Achala H. Rodrigo

Achala H. Rodrigo
St. Joseph's Healthcare Hamilton | SJHH

Doctor of Philosophy

About

22
Publications
7,399
Reads
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284
Citations
Education
September 2016 - August 2020
University of Toronto
Field of study
  • Clinical Psychology
September 2013 - August 2015
University of Toronto
Field of study
  • Clinical Psychology
September 2012 - August 2013
University of Toronto
Field of study
  • Psychology

Publications

Publications (22)
Article
The medial prefrontal cortex (MPFC) plays an important role in representing semantic self-knowledge. Studies comparing semantic self-judgments with judgments of close others suggest that interpersonal closeness may influence the degree to which the MPFC differentiates self and other. We used optical neuroimaging to examine if support for competence...
Article
Adaptive interpersonal functioning relies on the effectiveness of behavioral and neural systems involved in cognitive control. Whether different subcomponents of cognitive control and their neural representations are associated with distinctive interpersonal dispositions has yet to be determined. The present study investigated the relationships bet...
Article
Emotion perception biases may precipitate problematic interpersonal interactions in families affected with borderline personality disorder (BPD) and lead to conflictual relationships. In the present study, the authors investigated the familial aggregation of facial emotion recognition biases for neutral, happy, sad, fearful, and angry expressions i...
Article
Understanding of the biological factors that run in families affected with borderline personality disorder (BPD) is limited. The authors investigated the familial aggregation of neurophysiological biomarkers of response inhibition in the first-degree biological relatives of probands with BPD and associations with psychiatric diagnosis and impulsive...
Article
Full-text available
Purpose of Review We discuss the implications of the Research Domain Criteria (RDoC) initiative for neuroscience research on personality disorder (PD). To organize our review, we construct a preliminary conceptual mapping of PD symptom criteria onto RDoC constructs. We then highlight recent neuroscience research, often built around concepts that co...
Chapter
Full-text available
Social neuroscience involves the use of neuroscience methods to study how the thoughts, feelings, and behavior of individuals are influenced by the actual, imagined, or implied presence of others. Progress in social neuroscience depends upon the advancement of methods that enable researchers to examine the neural and broader biological bases of soc...
Article
Full-text available
Background Borderline personality disorder (BPD) is characterized by a heterogeneous clinical phenotype that emerges from interactions among genetic, biological, neurodevelopmental, and psychosocial factors. In the present family study, we evaluated the familial aggregation of key clinical, personality, and neurodevelopmental phenotypes in probands...
Article
Full-text available
Individuals with borderline personality disorder (BPD) report using cognitive reappraisal less often than healthy individuals despite the long-term benefits of the emotion regulation strategy on emotional stability. Individuals with BPD, mixed anxiety and/or depressive disorders (MAD), and healthy controls (HC) completed an experimental task to inv...
Article
AbstractPeople?s abilities to integrate temporally distant identities are known to be facilitated by the fulfillment of basic psychological needs. However, the neural systems that support the integrative functions of need fulfillment are not well understood. Neuroimaging studies indicate that the medial prefrontal cortex (MPFC) differentiates remem...
Article
People’s abilities to integrate temporally distant identities are known to be facilitated by the fulfillment of basic psychological needs. However, the neural systems that support the integrative functions of need fulfillment are not well understood. Neuroimaging studies indicate that the medial prefrontal cortex (MPFC) differentiates remembered pa...
Conference Paper
Full-text available
Previous neuroimaging research has implicated the prefrontal cortex (PFC) as a region of the brain that is vital for various aspects of emotion processing. The present study sought to examine the neural correlates of incidental facial emotion encoding, with regard to neutral and fearful faces, within the PFC. Thirty-nine healthy adults were present...
Article
Full-text available
Self-harm is a potentially lethal symptom of borderline personality disorder (BPD) that often improves with dialectical behavior therapy (DBT). While DBT is effective for reducing self-harm in many patients with BPD, a small but significant number of patients either does not improve in treatment or ends treatment prematurely. Accordingly, it is cru...
Article
Full-text available
Objective: The tryptophan hydroxylase 1 gene (TPH1) catalyzes the formation of 5-hydroxytryptophan, a precursor to the neurotransmitter serotonin. Variations in the gene encoding this enzyme may underlie difficulties in impulse control; however, the proximate relationship between risk alleles for polymorphisms in the TPH1 gene and the neural corre...
Article
Full-text available
Mindfulness has been associated with enhanced performance monitoring, however, little is known about the processes driving this apparent neurocognitive benefit. Here, we tested if focusing present-moment awareness towards the non-judgmental experience of emotion facilitates the rapid neural responses to negative performance outcomes (i.e., mistakes...
Article
Full-text available
Inhibitory control is subserved in part by discrete regions of the prefrontal cortex whose functionality may be altered according to specific trait-based phenotypes. Using a unified model of normal-range personality traits, we examined activation within lateral and medial aspects of the prefrontal cortex during a manual go/no-go task. Evoked hemody...
Article
Full-text available
Problem-solving is an executive function subserved by a network of neural structures of which the dorsolateral prefrontal cortex (DLPFC) is central. Whereas several studies have evaluated the role of the DLPFC in problem-solving, few standardized tasks have been developed specifically for use with functional neuroimaging. The current study adapted...

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