Postgenomic Proceedings vol1 iss1

Faculty of 1000 may have all the recent worthy, boring papers but it doesn't have a 'science shiznit' section. For that you need the awesome collaborative filtering power of the science blogosphere.

I'm talking about those papers outside of your field that you actually want to read. Research that makes interesting anecdotes and tabloid headlines. Don't look so haughty. You love it. You regret spending the past five years writing about techniques for automatic gene annotation when you could have been watching Dutch people having sex in MRI machines. Admit it.

Anyway, here are some interesting papers and posts from the past couple of weeks on Postgenomic. It's deliberate that the papers aren't linked to directly: go read the relevant blog post, instead.

We're all crap at making decisions about our future
(via PsyBlog)

The idea of making mistakes about what we might want in the future has been termed 'miswanting' by Gilbert and Wilson (2000). They point to a range of studies finding we are poor at predicting what will make us happy in the future. My favourite is a simple experiment in which two groups of participants get free sandwiches if they participate in the experiment - a doozie for any undergraduate.

One group has to choose which sandwiches they want for an entire week in advance. The other group gets to choose which they want each day. A fascinating thing happens. People who choose their favourite sandwich each day at lunchtime also often choose the same sandwich. This group turns out to be reasonably happy with its choice.

Amazingly, though, people choosing in advance assume that what they'll want for lunch next week is a variety. And so they choose a turkey sandwich Monday, tuna on Tuesday, egg on Wednesday and so on. It turn out that when next week rolls around they generally don't like the variety they thought they would. In fact they are significantly less happy with their choices than the group who chose their sandwiches on the day.

Get any chocolates this Valentine's Day?
(via El Gentraso)

... it may just be to lower your resistance to accepting an extra large ejaculate.

Nuptial gifts are food items or inedible tokens that are transferred to females during courtship or copulation . Tokens are of no direct value to females, and it is unknown why females require such worthless gifts as a precondition of mating. One hypothesis is that token giving arose in species that gave nutritious gifts and males exploited female preferences for nutritional gifts by substituting more easily obtainable but worthless items.

[..]

In this review, I explore the proposition that nuptial gifts act as sensory traps: by exploiting the female's gustatory responses, the male may be able to entice females to accept superfluous matings and/or transfer greater volumes of ejaculate than are in the female's reproductive interests.

Gift composition is more likely to be tailored to increasing the attractiveness of the gift to the female and/or maximizing gift handling time than to suit the female's nutritional needs … evidence suggests that the gift enables the male to overcome the resistance of the female to accepting an extra large ejaculate.

The science of romatic love
(via neurodudes, in a roundabout way)

Maybe the controlling anger activity in the 'rejected in love' group was because you just made them sit in the waiting room with 17 intense lovebirds?

Mammals and birds regularly express mate preferences and make mate choices. Data on mate choice among mammals suggest that this behavioural 'attraction system' is associated with dopaminergic reward pathways in the brain. It has been proposed that intense romantic love, a human cross-cultural universal, is a developed form of this attraction system. To begin to determine the neural mechanisms associated with romantic attraction in humans, we used functional magnetic resonance imaging (fMRI) to study 17 people who were intensely 'in love'. Activation specific to the beloved occurred in the brainstem right ventral tegmental area and right postero-dorsal body of the caudate nucleus. These and other results suggest that dopaminergic reward and motivation pathways contribute to aspects of romantic love. We also used fMRI to study 15 men and women who had just been rejected in love. Preliminary analysis showed activity specific to the beloved in related regions of the reward system associated with monetary gambling for uncertain large gains and losses, and in regions of the lateral orbitofrontal cortex associated with theory of mind, obsessive/compulsive behaviours and controlling anger. These data contribute to our view that romantic love is one of the three primary brain systems that evolved in avian and mammalian species to direct reproduction. The sex drive evolved to motivate individuals to seek a range of mating partners; attraction evolved to motivate individuals to prefer and pursue specific partners; and attachment evolved to motivate individuals to remain together long enough to complete species-specific parenting duties. These three behavioural repertoires appear to be based on brain systems that are largely distinct yet interrelated, and they interact in specific ways to orchestrate reproduction, using both hormones and monoamines. Romantic attraction in humans and its antecedent in other mammalian species play a primary role: this neural mechanism motivates individuals to focus their courtship energy on specific others, thereby conserving valuable time and metabolic energy, and facilitating mate choice.

Music preferences and personality
(via PsyBlog and MindHacks)

How is information about people conveyed through their preferences for certain kinds of music? Here we show that individuals use their music preferences to communicate information about their personalities to observers, and that observers can use such information to form impressions of others. Study 1 revealed that music was the most common topic in conversations among strangers given the task of getting acquainted. Why was talk about music so prevalent? Study 2 showed that (a) observers were able to form consensual and accurate impressions on the basis of targets' music preferences, (b) music preferences were related to targets' personalities, (c) the specific cues that observers used tended to be the ones that were valid, and (d) music preferences reveal information that is different from that obtained in other zero-acquaintance contexts. Discussion focuses on the mechanisms that may underlie the links between personality and music preferences.

From PsyBlog:

What some music preferences mean for personality:

• Likes vocals: extraverted
• Likes country: emotionally stable. On the face of it, this is bizarre really because country music is all about heartache. Either the emotionally stable are attracted to country music or it has a calming effect on the unstable!
• Likes jazz: intellectual

This raises the question of why people listen to particular types of music. One theory is that people simply find some music more pleasant for aesthetic or cognitive reasons. Another is that people use music to regulate their mood: I want to get hyper for a night out so I put on some dance music. Another is that music is related to identity; people listen to music that expresses they way they see themselves. It seems likely that a combination of all these theories is probably true.

Boys grow breasts after using lavender and tea tree oils
(via MedPundit)

The first, aged four, had been experiencing symptoms for two to three weeks. His mother said she had recently begun applying a 'healing balm' containing lavender oil to his skin.

The second boy, who was 10, had been developing enlarged breast tissue over the previous five months.When questioned, it emerged that he was using a shampoo and hair gel containing lavender oil and tea tree oil every morning.

The third boy, aged seven, had a one-month history of gynaecomastia. He had been using lavender-scented soaps and skin lotions. His twin used the soap, but not the lotions, and had not developed the condition.

Each of the boys stopped using the relevant products, and several months later the tissue growth was found to have subsided.

The researchers confirmed their suspicion that the oils acted like estrogens by exposing cultured estrogen-responsive breast cancer cells to them. The cells behaved as if they were in the presence of estrogen, and the response was greater the greater the dose of the oils.

Listening to music while you exercise: does it make a difference?
(via Sciencebase)

This study examined the effects of loudness and tempo of background music on exercise performance. A total of 30 volunteers performed five 10-min exercise sessions on a treadmill. The music listened to whilst exercising was either fast/loud, fast/quiet, slow/loud, slow/quiet or absent. Measures of running speed, heart rate, perceived exertion and affect were taken. Significant effects and interactions were found for running speed and heart rate across the different music tempo and loudness levels. More positive affect was observed during the music condition in comparison to the 'no music' condition. No significant differences for perceived exertion were found across conditions. These results confirm that fast, loud music might be played to enhance optimal exercising, and show how loudness and tempo interact.

Shocker: big pharma uses sneaky marketing techniques
(via a comment in a BMC journal)

BACKGROUND: Patient organisations may be exposed to conflicts of interest and undue influence through pharmaceutical industry (Pharma) donations. We examined advertising and disclosure of financial support by pharmaceutical companies on the websites of major patient organisations. METHOD: Sixty-nine national and international patient organisations covering 10 disease states were identified using a defined Google search strategy. These were assessed for indicators of transparency, advertising, and disclosure of Pharma funding using an abstraction tool and inspection of annual reports. Data were analysed by simple tally, with medians calculated for financial data. RESULTS: Patient organisations websites were clear about their identity, target audience and intention but only a third were clear on how they derived their funds. Only 4/69 websites stated advertising and conflict of interest policies. Advertising was generally absent. 54% of sites included an annual report, but financial reporting and disclosure of donors varied substantially. Corporate donations were itemised in only 7/37 reports and none gave enough information to show the proportion of funding from Pharma. 45% of organisations declared Pharma funding on their website but the annual reports named more Pharma donors than did the websites (median 6 vs. 1). One third of websites showed one or more company logos and/or had links to Pharma websites. Pharma companies' introductions were present on 10% of websites, some of them mentioning specific products. Two patient organisations had obvious close ties to Pharma. [..]