Creativity, Drugs, Mental health May 17, 2019May 17, 2019

Study Finds Microdosing Psychedelics Can Be Beneficial, But Not In The Way That Users Most Expect

What if you could take a psychedelic drug regularly in such tiny quantities that the immediate effects were not discernible, yet over time it led to a range of psychological benefits, especially enhanced focus and heightened creativity? That’s the principle behind “microdosing” – a controversial technique that’s exploded in popularity ever since the publication of a 2011 book The Psychedelic Explorers Guide and a 2015 Rolling Stone article titled How LSD Microdosing Became The Hot New Business Trip. Large online communities of microdosing enthusiasts have since emerged on sites like Reddit, where dosing tips are shared and the supposed manifold benefits of the practice are espoused.

However, actual scientific investigations into the effects of microdosing can be counted on one hand. Earlier this year, PLOS One published one of the few systematic investigations ever conducted into the practice, by Vince Polito and Richard Stevenson at Macquarie University. Though exploratory and tentative due to “legal and bureaucratic” obstacles (meaning there was no placebo control or randomisation in this research), the results suggest that microdosing can be beneficial, although not in the ways that users most expect, and not necessarily for everyone.

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Educational, Occupational May 16, 2019May 16, 2019

Kids Are More Motivated To “Do Science” Than “Be A Scientist” – A Finding That Could Help Address The Profession’s Diversity Problem

By Matthew Warren

It’s well known that science has a diversity problem, with women and members of minority groups being underrepresented. A new study suggests a solution aimed at children – reframing science as something that people do, rather than something that defines their identity, can reduce the potentially off-putting impact of the “white male” scientist stereotype.

According to the paper, published recently in Developmental Science, thoughtful use of language encourages greater interest in science among young children – and makes them less likely to lose confidence in their scientific abilities as they grow up.

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Methods, Personality May 15, 2019May 15, 2019

An Exciting New Approach To Personality Testing Involves Psychologists Analysing Your Decisions In Game Scenarios

By Christian Jarrett

You’ve been transported deep beneath the earth into a labyrinth of tunnels. You have a sword and a communications device, and your objective is to return to the surface. A figure appears in the dark ahead of you. Do you: (a) Use your communication device to say hello; (b) Formulate a contingency plan for escape and then approach the figure; or (c) Pause a moment to try to read its body language before stepping forward to approach the figure? [to interpret your preference, see end of post]

Personality traits are traits are traditionally assessed by asking people to rate how much various descriptive statements match their own personality, like “I enjoy talking to strangers”. This cheap and easy approach has enjoyed great success – people’s scores on such tests tend to be impressively consistent over time, and they predict important outcomes from health to career success. However, the questionnaires are far from perfect. Research volunteers might not properly engage out of boredom, for instance. Job candidates might deliberately fake their scores to give a favourable impression.

An exciting possibility for overcoming these issues, according to a new paper in Personality and Individual Differences is to use a “gamification” approach – present people with behavioural options in engaging game-like scenarios and deduce their personality traits from their choices.

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Brain, Perception, Time May 14, 2019May 14, 2019

Your Brain Stops Time When You Blink

By Emma Young

You spend about 10 per cent of your waking hours with your eyes shut, simply because of blinking. Every few seconds, each time you blink, your retinas are deprived of visual input for a period lasting anywhere between tens to hundreds of milliseconds (500 milliseconds is equivalent to half a second). You don’t usually notice this, because your brain suppresses the dark spells and stitches together the bursts of visual information seamlessly. But these dips in visual processing in the brain do have an impact: a new study in Psychological Science finds that, in an important way, they cause your sense of the passing of time to stop temporarily.

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biological, guest blogger, Health, Mental health, Therapy May 13, 2019May 13, 2019

There Is Limited Evidence To Support The Widely Held Belief That Psychotherapy Changes The Body As Well As The Mind

By guest blogger Tomasz Witkowski

Looking at the latest epidemiological data, it could be argued that we are in the midst of a pandemic of mental illness, of dimensions never before seen in human history. The WHO estimates that over 350 million people around the world are presently suffering from depression, which constitutes almost 5-6 per cent of the population. At its extreme, depression may lead to suicide, by which it is estimated that around 1 million people die every year. And the numbers continue growing. Faced with this rising tide of illness, it is impossible to overestimate the importance of hard facts and data indicating the paths researchers and clinicians may follow in search of ways to help. Sometimes, as suggested by a meta-analysis of 50 years of studies on indicators that help predict suicide attempts, we are entirely helpless. In other cases, like with the recent meta-analysis of the neural correlates of the changes brought about by psychotherapy in depressed brains, study results do bring us hope.

The results of the first systematic review and meta-analysis of biological markers evaluated in randomized trials of psychological treatments for depression in Neuroscience and Biobehavioral Reviews are another attempt at understanding methods of treating this terrifying illness. The authors – Ioana A. Cristea, Eirini Karyotaki, Steven D. Hollon, Pim Cuijpers and Claudio Gentili – quite rightly point out that understanding how psychological interventions impact or are impacted by biological variables has important implications. For many people, their depression co-occurs with a bodily illness, such as cancer, diabetes, heart disease, and immune system and neurological disorders, and at times is a consequence of that illness. Although we still know little about the reciprocal cause-and-effect mechanisms between psychic and somatic symptoms, some studies have suggested that psychological interventions not only change mood, but also normalise the functioning of the autonomic nervous system, with a therapeutic effect on physical conditions, such as heart disease. But is this really true?

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Mental health May 8, 2019

Exploratory Research Identifies A Novel Way To Beat Anxiety – Zapping The Vestibular System

Screenshot 2019-05-08 at 11.28.05.png — Anxiety scores before and after 38 or 76 mins stimulation of the vestibular system (and before/after “sham” treatment) via Pasquier et al, 2019

By Emma Young

When we think of ways to calm ourselves via our senses, the obvious is to listen to relaxing music, have a massage, or perhaps to gaze upon a rustic scene. However, evidence is growing for a far less obvious option involving the vestibular system (located in the inner ear), which detects the position and movement of the head. According to a recent study, gentle rocking helps adults to fall asleep for a nap, and to sleep more soundly during an entire night, with the researchers who conducted that research hypothesising that the effect is driven by the vestibular system. Now new exploratory work by a different team provides further hints that stimulating the vestibular system can help to calm the brain — in this case, apparently reducing anxiety.

For the new study in Frontiers in Systems Neuroscience, led by Florane Pasquier at the University of Caen Normandy, the 22 healthy young adult participants weren’t physically rocked. Rather, electrodes, placed behind their ears, delivered a very mild, 1mA current to stimulate the nerves that carry signals from the individual components of the vestibular system to the brain. This technique is called galvanic vestibular stimulation (GVS).

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Dating, Developmental, evolutionary psych, Sex May 7, 2019

Researchers Say Growing Up With A Troubled Or Harsh Father Can Influence Women’s Expectations Of Men, And, In Turn, Their Sexual Behaviour

Young girl hugging her father's leg By Emma Young

The power (or powerlessness) of parents to shape their children for good or ill continues to preoccupy psychologists and the public alike. Among evolutionary-minded developmental psychologists, one specific idea is that girls’ later attitudes to relationships is influenced by their fathers’ behaviour. For instance, US research has found that girls with disengaged, harsh, and often absent fathers are known to start having sex at a younger age, and to have more sexual partners. However many questions about these findings remain. For example: might other aspects of the girls’ childhoods be involved; what about genetic effects; and which aspects of poor-quality fathering are the most consequential?

A new study of pairs of sisters, published in Developmental Psychology, provides some specific answers, particularly that it is contact with a poor-quality father, not paternal absence, that affects their daughters’ later relationships, including their expectations of men, and, in turn, their sexual behaviour.

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