from Section I - Neurology, Neurophysiology and Neuropsychology: Olfactory Clues to Brain Development and Disorder
Published online by Cambridge University Press: 17 August 2009
The utility of olfactory probes for understanding disorders involving orbitofrontal compromise has been outlined in Chapter 6. In this chapter, we discuss how such investigations may also be applied to addiction, where current neurobiological models implicate dysfunction within the orbitofrontal cortex (OFC) as a core underlying feature (Lubman et al., 2004). Hence, the focus of the chapter is not on olfaction per se, but more broadly upon compromise of OFC structure and function. The aim is to model one example of how olfactory testing could be applied to investigations of OFC function and related behavioural outcomes. Specifically, we discuss how abnormalities within the OFC and associated limbic pathways may perpetuate substance use disorders (SUD), as well as having a potential causal role in the development of SUD in at-risk youth. The utility of olfaction in mapping adolescent prefrontal development is also described, with particular reference to impulse control, disinhibition, compulsion and other aspects of decision-making that are mediated by orbitofrontal processes.
Drug use in young people
Adolescence is a period of significant change, encompassing the transition from total dependence on parents to relative independence. To navigate this journey successfully, the young person must develop a number of core skills necessary for adulthood, as well as negotiate a series of emotional and social hurdles. Whilst several characteristic adolescent behaviours (such as increased risk-taking, novelty-seeking and peer-directed social interactions) are frequently blamed on modern youth culture, researchers now recognise that these behaviours are also prominent in other adolescent mammals.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.