Evidence map›Paper›PMID 27369066›Full record

ArticleSocial cognitive and affective neuroscience2016

Amygdala functional connectivity as a longitudinal biomarker of symptom changes in generalized anxiety.

Elena Makovac, David R Watson, Frances Meeten, Sarah N Garfinkel, Mara Cercignani, Hugo D Critchley, Cristina Ottaviani

Abstract read
In one paragraph

Article in Social cognitive and affective neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Elena MakovacNeuroimaging Laboratory, IRCCS Santa Lucia Foundation, Rome, Italy.
David R WatsonPsychiatry, Division of Medicine, Brighton and Sussex Medical School, Brighton, UK.
Frances MeetenPsychiatry, Division of Medicine, Brighton and Sussex Medical School, Brighton, UK.
Sarah N GarfinkelPsychiatry, Division of Medicine, Brighton and Sussex Medical School, Brighton, UK.
Mara CercignaniPsychiatry, Division of Medicine, Brighton and Sussex Medical School, Brighton, UK.
Hugo D CritchleyPsychiatry, Division of Medicine, Brighton and Sussex Medical School, Brighton, UK.
Cristina OttavianiNeuroimaging Laboratory, IRCCS Santa Lucia Foundation, Rome, Italy cristina.ottaviani@uniroma1.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Generalized anxiety disorder (GAD) is characterized by excessive worry, autonomic dysregulation and functional amygdala dysconnectivity, yet these illness markers have rarely been considered together, nor their interrelationship tested longitudinally. We hypothesized that an individual's capacity for emotion regulation predicts longer-term changes in amygdala functional connectivity, supporting the modification of GAD core symptoms. Sixteen patients with GAD (14 women) and individually matched controls were studied at two time points separated by 1 year. Resting-state fMRI data and concurrent measurement of vagally mediated heart rate variability were obtained before and after the induction of perseverative cognition. A greater rise in levels of worry following the induction predicted a stronger reduction in connectivity between right amygdala and ventromedial prefrontal cortex, and enhanced coupling between left amygdala and ventral tegmental area at follow-up. Similarly, amplified physiological responses to the induction predicted increased connectivity between right amygdala and thalamus. Longitudinal shifts in a distinct set of functional connectivity scores were associated with concomitant changes in GAD symptomatology over the course of the year. Results highlight the prognostic value of indices of emotional dysregulation and emphasize the integral role of the amygdala as a critical hub in functional neural circuitry underlying the progression of GAD symptomatology.

Indexed as

AdultAmygdalaAnxiety DisordersArousalAutonomic Nervous SystemDisease ProgressionDominance, CerebralEmotionsFemaleHumansLongitudinal StudiesMagnetic Resonance ImagingMaleNerve NetPrefrontal CortexYoung Adultamygdala functional connectivityemotion regulationgeneralized anxiety disorderheart rate variabilitylongitudinalperseverative cognition

Identifiers

PMID27369066
PMCPMC5091683

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.