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Mar 09, 2006

The power of simulation: Imagining one's own and other's behavior

The power of simulation: Imagining one's own and other's behavior 

Brain Res. 2006 Feb 3

Decety J, Grezes J.

A large number of cognitive neuroscience studies point to the similarities in the neural circuits activated during the generation, imagination, as well as observation of one's own and other's behavior. Such findings support the shared representations account of social cognition, which is suggested to provide the basic mechanism for social interaction. Mental simulation may also be a representational tool to understand the self and others. However, successfully navigating these shared representations - both within oneself and between individuals - constitutes an essential functional property of any autonomous agent. It will be argued that self-awareness and agency, mediated by the temporoparietal (TPJ) area and the prefrontal cortex, are critical aspects of the social mind. Thus, differences as well as similarities between self-- and other representations at the neural level may be related to the degrees of self-awareness and agency. Overall, these data support the view that social cognition draws on both domain-general mechanisms and domain-specific embodied representations.

How psychotherapy changes the brain

How psychotherapy changes the brain - the contribution of functional neuroimaging.

Mol Psychiatry. 2006 Mar 7;

Authors: Linden DE

A thorough investigation of the neural effects of psychotherapy is needed in order to provide a neurobiological foundation for widely used treatment protocols. This paper reviews functional neuroimaging studies on psychotherapy effects and their methodological background, including the development of symptom provocation techniques. Studies of cognitive behavioural therapy (CBT) effects in obsessive-compulsive disorder (OCD) were consistent in showing decreased metabolism in the right caudate nucleus. Cognitive behavioural therapy in phobia resulted in decreased activity in limbic and paralimbic areas. Interestingly, similar effects were observed after successful intervention with selective serotonin reuptake inhibitors (SSRI) in both diseases, indicating commonalities in the biological mechanisms of psycho- and pharmacotherapy. These findings are discussed in the context of current neurobiological models of anxiety disorders. Findings in depression, where both decreases and increases in prefrontal metabolism after treatment and considerable differences between pharmacological and psychological interventions were reported, seem still too heterogeneous to allow for an integrative account, but point to important differences between the mechanisms through which these interventions attain their clinical effects. Further studies with larger patient numbers, use of standardised imaging protocols across studies, and ideally integration with molecular imaging are needed to clarify the remaining contradictions. This effort is worthwhile because functional imaging can then be potentially used to monitor treatment effects and aid in the choice of the optimal therapy. Finally, recent advances in the functional imaging of hypnosis and the application of neurofeedback are evaluated for their potential use in the development of psychotherapy protocols that use the direct modulation of brain activity as a way of improving symptoms.

A PhD in Touch

Via Pasta and Vinegar 

A PhD position is available at the Oslo School of Architecture and Design for the Touch Project:

Radio Frequency IDentification is a wireless technology that is is currently finding applications in the replacement of barcodes in supply chains and logistics. This cheap and potentially ubiquitous technology is likely to influence the interactions we have with many products and services. The Touch project therefore looks at user-centred applications of the technology. A PhD is now available as part of the project.

Touch is interested in developing user-centred applications and services: assessing ways in which the technology might be used in everyday life in useful, fun and non-invasive ways. The growing integration of RFID readers in mobile phones enables simple interactions between phones and physical objects with a ‘swipe’ or ‘touch’. In Japan there are around 10 million people paying for tickets and other services with ‘wallet phones’ and near field communication. These applications in ticketing and retail are the first areas to emerge as mass-market uses.

An initial exploratory period will develop specific research questions and application areas. Touch will look closely at social practices around mobile use and RFID. How does the increasing digitalisation of physical objects affect identity, culture, play, and issues of social transformation. Are there areas of everyday physical activity that would benefit from network intervention? Are there networked, online activities that could be supported by interactions with the physical?

The project will develop a number of practical investigations of the relationship between the digital and the physical. In particular looking at shifts in advertising or marketing, retail activity, public and civic services, gaming or play, and issues around personal, social and communicative uses. Through the design of digital and physical artefacts, applications and prototypes, the project will build a body of knowledge around near field interactions.

The PhD will work on specific themes within the project. This will require self-initiated research, as well as collaborative development with other designers, an anthropologist, software developers, the mobile industry and user groups. Applicants should have a design background and be able to demonstrate knowledge of social, tangible or mobile interaction design. Applicants are encouraged to submit a diversity of themes and approaches within these areas.

The fellowship is provided by Institute of Design, AHO, Oslo, Norway, and has a duration of 3 years, starting date early to mid 2006. The yearly salary amounts to NOK 292.000.

Deadline for applications: Postmarked no later than 22 March 2006.

Applications should be sent to:
Attn: Timo Arnall / Interaction Design
Oslo School of Architecture and Design
Maridalsveien 29
0175 Oslo
Norway