Melanie Porter

Prof. Dr. Melanie Porter

orcid

Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2012 in Journal of Affective Disorders
Verified
Journal Article
Closed access
RLRico S.C. Lee
Rico S.C. Lee
Daniel F. HermensDaniel F. Hermens
Daniel F. Hermens
MPMelanie Porter
Melanie Porter
MRM. Antoinette Redoblado-Hodge
M. Antoinette Redoblado-Hodge

1 January 2007 in Neuropsychologia
Verified
Journal Article
Closed access
MPMelanie Porter
Melanie Porter
MCMax Coltheart
Max Coltheart
RLRobyn Langdon
Robyn Langdon

1 October 2014 in Journal of Psychiatric Research
Verified
Journal Article
Closed access
RLRico S.C. Lee
Rico S.C. Lee
Daniel F. HermensDaniel F. Hermens
Daniel F. Hermens
JSJan Scott
Jan Scott
MRM. Antoinette Redoblado-Hodge
M. Antoinette Redoblado-Hodge
SNSharon L. Naismith
Sharon L. Naismith
IHIan B. Hickie
Ian B. Hickie

1 March 2013 in PLOS ONE
Verified
Journal Article
Open access
PDF file
RLRico S C Lee
Rico S C Lee
Daniel F. HermensDaniel F. Hermens
Daniel F. Hermens
MRM Antoinette Redoblado-Hodge
M Antoinette Redoblado-Hodge
SNSharon L Naismith
Sharon L Naismith
MPMelanie Porter
Melanie Porter
IHIan B Hickie
Ian B Hickie
Clinical symptoms and neuropsychological deficits are longitudinally associated with functional outcome in chronic psychiatric cohorts. The current study extended these findings to young and early-course psychiatric outpatients, with the aim of identifying cognitive markers that predict later socio-occupational functioning. At baseline, 183 young psychiatric outpatients were assessed. Ninety-three returned for follow-up (M = 21.6 years old; SD = 4.5) with an average re-assessment interval of 21.6 months (SD = 7.0), and primary diagnoses of major depressive disorder (n = 34), bipolar disorder (n = 29), or psychosis (n = 30). The primary outcome measure was cross-validated with various other functional measures and structural equation modelling was used to map out the interrelationships between predictors and later functional outcome. Good socio-occupational functioning at follow-up was associated with better quality of life, less disability, current employment and being in a romantic relationship. The final structural equation model explained 47.5% of the variability in functional outcome at follow-up, with baseline neuropsychological functioning (a composite of memory, working memory and attentional switching) the best independent predictor of later functional outcome. Notably, depressive and negative symptoms were only associated with functioning cross-sectionally. Diagnosis at follow-up was not associated with functional outcome. Neuropsychological functioning was the single best predictor of later socio-occupational outcome among young psychiatric outpatients. Therefore, framing psychiatric disorders along a neuropsychological continuum is likely to be more useful in predicting functional trajectory than traditional symptom-based classification systems. The current findings also have implications for early intervention utilising cognitive remediation approaches.

1 April 2005 in Developmental Neuropsychology
Verified
Journal Article
Closed access
MPMelanie Porter
Melanie Porter
MCMax Coltheart
Max Coltheart
This study used the Woodcock-Johnson Tests of Cognitive Ability-Revised to investigate a wide range of cognitive abilities in people with Williams syndrome (WS). It involved a comparatively large sample of 31 people with WS, but took a case-series approach. The study addressed the widespread claims of a characteristic "WS cognitive profile" by looking for heterogeneity rather than homogeneity. People with WS showed a variety of preserved (significantly above mental age [MA]), expected (at MA), and significantly impaired (significantly below MA) levels of functioning. Such results provide clear evidence for heterogeneity in cognitive functions within WS. We found the most homogeneity on a test of phonological processing and a test of phonological short-term memory, with half of the WS sample performing at MA levels on these tests. Interestingly, no WS individual showed a weakness on a test of nonverbal reasoning, and only one WS individual showed a weakness on a test of verbal comprehension. In addition, w...

14 December 2012 in Psychological Medicine
Verified
Journal Article
Open access
PDF file
RLR. S. C. Lee
R. S. C. Lee
MRM. A. Redoblado-Hodge
M. A. Redoblado-Hodge
SNS. L. Naismith
S. L. Naismith
Daniel F. HermensDaniel F. Hermens
Daniel F. Hermens
MPMelanie Porter
Melanie Porter
IHI. B. Hickie
I. B. Hickie
Background: Cognitive remediation (CR) is an effective treatment for several psychiatric disorders. To date, there have been no published studies examining solely first-episode psychiatric cohorts, despite the merits demonstrated by early intervention CR studies. The current study aimed to assess the effectiveness of CR in patients with a first-episode of either major depression or psychosis.Method: Fifty-five patients (mean age = 22.8 years, s.d. = 4.3) were randomly assigned to either CR (n = 28) or treatment as usual (TAU; n = 27). CR involved once-weekly 2-h sessions for a total of 10 weeks. Patients were comprehensively assessed before and after treatment. Thirty-six patients completed the study, and analyses were conducted using an intent-to-treat (ITT) approach with all available data.Results: In comparison to TAU, CR was associated with improved immediate learning and memory controlling for diagnosis and baseline differences. Similarly, CR patients demonstrated greater improvements than TAU patients in psychosocial functioning irrespective of diagnosis. Delayed learning and memory improvements mediated the effect of treatment on psychosocial functioning at a marginal level.Conclusions: CR improves memory and psychosocial outcome in first-episode psychiatric out-patients for both depression and psychosis. Memory potentially mediated the functional gains observed. Future studies need to build on the current findings in larger samples using blinded allocation and should incorporate longitudinal follow-up and assessment of potential moderators (e.g. social cognition, self-efficacy) to examine sustainability and the precise mechanisms of CR effects respectively.