At the heart of obsessive-compulsive disorder (OCD) are the intrusive, often distressing, thoughts. My skin is dirty… I must have left the gas on and my house will burn down… But why do some obsessive thoughts compel the person to act on them, while others don’t? And how are some people with OCD able to control the compulsion to act – to repeatedly wash their hands, or to go home to check appliances, for example – while others can’t?
As the authors of a new study on OCD, published in Clinical Psychological Psychotherapy, point out: “A single negative intrusive thought may result in an avalanche of compulsive behaviour, whereas even hours of intrusive thought may prompt little or no compulsive behaviour in some individuals.”
Distressing conditions including PTSD, depression and anxiety have something in common: a difficulty in suppressing unwanted thoughts. Negative self-judgments and re-experienced traumas directly impact mental health and make recovery harder by intruding into the new experiences that should provide distance and a mental fresh start. Understanding what’s involved in thought suppression may therefore be one key to helping people with these conditions. Now research in Nature Communications has uncovered an important new brain process that may help explain why some people struggle to control their thoughts.
Operating in our second language can have some intriguing psychological effects. We swear more freely and linger longer on embarrassing topics than normal. We’re also less susceptible to cognitive biases. According to psychologist Constantinos Hadjichristidis at the University of Trento, this is because a second language discourages us from relying on intuitive thinking. In a new paper in The Quarterly Journal of Experimental Psychology, Hadjichristidis and his colleagues have shown another way that this manifests – when thinking in a foreign language, we’re less prone to superstition.
The hot-headed “macho man”, who acts first and thinks later, has long been popular in movies. Now there’s psychological evidence to support it. A new study in the Psychological Science finds that a short-term rise in testosterone – as might occur when in the presence of an attractive potential mate, or during competition – shifts the way men think, encouraging them to rely on quick, intuitive, and generally less accurate, judgements, rather than engaging in careful, more deliberate thought.
To lead a good life, we need to make good decisions: manage our health and financial affairs, invest in appropriate relationships, and avoid serious lapses like falling for online scams. What equips us to do this? One candidate is IQ: after all, people who score higher on intelligence tests tend to go on to do better academically and in their careers. But many of us know intellectual titans who still make grave errors of judgment in their lives. Book-smart doesn’t necessarily make you life-smart, and a new article in the journal Thinking Skills and Creativity examines the utility of IQ in navigating existence, and how another mental ability may put it in the shade.
Our autobiographical memory is fundamental to the development of our sense of self. However, according to past research, it may be compromised in autism, together with other skills that are also vital for self understanding, such as introspection and the ability to attribute mental states to others (known as mentalising).
For example, experiments involving autistic children have highlighted retrieval difficulties, “impoverished narratives”, and a greater need for prompting, while also suggesting that semantic recall (facts from the past) may be impaired in younger individuals.
Now a UK research team, led by Sally Robinson from London’s St. Thomas’ Hospital, has published the first attempt to assess the nature of – and relationships between – autobiographical memory, mentalising and introspection in autism. Reporting their findings in Autism journal, the group hope their results will shed more light on the way that autistic children and teens develop a sense of self.
Thinking like a scientist is really hard, even for scientists. It requires putting aside your own prior beliefs, evaluating the quality and meaning of the evidence before you, and weighing it in the context of earlier findings. But parking your own agenda and staying objective is not the human way.
Consider that even though scientific evidence overwhelming supports the theory of evolution, a third of Americans think the theory is “absolutely false”. Similarly, the overwhelming scientific consensus is that human activity has contributed to climate change, yet around a third of Americans doubt it.
We Brits are just as blinkered. In a recent survey, over 96 per cent of teachers here said they believed pupils learn better when taught via their preferred learning style, even though scientific support for the concept is virtually non-existent. Why is it so hard to think like a scientist? In a new chapter in the Psychology of Learning and Motivation book series, Priti Shah at the University of Michigan and her colleagues have taken a detailed look at the reasons, and here I’ve pulled out five key insights:
In the UK we’re familiar with the practical implications of increasing population density: traffic jams, longer waits to see a doctor, a lack of available housing. What many of us probably hadn’t realised is how living in crowded environment could be affecting us at a deep psychological level, fostering in us a more future-oriented mindset or what evolutionary psychologists call a “slow life history” strategy.
In their paper in the Journal of Personality and Social Psychology, Oliver Sng at the University of Michigan and his colleagues present a range of evidence that shows how this strategy plays out in the more patient ways that we approach our relationships, parenting and economic decisions. In essence, the researchers are proposing that the presence of greater numbers of other people in close proximity prompts us to invest in the future as way to compete more effectively.
Psychologists have become very interested in the causes and consequences of our beliefs about free will. For instance, many consider that progress in neuroscience is likely to undermine our belief in free will (though this has been challenged). And in terms of consequences, less belief in free will has been shown to affect our own behaviour and judgments, for example increasing our tendency to cheat, and making us more lenient towards other people’s criminal culpability.
One unexplored issue is how experiencing deep, romantic love is likely to affect our belief in free will – or indeed vice versa. A new series of online studies in Consciousness and Cognition has made a start, looking at whether thinking about a more passionate versus less passionate relationship is linked with a greater or lesser belief in free will and, separately, stronger or lesser belief in determinism (the idea that the future is pre-determined and beyond our control). The answer, it turns out, is both. Thinking about a more intense passionate love affairs tends to go hand in hand with stronger beliefs in free will and stronger beliefs in determinism. Continue reading “Experiencing passionate love linked with more belief in free will AND determinism”→