 7, 8.
Simplification is a way of ignoring the complexity of a something by just labeling it.
Multi-Tasking
Armed with this information it is easy to see that multi-tasking is a very bad idea. Dual-task interference happens when we try to do two or more things simultaneously. When this happens we loose precision. If accuracy is important don't dive your attention.
If you do need to multi-task, here are some techniques that helps.
- Order things and only work from the front of the queue.
- Explicitly suspend-resume. Do one thing, stop, do another thing, stop, etc. It is a good idea to let others know that you are switching between tasks to let them know when you are paying attention or not.
- Automate it! This means learn it well enough so that you can do it without thinking consciously. More about this in my blog, Rationality is Overrated
Distractions
The brain is easily distracted. It has survived thousands of years by reacting to "a rustle in the bushes".
In our modern world similar, external, distractions come in the form of mobile phones, email, twitter, colleagues, friends, family, etc.
Avoiding distractions, inhibition, take energy, so, it is best to not let the distractions distract you in the first place.
Along with external distractions we also have internal distractions, impulses. It is not as easy to turn off the internal distractions. To do this we need to practice self-control. But self-control is also a limited resource. When you have resisted one impulse, it gets harder to resist the next.
Internal distractions are often triggered when we are thinking of ourselves. We can reduce the likelihood of internal distractions by clearing our mind before we set out on a new task.
We can improve our mental breaking system by practicing, and re-enforce it by doing something physical along with the mental braking.
Getting Stuck
Getting stuck on a problem is called an impasse. To resolve an impasse, we need to let the brain idle. This gives the unconscious part of the brain a chance to solve the problem.
To have insights involves hearing subtle signals and making loose connections. This requires a quiet mind with minimal electrical activity.
Insights occur more frequently when you are relaxed and happy. Take a break, do something interesting. Focus on connections between information instead of details. Simplify problems into a very high-level description.
The Networks of the Brain
In the brain we have two main networks: the narrative network and the direct experience network.
The Narrative Network is the default network when nothing is happening. It keeps a conversation going in the mind. It makes assumptions and figures out plans from them. It is very sequential in the way it works. If I think of this, then this, then this, then this, etc., etc., etc. By just tuning in to this network, we make us very busy indeed. All the time. When we receive information through this network, it is filtered, and interpreted before we can do anything about it.
The Direct Experience Network is our other main network. It is triggered when we let the brain idle, and just "listen" to what our senses tells us. This is often called mindfulness. This network is not sequential like the narrative is. It is immediate and it makes use of the full processing power of the brain and not just the pre-frontal cortex. The sensory information that is received through direct experience include information about the self, about thoughts, feelings, emotions, and internal states.
When we need to get unstuck or unstressed, it is very wise to try to shift over to direct experience. This can be done by focusing on sensory information, such as how the chair feels on our buttocks, how the wind feels on our cheeks, or listening to the sound of birds singing or our own breath. This simple act will allow the brain to get unstuck of its previous ideas. The act is actually not that simple, it is not easy to focus on one thing for more than a few seconds.
Mindfulness
A part of working memory called the executive function "sits above" the other functions monitoring our thinking, choosing how to best allocate resources. Mindfulness is about living in the present and it gives us "the ability to pause before we react." When you are being mindful you are also noticing information about yourself.
When you notice that you are not doing what you should, you are being mindful. You are noticing information about how and what you are thinking. You are noticing inner signals.
"Mindfulness isn't hard, the hard part is to remember to be mindful." -- John Teasdale
Practice, you can be mindful anywhere and with anything.
"The unexamined life is not worth living" --Socrates
Danger and Rewards
The brain tries to minimize danger (away response), and maximize rewards (toward response).
The away response is stronger, faster and longer lasting than the toward response. The away response can reduce cognitive resources, making it harder to think about thinking, making you more defensive and mistakenly classify situations as threats. Trying to suppress an emotion often makes it worse and often makes other people feel uncomfortable.
Labeling an emotion, giving it a name, often reduces the emotion. The label needs to be symbolic, short and succinct.
Reappraisal
Reappraisal is a powerful method for managing increased arousal. It means that you evaluate a situation and see it from a different perspective than you first do. Four forms of reappraisal are: reinterpreting, normalizing, reordering, and repositioning.
Reinterpreting is something we do every day. When we are late for an airplane, we feel worried and hurry our steps, to avoid missing the plane. When we can see the gate and the people waiting for the plane, we automatically reinterpret the situation since we see that we have plenty of time. Nothing has changed, except our interpretation of the situation.
An example of normalization, is when we are at a new job, we may feel worried, since everything is new to us. It is easy to overreact to trivialities that otherwise wouldn't bother us. Normalization is when someone tells you, or you figure it out for yourself, that it is normal to feel worried at a new job. Everybody feels worried, it is normal! We immediately calm down. Nothing, again, has changed, except our interpretation of the situation
Reordering is a larger form of reappraisal. It involves changing the way we prioritize what is valuable to us. If we value two things, such as autonomy and responsibility, they may come in conflict. An example would be working as a member of a team where you are allowed to make independent decisions about how to do your work, allowing you to feel in control of the situation. When you are suddenly offered the job as team lead, you will lose control of the situation, since other people will be responsible for doing the work that you used to do. Your autonomy has decreased since you have to rely on other people to get the work done. You have to reappraise the situation, reorder your priorities, in order to be comfortable with this new situation.
The last form of reappraisal, repositioning, involves putting yourself in someone else's position. In order to understand why they are reacting the way they do. If someone thinks all your ideas are worthless, they obviously don't see the world the way you do. In order to understand why they feel the way they do, you have to try to put yourself in their shoes.
Perhaps they have tried the ideas, you are suggesting, and failed previously. The reason they don't want to you to try it may be in the best interest of everyone; they don't want the project to fail or, it may be simple jealousy; they don't want you to succeed with what they failed with before.
I does not matter what the reason is. By putting yourself in their position you will be in a better position to deal with the arguments when they come.
If you find it dishonest to change your view of the world, you must remember that:
"All the brain can know, it knows from inside itself." --Walter Freeman
If you recognize that all interpretations of the world are just that, interpretations your brain has made, then, having a choice about which interpretation to choose at any moment makes more sense.
People who reappraise more tend to live happier lives. One way to reappraise a situation is to think "It's not me, it's my brain!"
It is also worth noting that reappraisal uses a lot of energy and it is best done when the brain is fresh. But, reappraisal, like everything else, is something you can practice until it becomes habitual.
Expectations
Expectations are the brain paying attention to a possible reward or threat. Expectations alter the way you perceive the world. It is common to fit incoming data into expectations and to ignore data that don't fit.
Met expectations generates a small increase of dopamine. Exceeded expectations generate a large increase of dopamine. And dopamine makes you feel good.
Unmet expectations generates a large drop in dopamine level, and a strong threat response.
The dynamics of expectations can generate upward and downward spirals.
A general feeling of expecting good things generate healthy levels of dopamine and may be the neurochemical marker of feeling happy.
If your expectations are not met, try reappraising, remembering that it is your brain reacting to the dopamine levels.
Collaboration
Maslow's hierarchy of needs may have been wrong and other needs may be as important as the primary needs that he identified.
Social connections are a primary need, as vital as food and water. We know other people by experiencing their states ourselves. Safe connections with others are vital for health and for healthy collaboration. People are classified as friend or foe quickly. Foe is the default. You need to work hard at creating connections to create good collaboration. Connect to people on a human level, by sharing experiences, to create better collaboration.
In order to collaborate well with others it is a good idea to take into account the major areas that we care about socially. The can be summarized by the SCARF model, SCARF stands for Status, Certainty, Autonomy, Relatedness and Fairness.