Treatment of resistant depression : a pilot study assessing the efficacy of a tDCS-mindfulness program compared with a tDCS-relaxation program

Background: This pilot study explores a therapeutic setting combining transcranial direct current stimulation (tDCS) and mindfulness-based cognitive therapy (MBCT) for patients with drug-resistant depression. tDCS has shown efficacy for depression treatment and improvement could be maintained with the combination with mindfulness, which has shown depression relapse-prevention properties. Methods: Thirty-one treatment-resistant depressed patients have been assigned to our experimental treatment condition [tDCS combined with MBCT (n = 15)] or to a control condition [tDCS combined with relaxation (n = 16)]. Patients have completed both an intensive treatment block (eight consecutive days) and a single remind session 2 weeks after the intensive treatment. Clinical (depression, anxiety, and rumination) and cognitive (general cognitive functioning, mental flexibility, and working memory) symptoms of depression have been assessed through different questionnaires at baseline (t0), after the first block of treatment (t1), and after the remind session (t2). Results: Results seem to indicate a positive impact of both treatment conditions on clinical and cognitive symptoms of depression at t1. However, the treatment condition combining tDCS with mindfulness has been found to better maintain clinical improvements at t2 regarding some clinical [Montgomery-angstrom sberg Depression Rating Scale (MADRS) and Sadness and Anger Ruminative Inventory (SARI)] and cognitive variables (Digit Span-F and Digit Span-B). Conclusion: Based on the current observations, a multi-disciplinary treatment approach combining tDCS and MBCT might be effective in resistant depressed patients in the long run, even though further clinical research is necessary

Addiction: Brain and Cognitive Stimulation for Better Cognitive Control and Far Beyond

Addiction behaviors are characterized by conditioned responses responsible for craving and automatic actions as well as disturbances within the supervisory network, one of the key elements of which is the inhibition of prepotent response. Interventions such as brain stimulation and cognitive training targeting this imbalanced system can potentially be a positive adjunct to treatment as usual. The relevance of several invasive and noninvasive brain stimulation techniques in the context of addiction as well as several cognitive training protocols is reviewed. By reducing cue-induced craving and modifying the pattern of action, memory associations, and attention biases, these interventions produced significant but still limited clinical effects. A new refined definition of response inhibition, including automatic inhibition of response and a more consistent approach to cue exposure capitalizing on the phase of reconsolidation of pre-activated emotional memories, all associated with brain and cognitive stimulation, opens new avenues for clinical research

Increased Neural Activity in Hazardous Drinkers During High Workload in a Visual Working Memory Task: A Preliminary Assessment Through Event-Related Potentials

Despite equated behavioral performance levels, hazardous drinkers generally exhibited increased neural activity while performing simple cognitive tasks compared to light drinkers. Here, 49 participants (25 hazardous and 24 light drinkers) participated in an event-related potentials (ERPs) study while performing an n-back working memory task. In the control zero-back (N0) condition, the subjects were required to press a button when the number “2” or “6” was displayed. In the two-back and three-back (N2; N3) conditions, the subjects had to press a button when the displayed number was identical to the number shown two/three trials earlier. To assess for the impact of alcohol consumption on the updating of working memory processes under various cognitive loads, difference waveforms of “N2 minus N0” and “N3 minus N0” were computed by subtracting waveforms in the N0 condition from waveforms in the N2 and N3 conditions, for the light and the hazardous drinkers. Three main ERP components were noted for both groups: a P200/N200 complex, a P300 component, and an N400/P600 activity. The results show that, to perform the task at the same level as the light drinkers, the hazardous drinkers exhibited larger amplitude differences, mainly around the P300 and P600 components. These data may be considered, at the preventive level, as vulnerability factors for developing adult substance use disorders, and they stress the importance, at a clinical level, to consider such working memory processes in the management of alcohol dependence

Facteurs d’affiliation aux pairs sont étroitement associés à la criminalité des jeunes incarcérés à la prison centrale de Kinshasa : Affiliation Factors to Peers are strongly associated to the Criminality among the Youth of the Central Prison of Kinshasa

Context and objective. Increasing crime is one of the major social problems facing in the context of armed conflicts of various kinds. The objective of this study is to investigate the determinants of the peer affiliation domain of criminal and violent criminal behavior. Methods. We undertook a case-control study included 500 subjects: 297 incarcerated criminals (189 violent criminals, as crime against a person and 108 non-violent criminals, as crime against property) against 203 noncriminal subjects, between August 2015 and December 2016. We selected control subjects from general population of the city of Kinshasa and matched them with cases according to gender, age (± 2 years) and geographical origin. Logistic regression analysis was used to investigate the determinants of criminality and of violent criminality. Results. Compared to noncriminals, criminals were significantly gang members (55.6% versus 4.9%, p<0.001), carry guns (40.1% versus 7.9%, p<0.001), attend parties with friends without parental supervision (69.7% versus 34%, p<0.001), and have friends who sell drugs (44.4% versus 14.8%, p<0.001). Compared to non-violent criminals, violent criminals were significantly more likely to be gang members (60.8% versus 46.3%, p=0.015), carry weapons (46.6% versus 28.7%, p=0.003) and have friends who sell heroin (50.3% versus 34.3%, p=0.008). In multivariate logistic regression analyse, being a gang member (ORa 13.6; 95% CI: 6.76-27.67), carrying a weapon (ORa 2.85; 95% CI: 1.5-5.42) and unsupervised parties (ORa 1.95; 95% CI: 1.25-3.02) were the independently associated with crime. Only carrying weapons (ORa 1.87; 95% CI: 1.05-3.32) emerged as an independent determinant of violent crime. Conclusion. Violent and non-violent crime is a continuum in which the former differs from the latter in terms of carrying a weapon. Gang involvement, social gatherings with friends and carrying weapons are the common threads of their criminal behavior. Contexte et objectif. La criminalité croissante compte parmi les problèmes sociaux majeurs en République Démocratique du Congo aux prises à des conflits armés de diverse nature. Cette étude a pour objectif de rechercher les déterminants du domaine d’affiliation aux pairs du comportement criminel et criminel violent. Méthodes. Nous avons entrepris une étude cas-témoin enrôlant 500 sujets : 297 criminels incarcérés (189 criminels violents, crime contre la personne et 108 criminels non violents, crime contre la propriété) contre 203 sujets non criminels, entre août 2015 et décembre 2016. Les témoins ont été recrutés dans la population générale de la ville de Kinshasa et appariés aux cas, selon le sexe (même), l’âge (± 2 ans) et la provenance géographique. L’analyse de régression logistique a été utilisée pour rechercher les déterminants de la criminalité. Résultats. Comparés aux non criminels, les criminels étaient significativement membres de gang (55,6% versus 4,9%, p < 0,001), porteurs des armes (40,1% versus 7,9% ; p <0,001), dans des soirées entre amissans supervision parentale (69,7% versus 34%, p<0,001), et  avaient des amis vendeurs de drogues (44,4% versus 14,8%, p<0,001). Par rapport aux criminels non violents, les criminels violents étaient significativement membres de gang (60,8% versus 46,3%, p=0,015), porteurs des armes (46,6% versus 28,7%, p=0,003) et avaient des amis vendeurs de drogues (50,3% versus 34,3%, p=0,008). En analyse de régression logistique multivariée, être membre de gang (ORa 13,6; IC 95% : 6,76-27,67), porter une arme (ORa 2,85; IC 95% : 1,5-5,42) et assister dans les soirées sans supervision (ORa 1,95; IC 95% : 1,25-3,02) constituaient les déterminants indépendamment associés à la criminalité. Seul porter des armes (ORa 1,87; IC 95% : 1,05-3,32) a émergé comme déterminant indépendant de la criminalité violente. Conclusion. La criminalité violente et non violente constitue un continuum dans lequel la première se différencie de la deuxième par le port d’arme. La participation à un gang, les soirées entre amis et le port d’arme constituent le fils conducteur de leur comportement criminel. &nbsp

Unique Variable Analysis of Redundancy in ADHD Items from the Conners Teacher Rating Scale - Revised: Short.

peer reviewedAttention deficit hyperactivity disorder (ADHD) is a neuropsychiatric disorder interfering with the normal development of the child. The disorder can be screened at school with the Conners Teacher Rating Scale Revised Short (CTRS-R:S). This scale goes beyond the disorder itself and covers a wider construct, that of abnormal child behavior. This can be understood as a complex system of mutually influencing entities. We analyzed a data set of 525 children in French-speaking primary schools from Belgium, and estimated a network structure, as well as to determine the local dependence of items through Unique Variable Analysis. A reduced network was computed including 15 non-locally dependent items. The structural consistency of the network was not affected by redundant items and was structurally sound. The reduction of the number of variables in network studies is important to improve the investigation of network structures as well as better interpret results from inference measures

Učinak visokog intenziteta svjetlosti na okruglolisnu rosiku (Drosera rotundifolia L.)

Okruglolisna rosika (Drosera rotundifolia L.) mesojedna je biljka koja nastanjuje rijetka cretna staništa u Hrvatskoj kojima prijeti nestajanje. Metodom košnje visoke vegetacije pokušava se spriječiti zarašćivanje cretova, pri čemu se biljke prilagođene na uvjete sjene naglo izlažu uvjetima visokog intenziteta svjetlosti. Cilj ovog istraživanja bio je utvrditi promjene u učinkovitosti fotosinteze te promjene u sadržaju i sastavu fotosintetskih pigmenata i fenolnih spojeva nakon što rosike, koje smo uzgojili u uvjetima sjene, izložimo visokom intenzitetu svjetlosti (700 ± 20 μmol fotona m-2 s-1) u trajanju od 5, 30, 50 i 100 sati. Nakon izlaganja biljke koje su 5 i 100 sati bile izložene visokom intenzitetu svjetlosti, stavljene su 7 dana na oporavak u uvjete niskog intenziteta svjetla. Kontrolna grupa biljaka bila je izložena niskom intenzitetu svjetlosti (40 ± 20 μmol fotona m-2 s-1) te je predstavljala biljke koje žive u sjeni. Izlaganje biljaka visokom intenzitetu svjetlosti dovelo je do smanjenja vrijednosti optimalnog prinosa i stope prijenosa elektrona, a porasla je vrijednost nefotokemijskog gašenja. Tijekom izlaganja visokom intenzitetu svjetlosti u biljkama je izmjeren niži udio klorofila u tkivu te povećan udio karotenoida, a povećali su se i udjeli fenola, tanina, flavonoida i antocijana. Ovi rezultati ukazuju da je izlaganje visokom intenzitetu svjetlosti dovelo do preopterećenosti fotosintetskog aparata i fotoinhibicije. Međutim došlo je i do prilagođavanja biljaka jer je za očekivati da će se zbog manjeg udjela klorofila smanjiti apsorpcija energije, odnosno povišenjem udjela karotenoida povećat oslobađanje viška energije u obliku topline što će zaštiti fotosintetski aparat od svjetlosnog stresa. Osim toga, uočeno povećanje udjela fenolnih spojeva u tkivu također može imati ulogu u zaštiti biljaka od oksidacijskog stresa uzrokovanog svjetlosnim stresom i/ili u smanjenju apsorpcije svjetlosne energije.Roundleaf sundew (Drosera rotundifolia L.) is a carnivorous plant that inhabits peat-bog areas which are rare in Croatia and in danger of extinction. Proposed mowing treatment of high vegetation prevents the disappearance of peat-bogs due to overgrowth, but also exposes shade-acclimated plants to high light conditions. The aim of this study was to determine the changes in photosynthethic efficiency well as content of photosynthetic pigments and phenolic compounds in shade-acclimated plants exposed to high light intensity radiation (700 ± 20 μmol photons m-2 s-1) for 5, 30, 50 and 100 h. Plants exposed to 5 and 100 h of high-light radiation were brought to the 7 days recovery under low light intensity. The control group of plants were grown under low intensity radiation (40 ± 20 μmol photons m-2 s-1) and represented shade-acclimated plants. The sudden exposure of shade-acclimated plants to high light intensity decreased the fluorescence-based maximal quantum yield of PSII and rate of electron transfer, but increased the value of non-photochemical quenching. Following high light exposure the plants have reduced the chlorophyll content in tissue, but increased carotenoids content as well as content of total phenols, tannins, flavonoids and anthocyanins. These results suggest that the exposure to high light intensity led to an overload of the photosynthetic apparatus and photoinhibition. However, acclimatization of plants was also observed because it is expected that the lower chlorophyll content would result in reduced energy absorption while increased carotenoids could dissipate excess energy thus protecting photosynthetic apparatus from excess light. In addition observed increase of phenolic compounds would protect plants from oxidative stress and/or further reduce the absorption of excess light energy

Study Protocol: Transition_psy a Multicenter Prospective Longitudinal Cohort Study Assessing Risk and Protective Factors to Develop Psychopathology in Transitional Age Youth in Belgium

Introduction: Emerging adults are a particularly at-risk population in mental health. The primary aim of the Transition_psy study is to evaluate changes in mental health care need and quality of life during transition from Child and Adolescent Mental Health Services (CAMHS) to Adult Mental Health Services (AMHS). The relationship between these changes and genetic or environmental vulnerabilities and clinical dimensions representing risk and protective factors to the development of psychopathology will be analyzed. We also aim to explore how each factor plays, specifically, a role in developing internalizing and externalizing symptoms, in order to predict the most common paths of psychopathology in transitional age youth (TAY).Methods and Analysis:Transition_psy is a multicenter prospective longitudinal cohort study. The transversal and trans-diagnostic approach consists of a dimensional evaluation: 300 youth at the age of 17 will be included in a cohort of in-patients, out-patients and control group. Participants will be assessed at baseline (T0) and 24 months later (T1). The primary objective to determine changes in self-rated Health Of The Nation Outcome Scales For Children And Adolescents (HONOSCA-SR) and WHO Quality of Life-BREF (WHOQOL-BREF) scores between T0 and T1. Pearson correlation and mediation analysis will be performed. A secondary objective analysis using mediation and moderation models with several dimensional aspects, including self-reported and cognitive measures, will be conducted to disentangle the potential relationships between the two scores.Discussion: Transition from CAMHS to AMHS occurs at a crucial age in terms of the continuum between adolescent and adulthood psychopathology. This collaborative and cohesive protocol between CAMHS and AMHS represents the first national cohort study about Transition Psychiatry in French-speaking Belgium.Ethics and Dissemination: The study protocol was approved by the Institutional Review Boards (IRB) of the three participating sites. Results will be published in peer-reviewed journals and disseminated at national and international conferences. This trial was registered in ClinicalTrials.gov (Identifier: NCT04333797) on 3 April 2020

Alcohol-Related Context Modulates Performance of Social Drinkers in a Visual Go/No-Go Task: A Preliminary Assessment of Event-Related Potentials

Background Increased alcohol cue-reactivity and altered inhibitory processing have been reported in heavy social drinkers and alcohol-dependent patients, and are associated with relapse. In social drinkers, these two processes have been usually studied separately by recording event-related potentials (ERPs) during rapid picture presentation. The aim of our study was to confront social drinkers to a task triggering high alcohol cue-reactivity, to verify whether it specifically altered inhibitory performance, by using long-lasting background picture presentation. Methods ERP were recorded during visual Go/No-Go tasks performed by social drinkers, in which a frequent Go signal (letter “M”), and a rare No-Go signal (letter “W”) were superimposed on three different types of background pictures: neutral (black background), alcohol-related and non alcohol-related. Results Our data suggested that heavy social drinkers made more commission errors than light drinkers, but only in the alcohol-related context. Neurophysiologically, this was reflected by a delayed No-Go P3 component. Conclusions Elevated alcohol cue-reactivity may lead to poorer inhibitory performance in heavy social drinkers, and may be considered as an important vulnerability factor in developing alcohol misuse. Prevention programs should be designed to decrease the high arousal of alcohol stimuli and strengthen cognitive control in young, at-risk individuals.This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.SCOPUS: ar.jinfo:eu-repo/semantics/publishe