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Why can’t we remember being babies?

Source: http://science.howstuffworks.com/life/inside-the-mind/why-not-remember-babies.htm

By: Laurie L. Dove

You gaze at the cheerful crowd gathered around you, take a curious look at the chocolate cake set before you and then, just as the everyone starts singing “Happy Birthday,” you do what comes naturally: smash the cake with both hands.

This scenario would be weird, except for the fact that you’re sitting in a highchair. Which would be even weirder, except that you’re turning 1.

Chances are you don’t remember your first or second birthday party — or a host of other events that occurred in early childhood — and you’re not alone. It’s normal to forget your earliest life experiences, despite their crucial and influential nature.

Most adults can’t recall life’s earliest moments unless the events are reinforced by others who often retell them, or the memories are triggered by photographs or other cues.

It’s a phenomenon scientists call childhood amnesia. While you may have been able to recall and describe your second birthday party in great detail for months after it happened, a year later those memories may have faded and, eventually, are lost altogether.

Researchers point to a high turnover rate of childhood memories as one possible culprit, believing that a raft of new experiences simply means some early memories are forced to fall by the wayside.

Up until age 3, children in one study could recall significant events that happened to them within the last year. The high rate of recall continued until age 7, with the study’s participants remembering up to 72 percent of the same events they’d recalled as 3-year-olds. By age 8 or 9, however, most could recollect only 35 percent of the life experiences they’d so vividly described at 3 .

The change, concluded researchers, comes from the way memories are formed as children age. Beginning at 7, children store increasingly linear memories that fit succinctly into a sense of time and space. The very act of remembering events and categorizing them within this personal timeline may cause retrieval induced forgetting, a process that causes older children and adults to prune life’s earliest memories as they recall specific details about other events .

7 weird things money does to your brain

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Source

Money is packed with meaning, and it impacts our personalities, our relationships, and how we think.  As you might imagine, a lot of stuff is going on in our brains when we think about money, and some of it is surprising. Researchers in the emerging field of neuroeconomics are drawing on psychology, neuroscience, and economics to give us picture of the human brain on money. Let’s take a look.

1. Money kills empathy.

According to research, money actually reduces empathy and compassion. One of the key ways humans feel empathy is through reading the facial expressions of other humans. Seeing that someone has a sad face triggers you to feel sad, too. But if you’re rich, not so much. Michael Kraus, the co-author of a study discussed in Time, told the magazine that people with fewer economic resources are conditioned to respond to numerous vulnerabilities and threats, which means they have to be more attuned to social cues. “You really need to depend on others so they will tell you if a social threat or opportunity is coming and that makes you more perceptive of emotions.” Rich people can just sail along without worrying about so many threats, so they tend to ignore how others feel.

Money also makes people behave more aggressively towards others. Even fake money can do it: in a UC Berkeley study, researchers watched two students playing Monopoly, one with much more Monopoly money than the other. At first, the inequality seemed to make the richer student uncomfortable, but soon enough the student with more money got aggressive, smacking his pieces around and taunting the impoverished player. Paul Piff and his fellow psychologists have consistently found that high socio­economic status and interpersonal disregard are closely linked. So much for noblesse oblige.

2. Losing money hurts, literally.

The loss of money is known to share a similar psychological and physiological system with physical pain. Researchers have found that money is actually a pain buffer. In one experiment, participants were asked to rate their response to hot water after counting money. The more money counted, the less pain felt. On the other hand, people who had recently lost money rated the hot water as more painful.  Research also reveals that the anticipation of pain heightens the desire for money.

People also hate losing money more than they love making it. Psychologist and Nobel laureate Daniel Kahneman has suggested this aversion to loss may have evolutionary roots. For the primitive human, threats or losses were a higher priority than opportunities, because an opportunity might come again, but a threat could be your last.

3. More money, fewer ethics.

Just thinking about money can cause you to behave unethically. Researchers from Harvard and the University of Utah found that people were more likely to lie and make immoral decisions after being exposed to money-related words. The mere exposure to the concept of money set off a “business decision frame” in study participants, causing them to think narrowly in terms of cost-benefit calculations and further their own interests without giving a damn about moral niceities.

Money makes you dangerous, too. Researchers at Berkeley observed crosswalks in San Francisco and found that people driving luxury cars were three times less likely than those in more modest vehicles to give the right away to pedestrians, and they were four times more likely to cut off other drivers.

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