The evolutionary secrets of garden flowers described at Birkbeck’s Science Week

This post was contributed by Tony Boniface a member of the University of the Third Age.

Science Week logo

Science Week logo

On 3 July, Dr Martin Ingrouille, of Birkbeck’s Department of Biological Sciences, began his talk by pointing out that Darwin had studied plants for 40 years and had published books on pollination. However, Darwin knew nothing of genes and chromosomes and could not explain the rapid origin of flowering plants in the Cretaceous period.

Dr Ingrouille continued by emphasising that garden plants are sterile and exotic plants without their natural pollinators. They have been selected for showiness, many being artificial hybrids. He referred to Goethe, who stressed the essential unity of floral parts, which have all evolved from leaves.

Dr Ingrouille explained how genetic control, in its simplest form, consists of three classes of genes: A, B and C. Class A genes control sepals and petals, class B genes control petals and stamens, and class C genes control stamens and carpels. Mutations of these genes result in parts being converted into others.

Floral evolution in plants could have been the result of duplication of basic genes allowing one to perform its normal function while the other could give rise to a novel structure or function. New plant species have often arisen by chromosome doubling in a sterile hybrid as seen in the formation of Primula kewensis.

Dr Ingrouille then explained how much insight into plant evolution arose from the work of John Gerard (gardener to William Cecil), John Ray (author of the first modern text book of botany) and the Jussieus family (three generations of gardeners to the king of France). These people put plants into groups that were the first natural classification of the angiosperms.

Now DNA sequencing has resulted in a detailed understanding of the phylogeny or evolutionary history of these plants in which many of the families have survived such as the umbellifers and legumes but some such as the figwort family have been split. The result was the arrangement of the plants into two main groups namely the Eudicots, with three  grooves on their pollen grains, and the Basal Angiosperms, with only one groove. Within the Eudicots are the Core Eudicots including the Rosids and the Asterids whilst the Monocots are within the Basal Angiosperms. The first ancestor was Amborella trichopoda, a weedy shrub from New Caledonia in the Pacific – a place Dr Ingrouille hopes to visit on his retirement.

Dr Ingrouille finished  by urging his audience – all members of the University of the Third Age (a movement for retired and semi-retired people to come together and learn together) – to examine their garden plants in detail to look for the variations, which suggest their origins.

Exploring the hidden complexities of routine behaviour at Birkbeck’s Science Week

This post was contributed by Guy Collender, Communications Manager, Birkbeck’s Department of External Relations.

Dr Richard Cooper

Dr Richard Cooper at Birkbeck’s Science Week

How often do you forget to attach the relevant document when you are sending emails? When was the last time you accidentally put the coffee in the fridge instead of the milk? Or, more alarmingly, when did you last leave the nozzle of the petrol pump in your car when you drove off from the petrol station? (Yes, believe it or not, there is ample photographic evidence to prove the last point).

Such errors, made during routine tasks, were the centre of attention at a fascinating lecture, entitled The hidden complexities of routine behaviour, during Birkbeck’s Science Week. Dr Richard Cooper explained why it is important to understand routine behaviour, why mistakes are made during everyday tasks, and the implications for the rehabilitation of brain-damaged patients.

Benefits of routine behaviour
The presentation on 3 July began with a description of routine behaviour and its advantages. Dr Cooper, of Birkbeck’s Department of Psychological Sciences, defined routine tasks, such as dressing, grooming, preparing meals, and cleaning, as frequently performed tasks carried out in a stable and predictable environment. By automatically performing various stages in a routine task, people do not have to plan every action on a moment-by-moment basis. This, as Dr Cooper showed, saves the mental exertion associated with constant planning, and enables the brain to think about other things when performing routine tasks.

Difficulties associated with routine tasks
However, routine tasks are prone to error, especially following an interruption, and these mistakes may have “catastrophic consequences”, including vehicle collisions and industrial accidents. Dr Cooper said: “Routine behaviour is not something we can take for granted.”

The lecture continued with a list of different types of errors made while performing routine tasks. These include omission errors (leaving out a vital task), perseverative errors (repeating an action even though the goal has been achieved), and substitution errors (mixing up objects).

Dr Cooper showed how people with brain injuries are much more prone to making these mistakes. He said: “Neurological patients can have a much more difficult time.” They can suffer from a range of problems, including anarchic hand syndrome (where one hand performs involuntary movements), frontal apraxia (which leads to patients making sequential errors and substitution errors on a minute-by-minute basis), or ideational apraxia (which leads to the right action, but wrong place – such as trying to light the wrong end of a candle).

Devising solutions
Dr Cooper also referred to studies of brain-damaged patients in rehabilitation clinics and their performance of routine tasks in a controlled environment. He said: “Re-learning must focus on rote learning of the precise procedure, with no variation. Home environments should be designed to minimise distractions.”

Dr Cooper also hinted at future developments in this field as smart devices might be able to monitor the performance of routine tasks for certain errors. Hopefully the latest technology will be able to help reduce everyday problems in the years ahead.

Mindfulness Meditation Training

This post was contributed by Lucia Magis-Weinberg, who is doing her PhD under the supervision of Dr Dumontheil and Dr Custers, investigating how motivation impacts adolescents’ executive functions (which include self-regulation and attention). Learn more about Dr Dumontheils’ research. Follow us on Twitter @idumontheil and @luciamawe

PsychologyInhale. Exhale. Focus your attention on the present moment. Mindfulness meditation (MM) is a type of awareness that involves focusing on moment to moment experiences in a non-judgmental and non-reactive way. MM was adopted from the Buddhist tradition, and was originally implemented in Western medicine for the treatment of chronic intractable pain. In adults, it has been shown to improve people’s ability to manage attention, regulate emotion, well-being, and ameliorate anxiety and depression. It even boosts immune function. But can these benefits be extended to other age groups?

This was discussed as part of the Birkbeck Science Week by Dr Iroise Dumontheil from the Department of Psychological Sciences, who talked about her ongoing research on the effects of mindfulness meditation training (MMT) in adolescence. The teenage years are characterised by continued improvements in self-regulation, the ability to exert voluntary control on thought, emotion and action. A deficit in self-regulation results in impaired impulse control and increased sensation seeking and risk taking. Furthermore, adolescents can struggle with the regulation of emotions. Failures in self-regulation can have a bigger impact in decisions and behaviour in the teenage years than later in life, as is evident by the alarmingly high rates of death by accidents and violence, two preventable issues, in the second decade of life. Around 75% of mental disorders have an onset before the age of 24. All of these issues could benefit from enhancing the ability of adolescents to self-regulate. Can MMT be one of the ways? Dr Dumontheil’s ongoing research, conducted in collaboration with UCL and the University of Minnesota, is starting to address this question and is motivated by the impact that interventions could have on adolescent well-being.

There is some initial promise from early research in the adolescent population. It has been shown that MMT is feasible in adolescence, particularly because it could be done in schools. MMT seems to benefit performance in tasks that involve a negative emotional component (being less distracted by angry faces, for example). Additionally, there is evidence that anxiety is decreased. The positive effects of MMT on increased attentional control are similar to those seen previously in adult studies.

Currently, Dr Dumontheil is looking at changes in brain function in response to an 8-week MMT with fMRI, a neuroimaging technique. In adults, it has been shown previously that MMT reinforces self- regulation by targeting the ability to control thought and action (associated with increased activity in the prefrontal regions of the brain) and lessening the influence of anxiety, stress and immediate reactivity (associated with decreased activity in the amygdala). Preliminary data from Dr Dumontheil’s research show changes in the brain regions that control attention.

As was noted by attendees of the lecture, there are very interesting questions yet to be explored, such as gender differences in the response to MMT and whether variants of the standard MMT may be more successful in adolescents and children. While research in psychology and neuroscience shed light on this interesting phenomenon, let’s reorient our attention to our present moment for now. Inhale. Exhale.

Guided tour of the William Morris Gallery and discussion with local east London arts organisations (East London in Flux IV)

Session 3. Wednesday 18 June, 6pm-9pm

This post was contributed by Nick Edwards, an Architectural Educator and Co-founder of Fundamental Architectural Inclusion

Morris_Strawberry_Thief_1883_detail

Strawberry Thief printed textile designed by William Morris. (Identification from Linda Parry, William Morris Textiles, New York, Viking Press, 1983, p155)

After an informative guided tour of the William Morris Gallery we retired to the tea room for refreshments and some great conversations around a very loose topic: “What would William Morris and the Arts and Crafts movement – with their commitment to social change via art, have made of the rapidly changing East London and its current wave of arts-led regeneration projects?”.

Group discussions covered East London’s rapid regeneration and how the arts and artists seem to be – perhaps rather unwittingly – part of the process of change. We talked about all sorts of issues and ideas, including the sudden new wave of Open Workshops in East London and how these seem to be funded by through regeneration such as the Mayor of London’s Outer London Fund, London Legacy Development Corporation and sometimes even developers.

Black Horse Work Shop in Walthmanstow

Black Horse Work Shop in Walthmanstow

We also debated the long-term phenomenon of the gradual drift Eastwards of artists, often to run-down short-term studio spaces in ex-industrial areas and now out into much wider surrounding neighbourhoods. Grayson Perry rather succinctly captured this pioneering in his R4 Reith Lecture “If you think of artists, we’re like the shock troops of gentrification…“ going on to say that he thought developers should pay artists to do their work for them!

The participants, a broad range of local people and representatives from arts organisations and the Gallery, threw these issues around the houses and gallery so to speak, ending up with the scourge of house prices again which seems to be a recurring theme at our sessions! There was a bit of a sense that although regeneration and beautification of areas can be beneficial, it also pushes prices up and out of the reach of many people who live and work in East London and that this has a knock on effect on older children becoming independent and on the wider community as a whole. Some people also felt that some of the new creative spaces were far too expensive and not really aimed at local people.

Having drawn somewhat of a blank with these big issues and as to whether there is a present day William Morris we all tried hard to think of solutions and good examples of arts and regeneration projects that had somehow overcome these economic and top down sometimes prescriptive pressures. Were there any examples where the ideas had genuinely come from within the community?

A few of the participants, including Anna Mason and Ines Pina from the Gallery had been to the Mill and spoke very highly of its community-led ethos. Perhaps this type of model is the way forward? Unfortunately Mo Gallaccio from the Mill was unable to join us but we look forward to visiting and learning more about this model in the future. Another very effective grass-roots initiative is Up Your Street, which has the simple but ambitious goal of getting local people out to all the free events offered across the Olympic boroughs. We have Up Your Street to thank for steering many long-term East London residents to our East London in Flux events, where they have made invaluable contributions to our discussions and debates.

East London In Flux is a partnership between Fundamental Architectural Inclusion and Birkbeck.

Further events in the East London in Flux series will be taking place throughout the summer. Tickets are free but places are limited so if you are interested in attending please reserve you place here.

The following are links to some of the other projects we considered  during our discussion: