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1.
Behav Modif ; : 1454455241236446, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38557310

RESUMEN

Behavior therapy is a well-established and empirically supported treatment for tic disorders (TDs). However, concerns have been expressed about the negative effects of behavioral interventions, such as tic worsening, tic substitution, and excessive effort. This study explored perceived negative effects of tic management strategies in adults with TDs and predictors of these experiences. Participants (N = 72) completed semi-structured interviews 11 years after receiving behavior therapy or supportive therapy in a randomized clinical trial. We examined responses to interview questions about managing tics and predictors of reported negative effects. Most participants did not experience tic worsening (84%) or tic substitution (75%) from tic management strategies. The majority felt they could manage tics while participating in their environment (87%) and did not report life interference from tic management (77%). About half (45%) felt less present when managing tics. Treatment non-responders in the original trial were more likely to report negative effects of tic management strategies. No differences in reported negative consequences were found between those who received behavior therapy versus supportive therapy, suggesting that behavior therapy specifically does not lead to such adverse effects. These findings could reduce misconceptions about behavior therapy for TDs and enhance its acceptability and utilization.

2.
J Clin Med ; 11(21)2022 Oct 31.
Artículo en Inglés | MEDLINE | ID: mdl-36362696

RESUMEN

Over the past 3 years, a global phenomenon has emerged characterized by the sudden onset and frequently rapid escalation of tics and tic-like movements and phonations. These symptoms have occurred not only in youth known to have tics or Tourette syndrome (TS), but also, and more notably, in youth with no prior history of tics. The Tourette Association of America (TAA) convened an international, multidisciplinary working group to better understand this apparent presentation of functional neurological disorder (FND) and its relationship to TS. Here, we review and summarize the literature relevant to distinguish the two, with recommendations to clinicians for diagnosis and management. Finally, we highlight areas for future emphasis and research.

3.
Behav Ther ; 53(6): 1250-1264, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36229120

RESUMEN

Tics peak in late childhood and decline during adolescence. Yet, for some with Tourette's disorder, tics persist into adulthood. We evaluated childhood predictors of adult tic severity and tic impairment, and change over time. Eighty adolescents/adults were evaluated 11 years following a randomized-controlled trial of behavior therapy. An independent evaluator rated tic severity and tic impairment at baseline, posttreatment, and long-term follow-up. At baseline, parents completed demographics/medical history, and youth tic, internalizing, and externalizing symptom ratings. Youth rated premonitory urge severity and family functioning. After controlling for prior tic treatment effects, female sex and higher tic severity predicted higher tic severity in adulthood; and female sex, no stimulant medication use, higher tic severity, and poorer family functioning predicted higher tic impairment. Higher tic severity and premonitory urge severity predicted smaller reductions in tic severity, whereas higher externalizing symptoms predicted greater reduction in tic severity. Female sex predicted smaller reduction in tic impairment, and externalizing symptoms predicted greater reduction in tic impairment. Female sex and childhood tic severity are important predictors of tic severity and tic impairment in adulthood. Family functioning, premonitory urge severity, and tic severity are important modifiable targets for early or targeted intervention to improve long-term outcomes.


Asunto(s)
Trastornos de Tic , Tics , Síndrome de Tourette , Adolescente , Adulto , Terapia Conductista , Niño , Femenino , Humanos , Índice de Severidad de la Enfermedad , Trastornos de Tic/complicaciones , Trastornos de Tic/terapia , Tics/terapia , Síndrome de Tourette/complicaciones , Síndrome de Tourette/terapia
4.
Artículo en Inglés | MEDLINE | ID: mdl-36074210

RESUMEN

Given the wide range of diagnostic presentations treated in partial hospital programs, finding efficient ways to identify and measure progress on the chief concerns of consumers in these settings is important. The current study uses a self-administered version of the Top Problems Assessment to describe treatment targets identified by youth and their caregivers presenting for care at an adolescent partial hospital setting. Caregiver-youth agreement on these chief concerns upon admission and predictors of agreement were explored. About one-third (34.65%) of caregiver-youth pairs did not match on any target problems. Although anxiety and depression were the most commonly cited top problems in this sample, caregivers and youth exhibited disagreement on these domains. Treatment teams in acute care settings such as a partial hospital program can benefit from careful assessment surrounding the initial goals of treatment as youth and their caregivers may not agree on the referral problems upon entering a program.

7.
Res Child Adolesc Psychopathol ; 50(9): 1107-1119, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35441908

RESUMEN

Group programs are key for targeting social skills (SS) for children with developmental disorders and/or mental illness. Despite promising evidence regarding efficacy of group treatments, there are several limitations to current research regarding generalizability and effectiveness across diagnoses. This randomized control trial assessed whether the Secret Agent Society (SAS) group program was superior to treatment as usual (TAU) in improving social-emotional functioning for children with Attention Deficit-Hyperactivity Disorder (ADHD), Autism Spectrum Disorder (ASD), and/or anxiety. Eighty-nine youth (8-12) with ADHD, ASD, and/or an anxiety disorder receiving treatment at hospital-based outpatient clinics were randomized to receive SAS (n = 47) or TAU (n = 42) over a three-month period, at which point TAU participants were offered the SAS intervention. Parent report showed significant improvement in Emotion Regulation (ER) and Social Skills (SS) for youth in SAS vs. TAU (Fs ≥ 6.79, ps ≤ 01). Gains for the SAS condition were maintained at 6-months. Intent-to-treat analysis of teacher report indicated youth in SAS had positive gains in SS (F = 0.41, p = 0.475) and ER (F = 0.99, p = 0.322), though not significantly better than youth in TAU. Clinically reliable improvement rates were significantly higher for SAS participants than TAU for parent and teacher reported SS and ER. Improvements were significant for youth with single and comorbid diagnoses. Results suggest that SAS was superior to TAU in improving SS and ER for youth aged 8-12 with ADHD, ASD, and/or anxiety. Gains maintained in the medium-term. Trial registration number NCT02574273, registered 10/12/2015.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno del Espectro Autista , Adolescente , Ansiedad/psicología , Trastorno por Déficit de Atención con Hiperactividad/terapia , Trastorno del Espectro Autista/diagnóstico , Niño , Humanos , Ajuste Social , Habilidades Sociales
8.
J Am Acad Child Adolesc Psychiatry ; 61(6): 764-771, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34508805

RESUMEN

OBJECTIVE: To determine the long-term durability of behavior therapy for tics among youth with Tourette disorder and persistent (chronic) motor or vocal tic disorders. METHOD: Of the 126 youth who participated in a randomized controlled trial of behavior therapy 11 years prior, 80 were recruited for this longitudinal follow-up. Consenting participants were interviewed in person or remotely (Web-based video) by trained evaluators to determine the course of tics, current tic severity, and tic-related impairment. Recruitment and data collection occurred between 2014 and 2019, with an average follow-up duration of 11.2 years. RESULTS: Treatment responders to both conditions in the original trial achieved partial, but not full, tic remission. Tic severity also decreased significantly across the sample, with 40% reporting partial remission. Behavior therapy responders (n = 21) in the original trial were more likely (67%) to achieve remission at follow-up (Total Tic Score = 12.52, SD = 10.75) compared to psychoeducation/supportive therapy responders (n = 6, 0%) at follow-up (Total Tic Score = 20.67, SD = 6.92) on the Yale Global Tic Severity Scale. Tic-related impairment decreased across the sample, with no significant differences between treatment groups or responders. CONCLUSION: Despite limitations of unmeasured variables and veracity of self-report at follow-up, this study supports guidelines recommending behavior therapy as the first-line intervention for tics. Further investigation of behavior therapy as an early preventive intervention also merits attention.


Asunto(s)
Trastornos de Tic , Tics , Síndrome de Tourette , Adolescente , Terapia Conductista , Humanos , Índice de Severidad de la Enfermedad , Trastornos de Tic/terapia , Tics/terapia , Síndrome de Tourette/terapia
9.
Child Psychiatry Hum Dev ; 53(5): 953-963, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-33959852

RESUMEN

The use of an oral orthotic, called an occlusal splint, has gained recognition for the potential to reduce the frequency of tics for individuals with Persistent Tic Disorders. The purpose of this study was to assess the feasibility of a fully blinded, randomized controlled trial (RCT) to assess the safety, tolerability and initial efficacy of the oral orthotic in youth with chronic tics. Thirteen youth were randomly assigned to wear an active or sham orthotic in a two week double-blind RCT, with a 4-6 week unblinded follow up period. A statistically significant difference was found for change in tic severity between participants wearing the active and sham orthotic. However, this difference was not replicated during the follow up period. The oral orthotic is a promising intervention for the reduction of tics in youth with Tourette's Syndrome and is worthy of continued study to establish intervention efficacy and mechanism of action.


Asunto(s)
Aparatos Ortopédicos , Trastornos de Tic , Tics , Síndrome de Tourette , Adolescente , Humanos , Prueba de Estudio Conceptual , Tics/terapia , Síndrome de Tourette/terapia
10.
J Am Acad Child Adolesc Psychiatry ; 60(12): 1445-1447, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34391859

RESUMEN

Consistent with international reports,1 this group of Tourette syndrome (TS) experts has noticed a recent increase in adolescents presenting with tic-like symptoms that show a markedly atypical onset and course. These sudden-onset motor movements and vocalizations are often associated with significant impairment and disability, resulting in emergency department visits and hospitalizations for some affected youths.


Asunto(s)
Trastorno Obsesivo Compulsivo , Trastornos de Tic , Tics , Síndrome de Tourette , Adolescente , Humanos , Síndrome de Tourette/diagnóstico , Síndrome de Tourette/terapia
11.
Behav Ther ; 51(4): 659-669, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32586437

RESUMEN

The Comprehensive Behavioral Intervention for Tic Disorders (CBIT) has demonstrated efficacy in large randomized controlled trials for children (≥9 yrs), adolescents and adults with Tourette Syndrome and Chronic Tic Disorders. Given the early age of onset for tic disorders, a large portion of affected individuals with chronic tic disorders are less than 9 years of age and appropriate developmental adaptations of behavioral treatment have not yet been tested. The goal of this study was to adapt and evaluate the acceptability and utility of a family-based adaptation of CBIT for children under 9 years of age. Children 5-8 years of age (N = 15) with chronic tics were recruited from three study sites. CBIT was adapted for use with young children and included habit reversal strategies introduced in a developmentally appropriate game format and function-based interventions to reduce family accommodation of and attention to tic symptoms. Children and parents described high level of treatment satisfaction and study retention rate was 100%. Treatment response rate was 54% (CGI-I = 1 or 2) with a significant decrease in the YGTSS total score (Cohen's d = 0.73) that was largely maintained at 3-month and 1-year follow-up assessments. Treatment was associated with reduction of some symptoms of tic-related comorbid syndromes and with changes in parental accommodation and attention to tics. Future research should determine if parental attention to tics and symptom accommodation are important mediators of treatment outcome, or if participating in this intervention at a younger age may prevent the chronic course of tic symptoms.


Asunto(s)
Trastornos de Tic , Tics , Terapia Conductista , Niño , Enfermedad Crónica , Humanos , Intervención Psicosocial , Índice de Severidad de la Enfermedad , Tics/terapia
12.
J Neural Transm (Vienna) ; 125(4): 727-734, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29185077

RESUMEN

Individuals with chronic tic disorders (CTDs) frequently describe aversive subjective sensory sensations that precede their tics. The first aim of the present study was to explore the psychometric properties of a standardized self-report measure to assess premonitory urges in CTDs, The Premonitory Urge for Tics Scale (PUTS), by replicating the analyses of Woods et al. (J Dev Behav Pediatr 26:397-403, 2005) using a sample twice the size of theirs. The second aim was to conduct an exploratory factor analysis of the PUTS. Eighty-four youth with CTDs, recruited from a pediatric OCD and tic specialty clinic, completed the PUTS while their caregivers completed The Parent Tic Questionnaire (PTQ) and a demographic measure. Consistent with (Woods et al. J Dev Behav Pediatr 26:397-403, 2005), the PUTS was found to be internally consistent (α = 0.82) and significantly correlated with overall tic severity as measured by the PTQ (r = 0.24, p < 0.05) as well as the PTQ number (r = 0.34, p < 0.01) and intensity (r = 0.24, p < 0.05) subscales. A factor-analysis of the PUTS revealed a two-factor solution with one factor capturing the quality of premonitory sensations while the other factor assessed the overall intensity of the urges. These results support the use of the PUTS in reliably measuring premonitory urges, particularly in children over the age of 10 years. Additionally, these findings highlight that urges are uniformly reported across gender and age and are more closely associated with number of tics than the frequency or intensity of tics.


Asunto(s)
Autoinforme , Trastornos de Tic , Adolescente , Niño , Preescolar , Femenino , Humanos , Masculino , Psicometría , Adulto Joven
13.
Am J Psychiatry ; 171(7): 741-8, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24874020

RESUMEN

Separation, generalized, and social anxiety disorders are common and impairing for children and adolescents. Childhood-onset anxiety disorders frequently persist into adulthood and place youths at risk for future psychiatric disorders, including mood and substance use disorders. Comorbidity is common in childhood anxiety disorders, and studies increasingly take this into account when assessing potential treatments. Existing studies support a number of pharmacological and psychotherapeutic treatments for childhood anxiety disorders. The strongest evidence supports use of selective serotonin reuptake inhibitors (SSRIs) and cognitive-behavioral therapy (CBT). Combination treatment with SSRIs and CBT has been found to be more effective than either treatment alone. Early detection and treatment of childhood anxiety disorders can prevent substantial impairment over the course of a child's development and accumulation of functional disability. Early treatment also may prevent later development of adult psychiatric illness. The authors review the treatment literature and present the case of an adolescent who is brought in for evaluation after years of untreated anxiety.


Asunto(s)
Ansiolíticos/uso terapéutico , Trastornos de Ansiedad/terapia , Ansiedad de Separación/terapia , Terapia Cognitivo-Conductual , Trastornos Fóbicos/terapia , Inhibidores Selectivos de la Recaptación de Serotonina/uso terapéutico , Adolescente , Ansiolíticos/efectos adversos , Trastornos de Ansiedad/diagnóstico , Trastornos de Ansiedad/psicología , Ansiedad de Separación/diagnóstico , Ansiedad de Separación/psicología , Niño , Terapia Combinada , Comorbilidad , Humanos , Trastornos Fóbicos/diagnóstico , Trastornos Fóbicos/psicología , Ensayos Clínicos Controlados Aleatorios como Asunto , Inhibidores Selectivos de la Recaptación de Serotonina/efectos adversos , Ajuste Social
14.
Ann N Y Acad Sci ; 1304: 32-9, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24175754

RESUMEN

Competing theories on the etiology and treatment of chronic tic disorders and Tourette syndrome have long made the search for efficacious intervention more challenging for patients and families seeking to reduce functional impairment related to tic symptoms. These symptoms were historically posited to be either psychological in origin, leading to the long tradition of psychoanalytic psychotherapy for tics, or biological in nature, particularly since the advent of successful treatments using neuroleptic medications. Current thinking about the phenomenology of tic disorders comes from growing empirical evidence as well as advances in neuroscience and genetics research and reveals a biological vulnerability that is exacerbated by physiological arousal related to environmental or interpersonal stress. This manuscript summarizes the evolution of this knowledge base and describes current best-practice recommendations for patients, families, and clinicians.


Asunto(s)
Encéfalo/fisiología , Trastorno de Movimiento Estereotipado/psicología , Trastornos de Tic/terapia , Antipsicóticos/uso terapéutico , Humanos , Actividad Motora , Corteza Motora/fisiología , Trastorno de Movimiento Estereotipado/terapia , Trastornos de Tic/etiología , Síndrome de Tourette/etiología , Síndrome de Tourette/terapia
15.
Clin Child Fam Psychol Rev ; 12(3): 234-54, 2009 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-19238542

RESUMEN

Given the relationship between internalizing disorders and deficits in emotion regulation in youth, the emotion science literature has suggested several avenues for increasing the efficacy of interventions for youth presenting with anxiety and depression. These possibilities include the identification and addition of emotion-regulation skills to existing treatment packages and broadening the scope of those emotions addressed in cognitive-behavioral treatments. Current emotion-focused interventions designed to meet one or both of these goals are discussed, and the developmental influences relevant to the selection of emotion-focused treatment goals are explored using the framework of a modal model of emotion regulation. These various lines of evidence are woven together to support the utility of a novel emotion-focused, cognitive-behavioral intervention, the Unified Protocol for the Treatment of Emotional Disorders in Youth, a transdiagnostic treatment protocol that aims to treat the range of emotional disorders (i.e., anxiety and depression) simultaneously. Avenues for future directions in treatment outcome and assessment of emotion regulation are also discussed.


Asunto(s)
Síntomas Afectivos/psicología , Síntomas Afectivos/terapia , Trastornos de Ansiedad/psicología , Trastornos de Ansiedad/terapia , Terapia Cognitivo-Conductual/métodos , Trastorno Depresivo/psicología , Trastorno Depresivo/terapia , Control Interno-Externo , Adolescente , Síntomas Afectivos/diagnóstico , Trastornos de Ansiedad/diagnóstico , Nivel de Alerta , Concienciación , Niño , Terapia Combinada , Trastorno Depresivo/diagnóstico , Terapia Familiar/métodos , Humanos , Individualismo , Responsabilidad Parental/psicología , Resultado del Tratamiento
16.
Cogn Behav Pract ; 16(3): 317-331, 2009 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-21935300

RESUMEN

Numerous clinical trials have demonstrated the efficacy of cognitive behavior therapy (CBT) for the treatment of childhood Separation Anxiety Disorder (SAD) and other anxiety disorders (Velting, Setzer, & Albano, 2004), yet additional research may still be needed to better access and engage anxious youth (Kendall, Suveg, & Kingery, 2006). In this study, we investigated the acceptability and preliminary utility of a group cognitive-behavioral intervention for school-aged girls with SAD provided within an intensive, 1-week setting. The development of the proposed treatment strategy, a 1-week summer treatment program, was predicated on evidence supporting the need for childhood treatments that are developmentally sensitive, allow for creative application of intervention components, incorporate a child's social context, and ultimately establish new pathways for dissemination to the community. The summer treatment program for SAD was pilot-tested using a case-series design with 5 female children, aged 8 to 11, each with a principal diagnosis of SAD. For 4 of the 5 participants, treatment gains were evidenced by changes in diagnostic status, significant reductions in measures of avoidance, and improvements on self- and parent-report measures of anxiety symptomology. Specifically, severity of SAD symptoms decreased substantially at posttreatment for each participant and, 2 months following treatment, none of the participants met diagnostic criteria for the disorder. A fifth participant experienced substantive improvement in diagnostic status prior to the onset of treatment and, though she evidenced continued improvements following treatment, the role of the intervention in such improvements is less clear.

17.
J Psychiatr Pract ; 12(6): 364-83, 2006 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17122697

RESUMEN

An adolescent's possible response to being the victim of interpersonal violence is not limited to posttraumatic stress disorder and depression but may also involve a host of developmental effects, including the occurrence of high-risk behaviors that may have a significant and negative impact on the adolescent's psychological and physical health. Identifying such high-risk behaviors, understanding their possible link to a previous victimization incident, and implementing interventions that have been demonstrated to reduce such behaviors may help decrease potential reciprocal interactions between these areas. Clinicians in psychiatric practice may be in a unique position to make these connections, since parents of adolescents may perceive a greater need for mental health services for youth engaging in problematic externalizing behaviors than for those displaying internalizing symptoms. In this article, the authors first describe high-risk behaviors, including substance use, delinquent behavior, risky sexual behaviors, and self-injurious behaviors, that have been linked with experiencing interpersonal violence. They then review empirically based treatments that have been indicated to treat these deleterious behaviors in order to help clinicians select appropriate psychosocial interventions for this population. Recommendations for future research on the treatment of high-risk behaviors in adolescents are also presented.


Asunto(s)
Víctimas de Crimen , Investigación Empírica , Delincuencia Juvenil/prevención & control , Psicoterapia/métodos , Medición de Riesgo , Asunción de Riesgos , Conducta Autodestructiva/prevención & control , Trastornos por Estrés Postraumático/terapia , Trastornos Relacionados con Sustancias/terapia , Adolescente , Niño , Humanos , Relaciones Interpersonales , Acontecimientos que Cambian la Vida , Servicios de Salud Mental/organización & administración , Conducta de Reducción del Riesgo , Conducta Sexual , Violencia/prevención & control
18.
Pharmacol Biochem Behav ; 80(1): 1-7, 2005 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-15652375

RESUMEN

Recently, it has been shown that female rats receiving very large doses (e.g., 2 mg) of estradiol valerate (EV) take considerably more alcoholic beverage than placebo controls. The question asked, with these procedures, is whether the enhanced appetite for alcoholic beverages was specific to those beverages or was a reflection of a general increase in appetite. Female rats were provided with various sweetened beverages. In one experiment, they were provided a palatable saccharin solution (0.25% solution) and a less palatable one (2% saccharin solution). EV treatment led to more intake of the palatable saccharin solution and reduced intake of the less palatable solution. EV induces changes leading to enhanced appetite for some ingesta (including palatable saccharin solutions and alcoholic beverages), but surely not all ingesta.


Asunto(s)
Ingestión de Líquidos/efectos de los fármacos , Estradiol/análogos & derivados , Estradiol/farmacología , Sacarosa/administración & dosificación , Edulcorantes/administración & dosificación , Animales , Ingestión de Líquidos/fisiología , Femenino , Ratas , Ratas Sprague-Dawley
19.
J Neurosci ; 24(8): 1793-802, 2004 Feb 25.
Artículo en Inglés | MEDLINE | ID: mdl-14985419

RESUMEN

Brain motivational circuitry in human adolescence is poorly characterized. One theory holds that risky behavior in adolescence results in part from a relatively overactive ventral striatal (VS) motivational circuit that readily energizes approach toward salient appetitive cues. However, other evidence fosters a theory that this circuit is developmentally underactive, in which adolescents approach more robust incentives (such as risk taking or drug experimentation) to recruit this circuitry. To help resolve this, we compared brain activation in 12 adolescents (12-17 years of age) and 12 young adults (22-28 years of age) while they anticipated the opportunity to respond to obtain monetary gains as well as to avoid monetary losses. In both age groups, anticipation of potential gain activated portions of the VS, right insula, dorsal thalamus, and dorsal midbrain, where the magnitude of VS activation was sensitive to gain amount. Notification of gain outcomes (in contrast with missed gains) activated the mesial frontal cortex (mFC). Across all subjects, signal increase in the right nucleus accumbens during anticipation of responding for large gains independently correlated with both age and self-rated excitement about the high gain cue. In direct comparison, adolescents evidenced less recruitment of the right VS and right-extended amygdala while anticipating responding for gains (in contrast with anticipation of nongains) compared with young adults. However, brain activation after gain outcomes did not appreciably differ between age groups. These results suggest that adolescents selectively show reduced recruitment of motivational but not consummatory components of reward-directed behavior.


Asunto(s)
Encéfalo/fisiología , Motivación , Asunción de Riesgos , Adolescente , Adulto , Factores de Edad , Ganglios Basales/anatomía & histología , Ganglios Basales/fisiología , Conducta/fisiología , Encéfalo/anatomía & histología , Mapeo Encefálico , Corteza Cerebral/anatomía & histología , Corteza Cerebral/fisiología , Niño , Señales (Psicología) , Femenino , Lóbulo Frontal/anatomía & histología , Lóbulo Frontal/fisiología , Lateralidad Funcional , Humanos , Imagen por Resonancia Magnética , Masculino , Mesencéfalo/anatomía & histología , Mesencéfalo/fisiología , Vías Nerviosas/fisiología , Núcleo Accumbens/anatomía & histología , Núcleo Accumbens/fisiología , Valores de Referencia , Tálamo/anatomía & histología , Tálamo/fisiología
20.
Neuroimage ; 18(2): 263-72, 2003 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-12595181

RESUMEN

The function of the mesial prefrontal cortex (MPFC: including Brodman areas 10/12/32) remains an enigma. Current theories suggest a role in representing internal information, including emotional introspection, autonomic control, and a "default state" of semantic processing. Recent evidence also suggests that parts of this region may also play a role in processing reward outcomes. In this study, we investigated the possibility that a region of the MPFC would be preferentially recruited by monetary reward outcomes using a parametric monetary incentive delay (MID) task. Twelve healthy volunteers participated in functional magnetic resonance scans while playing the MID task. Group analyses indicated that while the ventral striatum was recruited by anticipation of monetary reward, a region of the MPFC instead responded to rewarding monetary outcomes. Specifically, volume-of-interest analyses indicated that when volunteers received $5.00 after anticipating a $5.00 win, MPFC activity increased, whereas when volunteers did not receive $5.00 after anticipating a $5.00 win, MPFC activity decreased, relative to outcomes with no incentive value. These findings suggest that in the context of processing monetary rewards, a region of the MPFC preferentially tracks rewarding outcomes.


Asunto(s)
Nivel de Alerta/fisiología , Atención/fisiología , Procesamiento de Imagen Asistido por Computador , Imagen por Resonancia Magnética , Motivación , Corteza Prefrontal/fisiología , Adulto , Ganglios Basales/fisiología , Mapeo Encefálico , Femenino , Humanos , Masculino , Red Nerviosa/fisiología , Núcleo Accumbens/fisiología , Reconocimiento Visual de Modelos , Solución de Problemas/fisiología , Tiempo de Reacción/fisiología , Valores de Referencia , Recompensa
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