The psychology of stalking

girl_hand_on_head_bw.jpgThe ever excellent ABC Radio All in the Mind has a special edition on the psychology of stalking, investigating the drives and motivations of persistent stalkers as well as the impact on their victims.

In order to better understand stalking, Paul Mullen’s group have categorised people who stalk according to what motivates them. There’s the rejected stalker, usually ex-partners trying to reinstate a relationship. The intimacy seeker, who professes love but is oblivious to their victim’s feelings – people who stalk celebrities usually fall into this category and are the most persistent. There’s the incompetent suitor, who lacks the social skills necessary to establish an intimate relationship; the resentful stalker, who’s motivated by anger and a desire for revenge – they can be very frightening but rarely physically violent. And lastly, and thankfully the most rare, is the predatory stalker – they are driven by sadistic pleasure, their stalking is sexual in nature and often leads to attack.

The British Psychological Society magazine The Psychologist published an article on stalking a few years ago (pdf) also examining this intriguing yet disturbing phenomenon.

Link to audio and transcript of AITM on stalking.
pdf of article on stalking from The Psychologist.

On the difficulty of choosing post-neurosurgery words

neurosurgery.jpgThere’s a funny and insightful article in Time Magazine by writer Michael Kinsley on the difficulty of selecting the right words to mark the point when you become conscious after brain surgery.

Kinsley wrote the piece before having surgery to implant a deep brain stimulation device to help alleviate the symptoms of Parkinson’s disease.

To much comic effect, the article discusses his dilemma over choosing something to say to make sure he seems cooly blasé, while not sounding like the surgery has affected his faculties.

Apparently, his surgery went fine but you’ll have to read the end of the article to find out what his first words upon awakening actually were.

Link to Time article ‘Yes, It Really Is Brain Surgery’.

The best and worst on the mind

After attending April’s “Who’s the greatest? Minds that changed our minds” debate, and last night’s “From bad to worse: the worst ideas on the mind” debate – both hosted by the Royal Institution, I thought I’d give a quick summary of the results.

In winning order:

Who’s the greatest
1) Aaron T. Beck inventor of CBT
2) Freud
3) Hans Eysenck
4) Karl Jaspers

Worst ideas on the mind
1) Lobotomy
2) Drug company advertising
3) Post-trauma counselling
4) Freudian theory of hysteria

The memory experience season

BBC_memory_screen_logo.jpgThe BBC kicks off a season on memory in a few days that aims to explore the impact of memory on our everyday lives as well as encouraging people to improve their memory to keep it sharp.

The Memory Experience includes a series of TV programmes, radio programmes and web resources that will also attempt to explain the psychology and neuroscience of memory to viewers and listeners.

You can even test your memory online and take part in a national survey of autobiographical memories of people in the UK.

Link to ‘Memory Experience’ TV website.
Link to ‘Memory Experience’ website with links to radio programmes.

A little more conversation

people_meeting.jpgThe Guardian recently published an article on the effectiveness and concerns about the push to promote cognitive behaviour therapy as a treatment for a wide range of health problems.

Cognitive behaviour therapy is one of the most researched and effective forms of psychotherapy, but there are worries it is nonetheless being oversold as a panacea for things for which there are currently little evidence for its effectiveness.

There is no couch, no “tell me about your childhood/dreams/father”. Barely any mention will be made of her past. Instead, the therapist tries to encourage Katie to rationalise her thoughts now, to see the connection between her feelings and her actions. He tries to recognise unhelpful patterns of behaviour (“I ate a whole loaf of bread, then made myself sick because I felt ugly and fat”) and replace these with more realistic or helpful ones (“I don’t need to binge. I have other ways of controlling my emotions, like calling a friend or going kickboxing). This very practical, proactive approach is rather different from the classic modes of therapy, which one CBT convert describes as “frustratingly fluffy and meaningless” and “encouraging you to feel you are not responsible for your own personal wellbeing”.

But while there are few, if any, mental health specialists prepared to dismiss CBT out of hand, there are a significant number of experts who feel that CBT is being grossly oversold. The primary objection seems to be that it doesn’t work for everybody (not even nearly, say some), and that this one-size-fits-all approach may ride roughshod over more traditional forms of therapy which can be just as – if not more -worthwhile in many cases. A year ago, there was even a debate at the Institute of Psychiatry entitled: “CBT is the New Coca-Cola: This house believes that cognitive behavioural therapy is superficially appealing but overmarketed and has few beneficial ingredients.”

Link to article ‘A little more conversation’.

Treating cluster headaches with LSD and psilocybin

magic_mushrooms.jpgNeurology has an interesting report on the use of low doses of the hallucinogenic drugs LSD and psilocybin to treat cluster headaches.

Cluster headaches are incredibly painful and tend to occur frequently, making them particularly distressing for sufferers.

There were anecdotal reports that LSD and psilocybin (the main active ingredient in ‘magic mushrooms’) helped relieve these headaches and researchers have started to investigate more fully.

The Neurology study interviewed 53 cluster headache patients who had used psilocybin or LSD to treat their condition and found a significant number had their condition improved.

As cluster headaches are associated with the abnormal release of serotonin in the brain, and LSD and psilocybin largely work on the serotonin system, there is some theoretical basis for how the drugs might work.

However, this is a complex and poorly understood area so further controlled trials are now being planned to see whether the improvement is anything more than the placebo effect.

Interestingly, the study thanks drugs information site Erowid, as the site was involved in data collection and recruiting participants.

Research into LSD treatment for headaches was discussed in a recent edition of BBC All in the Mind.

Link to full text of paper.

Blind boy uses echolocation to ‘see’ world

I’m a bit skeptical about this story, but I’m not sure whether it’s just because it’s on AOL’s news service (not known for their cutting edge journalism) or whether it’s because it has a cutesy video of the boy ‘connecting’ with dolphins. If accurate though, it’s quite an amazing talent.

Completely blind since the age of 3, after retinal cancer claimed both his eyes (he now wears two prostheses), Ben has learned to perceive and locate objects by making a steady stream of sounds with his tongue, then listening for the echoes as they bounce off the surfaces around him. About as loud as the snapping of fingers, Ben’s clicks tell him what’s ahead: the echoes they produce can be soft (indicating metals), dense (wood) or sharp (glass). Judging by how loud or faint they are, Ben has learned to gauge distances.

Link to article ‘The Boy Who Sees with Sound’.

Directing dreams with sky orchestras

sky_orchestra.jpgArtist Luke Jerram is working with sleep scientists to create a device that could direct the content of dreams.

Jerram is working with psychologists Drs Chris Alford and Jennie Parker to create and test a machine that uses sound in an effort to shape the individual dreamer’s experience.

It was inspired by Sky Orchestra, another project of Jerram’s that sent an orchestra of hot-air balloons into the sky to play sounds to a sleeping population to affect their dreams on a city-wide scale.

There is a video (wmv) of the ‘orchestra’ in action and it seems a truly beautiful way to be bathed in sound during the twilight of consciousness.

There’s more music from the sky orchestra at this site, so you can try out the effects for yourself.

Link to Dream Director web page.
Link to Sky Orchestra web page.

Speed, Ecstasy, Ritalin

speed_ecstasy_ritalin.jpgWhile wandering through a bookshop the other day I picked up a new book by pharmacologist Professor Leslie Iversen called Speed, Ecstasy, Ritalin: The Science of Amphetamines and have been thoroughly hooked [insert your own joke here] ever since.

It covers the history, chemistry, culture, safety and neuropsychology of a huge range of amphetamines and related compounds.

Included are the common ‘street’ amphetamines like speed and meth, pharmaceutical amphetamines like Ritalin and dexamphetamine, and the substituted amphetamines of the ecstasy family.

Oxford Unversity Press are usually good at putting excerpts of their books online (usually the introduction or first chapter) but sadly, there doesn’t seem to be anything similar online for this publication (OUP if you’re listening, now’s the time!)

You won’t find a more comprehensive guide to these fascinating drugs, and the book has the advantage of being written at a engaging pace without skipping over any of the in-depth science. It is not intended to be a ‘popular science’ book but is much more accessible than the majority of academic texts, even for non-specialists.

Even today, over-the-counter inhalers containing amphetamine-like drugs are still available as decongestants, although the compounds now used are ones that act solely on the norepinephrine system in the peripheral sympathetic nervous system and are devoid of psychostimulant properties or abuse potential.

A little known fact is that the popular ‘Vick inhaler’ contains 50mg of methamphetamine (described on the label by the synonym deoxyephedrine) in free base oil form; however, it is not the psychoactive D-isomer of the drug but L-methamphetamine [or levmetamfetamine], which has no psychostimulant properties but retains some sympathomimetic activity. Innocent users of the Vick inhaler to treat the symptoms of the common cold can get into trouble with the law if subjected to a drugs test, as this will indicate the presence of methamphetamine unless the test is sufficiently sophisticated to tell the difference between the L- and D-isomers of the drug! [p31]

Link to details of book Speed, Ecstasy, Ritalin.

Why do we dream?

in_my_dreams.jpgThere’s a short article from this month’s Scientific American available online where sleep specialist Professor Ernest Hartmann attempts to answer the question “Why do we dream?”.

Hartmann is a psychiatrist and the director of the Sleep Disorders Center at Newton Wellesley Hospital in Boston, but notes that the exact function of dreaming is still largely a mystery, but summarises his recent popular scientific theory of its purpose.

Therefore I will try to explain a current view of dreaming and its possible functions, developed by myself and many collaborators, which we call the Contemporary Theory of Dreaming. The basic idea is as follows: activation patterns are shifting and connections are being made and unmade constantly in our brains, forming the physical basis for our minds. There is a whole continuum in the making of connections that we subsequently experience as mental functioning. At one end of the continuum is focused waking activity, such as when we are doing an arithmetic problem or chasing down a fly ball in the outfield. Here our mental functioning is focused, linear and well-bounded. When we move from focused waking to looser waking thought–reverie, daydreaming and finally dreaming–mental activity becomes less focused, looser, more global and more imagistic. Dreaming is the far end of this continuum: the state in which we make connections most loosely.

Link to Scientific American article ‘Why do we dream?’.

Switching, lapsing and gaming

nintendo_64_controller.jpgThere’s been a series of particularly good articles over at cognitive science blog Developing Intelligence recently – analysing everything from the cognitive neuroscience of task switching to evidence that video games might improve brain function.

Another particularly helpful article has been a comprehensive round-up of commentary on Paul Bloom’s article for Seed Magazine that argued that data from fMRI experiments are given undue weight and attention by both scientists and the media alike.

Link to Developing Intelligence.

Are you a miserable ovoid creature?

progenitorivox_ad.jpgOmni Brain has found an hilarious spoof drug advert in the form of a marketing campaign for the fictional medication Proloxil.

Spoofing drugs and drug companies has now become a minor pastime on the internet, with a number of cutting satires available online.

The Onion has a brilliant news story ‘reporting’ on the launch of a new ‘Zoloft for everything’ ad campaign.

The Consumers Union produced a fantastically amusing video advert last year for the fake drug Progenitorivox, as part of their campaign to get drug companies to release all the data from their trials.

And who could possible resist wonder-drugs Panexa and Fukitol as a solution to your life problems?

How common is autism?

jason_mcelwin_image.jpgResearch has been published in today’s Lancet on the prevalence of autism spectrum disorders (ASDs) in the population of UK children, suggesting that these disorders are more common than previously thought.

The paper reported that the prevalence of ASDs in the population is 116¬∑1 per 10,000 of the population – meaning just over 1% of the population are likely to qualify for one of these diagnoses.

“One of these diagnoses” is the crucial phrase here, as Baird and colleagues were not looking just for ‘classic’ or ‘narrowly defined’ autism (diagnosed as childhood autism in the ICD-10), but at the whole of the autism spectrum disorders – also known as pervasive developmental disorders.

BBC News has a good write-up on the study including a crucial quote from the Lancet article’s main author Professor Gillian Baird:

Whether the increase is due to better ascertainment, broadening diagnostic criteria, or increased incidence is unclear.

In fact, the reported prevalence of the narrow form of autism was only 38.9 in 10,000 of the population, less than 0.4%.

In contrast, autism spectrum or pervasive developmental disorders have a much broader scope, and can include both a 10 year-old child with no language, severe learning disabilities, lack of social interest and restricted interests (‘narrow’ autism) to a bright articulate 10 year-old child who is socially awkward and bit inflexible in his thinking.

This is largely because of fairly recently included diagnoses such as ‘Asperger syndrome’, ‘Pervasive Developmental Disorder – Not Otherwise Specificed’ (PDD-NOS) and ‘Atypical Autism’ which, particularly for the latter two, have much wider criteria.

Although Baird and colleagues used systematic methods for making their diagnoses, it’s interesting that there’s quite a pressure on everyday clinicians to make these sort of diagnoses for children who are having emotional or behavioural problems.

Having one of these diagnoses entitles children to special educational support or even a place in an expensive yet well-supported special school in many areas of the UK.

Who wouldn’t want special support for their child who is doing badly in education and is constantly distressed by school life? This in turn puts pressure on local clinicians, and on the medical establishment, to recognise these difficulties by widening the diagnostic criteria.

I sometimes smile to myself when I see news stories about science and medicine being out of touch with society, since the history of medicine suggests that there is an intimate connection between medical decisions and social needs.

Link to abstract of Lancet study on ASD prevalence.
Link to BBC News story on research.

2006-07-14 Spike activity

Quick links from the past week in mind and brain news:

spike.jpg

Washington Post discusses the prejudices associated with elderly mental illness.

The neuroscience of playing chicken is analysed on Mixing Memory.

Time Magazine has an in-depth article on the ‘New Science of Siblings‘ looking at the genetic influences on thought and behaviour.

Neurophilosophy blog discusses a potential new blood test for prion diseases like vCJD and mad cow disease.

Deric Bownds’ Biology of Mind Blog hits full stride.

There’s a wonderful article on ‘What a synapse does when it’s not doing anything‘ on Gene Expression.

Magic mushrooms cause profound spiritual experiences. Pope still catholic.

Free will, criminal acts and brain tumours: The Times discusses cases where neuropathology seems to have led directly to criminal behaviour.

Science News analyses the ‘neglected’ impact of ADHD in girls.

Research suggests early brain scans may predict later Alzheimer’s disease.