SoCIAL: Efficacy Study of a New Individualized Rehabilitation Programme for Social Cognition in Patients With Schizophrenia
Study Details
Study Description
Brief Summary
Patients affected by schizophrenia often present significant deficits in various aspects of social cognition, such as social perception, recognition of one's own and other people's emotional state and the theory of mind. Recent studies investigated the correlation between social cognition and real-life functioning, reporting that greater social cognition deficits determine worse social and occupational functioning in real-life.
Therefore, social cognition deficits represent an important target both in therapeutic and rehabilitative treatment in patients with psychotic conditions, especially in the early phases of the disease.
Our research group has implemented a new individualized rehabilitation programme for social cognition: the Social Cognition Individualized Activities Lab, SoCIAL. The pivotal study showed that this programme improves specifically social cognition abilities, even when compared to a standardised and validated rehabilitation programme such as the Social Skills And Neurocognitive Individualized Training (SSANIT). However, the improvement in social cognition did not translate in improvement in real-life functioning.
Recently, another key aspect that plays a role in quality of life and real life functioning in people with schizophrenia has emerged, the narrative abilities. Available data confirm that this variable has a strong impact on social functioning and quality of life in patients with schizophrenia.
Taking into account the above evidence, our group decided to implement a new version of the social cognitive remediation programme in order to overcome the limitations found during its pivotal study. The new SoCIAL programme is characterized by specific modules for training of social cognition and narrative abilities in patients with schizophrenia. The efficacy of this programme, compared to treatment as usual, in individuals diagnosed with schizophrenia or schizoaffective disorder will be assessed. The generalization of improvement to real-life functioning domains will also be evaluated in completers and in the intent-to-treat sample.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
BACKGROUND:
In patients with schizophrenia an impairment in different cognitive domains has been well established. Cognitive impairment has been associated with poor social functioning and poor quality of life. Evidence has been reported suggesting that the impact of cognitive impairment in real-life functioning is even greater than the one exerted by positive and negative symptoms. Furthermore, this impairment can be detected throughout different phases of schizophrenia, such as the premorbid, prodromal and remission stages of the illness. From a neurobiological perspective, this impairment might be explained as the cumulative effect of abnormalities in neuronal maturation processes, neurodevelopment and neuroplasticity that could lead to defective cortico-cerebellar-thalamic-cortical circuits.
Among all the cognitive domains, Social Cognition (SC) was highlighted not only for its direct impact on functioning, but also for its key role in mediating the effects of the other cognitive domains on real-life functioning. SC represents a complex cognitive domain that underlies fundamental abilities for social interactions, such as the capacity to perceive, interpret and generate answers based on other people's intentions, emotions, and behaviors.
Studies regarding SC in schizophrenia identified 4 sub-domains impaired in affected subjects:
emotion recognition, social role perception, theory of mind and attributional style.
Despite the key role that cognitive impairment plays in schizophrenia, the pharmacological options of treatment against them seem to have a marginal impact; consequently, a number of psychological treatments has been developed in order to get a significant improvement in the cognitive domains impairments, in quality of life and in real-life functioning. Specifically, the cognitive remediations programmes are mainly targeted in improving neurocognitive functions (such as attention, memory, learning) rather than obtaining a better outcome in SC, even if the early results in this field are promising.
Different approaches have been used to develop cognitive remediation programmes for SC: some of them, defined as "integrated", aim to train both SC domains and neurocognitive domains; other programmes, defined as "targeted", are designed to improve only specific SC domains. A meta-analysis of SC programmes showed that these interventions produce significant improvements in 2 of the 4 SC impaired domains in schizophrenia (facial emotion recognition and theory of mind), as well as in real life functioning and in negative symptoms.
The Department of Psychiatry of the University of Campania "Luigi Vanvitelli" developed an integrated group intervention, the Social Cognition Individualized Activities Lab (SoCIAL), with the purpose to improve both SC domains (recognition of emotions and theory of mind). In the pivotal study, SoCIAL was compared to a largely validated remediation programme for social abilities, the Social Skills and Neurocognitive Individualized Training. Results showed that participants that underwent the SoCIAL programme improved their SC abilities, together with a significant reduction of the avolition domain in negative symptomatology, compared to the control group.
Conversely, no difference was found among the two groups when looking at other clinical variables such as positive and disorganized symptoms, neurocognitive functions and real-life functioning. In particular, any of the participants in both groups showed an improvement in social functioning, probably due to the "rooftop effect", i.e. the high level of functioning that these patients already had before the treatment started.
The main limitations found for this programme concerned two aspects: 1) the conduction of the intervention in a group setting and 2) the role-play module. The group setting was considered to be bounding because: a) in a group session, it is harder to individualize the intervention, considering that it could be challenging to work on deficits shared by all participants); b) participants' recruitment could be complicated if some subjects refuse, or are unable, to attend group sessions. The role-play, a very useful technique for the treatment of social abilities, does not seem to have the same results when it comes to SC; the SoCIAL programme, in fact, aims to improve one's capacity to recognize other people's emotions, thoughts and beliefs. During the role-play simulation, subjects may experience frustration in case they are unable to understand the role played by another patient during the simulation, considering that the intentions of the "actor" should be hidden to the subject.
Additionally, literature has recently identified an interesting technique that could help individuals affected by schizophrenia train their narrative ability, i.e. narrative enhancement. A consensual definition of "narrative abilities" is complicated by the multitude of theoretical approaches. According to the phenomenological perspective, narrative abilities consist of two different components: phenomenological continuity and narrative continuity. Phenomenological continuity is the ability to make "mental time travel", both reliving past experiences and pre-experiencing events that may occur in the future. Narrative continuity is the sense of personal continuity due to the ability to create a personal story (biography) that is coherent and adherent to the facts. These abilities are impaired in schizophrenia and several studies have shown a correlation between narrative abilities and metacognition. Narrative and metacognitive abilities play a substantial role in determining the poor quality of life for people with schizophrenia and low personal narrative ability is also associated with negative and depressive symptoms. Some studies used the narrative enhancement technique in a rehabilitation programme defined as "integrated", since it trained both neurocognitive and narrative abilities. The results are encouraging, considering that this technique seems to considerably decrease internalized stigma and to improve quality of life for participants, even when compared to other psychological and rehabilitative programmes.
This project aims to evaluate the efficacy of the SoCIAL programme in a larger sample. Moreover, it will be administered individually (not in a group setting) and the narrative enhancement technique will replace the role-play session (more info available in "Social Cognitive Individualized Activities Lab" paragraph, in "Methods" section). Lastly, the efficacy of the programme will be evaluated by comparing the SoCIAL's participants vs a group of patients treated as usual.
AIMS:
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to modify and implement the individualized cognitive remediation programme (SOcial Cognition Individualized Activities Lab, SoCIAL)
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to compare the efficacy of SoCIAL programme vs (treatment-as-usual (TAU) in patients that have been diagnosed with schizophrenia/schizoaffective disorder (based on DSM-V criteria) with illness durations <10 years. Efficacy will be evaluated with primary and secondary outcomes: 1) the primary outcome is to evaluate SoCIAL efficacy on patients' social cognition, negative symptoms, level of functioning and quality of life; 2) the secondary outcome is to evaluate improvements in positive and disorganized symptoms of schizophrenia, functional capacity and cognition.
PROCEDURE:
The study will be carried out at The Department of Psychiatry of the University of Campania "Luigi Vanvitelli" and the Department of Mental Health and Addictions, ASST Fatebenefratelli Sacco that will enroll outclinic patients with a diagnosis of schizophrenia/schizoaffective disorder according to DSM-V criteria, confirmed by Structured Clinical Interview for DSM-5 - Patient version (SCID-I-P) There will be 80 enrolled subjects (40 for each center). Subjects will be randomly assigned to the SoCIAL or the TAU group. Overall, 40 patients (20 for each center) will be assigned to SoCIAL and 40 (20 for each center) to TAU. Subjects will be evaluated before the programme starts and as soon as it ends. Following eligibility and baseline assessment participants are randomly assigned to either an intervention or control (TAU) group using an Excel spreadsheet. The investigators stratified randomisation considering age, gender and years of education.
The study will have a total length of 12 months, divided in these phases:
- Operators will be trained in evaluating neurocognitive functions, social cognition, functional capacity and real life functioning ; 2) Operators will also be trained in SoCIAL programme's practice; 3) Recruitment of patients and randomization (in both centers); 4) assessment of neurocognitive functions, social cognition, functional capacity and real life functioning for enrolled patients; 5) implementation of interventions; 6) assessment of neurocognitive functions, social cognition, functional capacity and real life functioning in subjects at the end of the programme for both group (SoCIAL programme vs TAU); 7) final evaluation and data analysis.
DATA ANALYSIS:
An assessment of the statistical power of this study was performed by an effect size's analysis of the studies included in a recent meta-analysis (Kurtz and Richardson 2012). The results are very satisfactory: with a statistical power ≥0.8 and a significance level of <.05, our study needs a total sample of 68 subjects as against the 80 subjects that the investigators are recruiting.
Neuropsychological, psychopathological and cognitive functioning evaluations will be conducted pre and post interventions. Statistical analysis will be conducted by ANOVA for repeated measures, focusing on the role played by different types of interventions in each group regarding the aforementioned domains.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: SoCIAL Group Subjects will conduct SoCIAL programme once a week, for a total of 10 weeks. Every session consists of two different modules: 1) a training programme that helps patients recognize emotions and important social signals (such as facial expressions and prosody) and develop strategy focused on the Theory of Mind; 2) a training in narrative enhancement. Time of administration for both modules is 30 minutes; the operator, however, can choose to focus the session on one module rather than the other, based on the subject's specific needs. |
Behavioral: Social Skills and Neurocognitive Individualized Training (SoCIAL)
SoCIAL is composed of two modules:
Social Cognition Training The Emotions recognition training will train the subject's ability in discriminating between different emotional states through photos and videos. The Theory of Mind (ToM) training will help subjects discriminate between emotional expressions in social contexts and understand other people's mental state with videos that display actors expressing several emotional states. More details in Palumbo et al., 2017.
Narrative Enhancement Training The narrative enhancement training consists in story-telling exercises focused on improving the subject's capacity to comprehend his/her emotional experience.
Other: Treatmment-as-usual
Subjects that will be randomized in this group will receive their treatment as usual for the whole length of the study. TAU includes all the psychiatric therapies (pharmacological, psychological, occupational etc) that subjects may have begun before study's enrollment.
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| Active Comparator: Control Group - Treatment-as-usual (TAU) Subjects that will be randomized in this group will receive their treatment as usual for the whole length of the study (10 weeks). TAU includes all the psychiatric therapies (pharmacological, psychological, occupational etc) that subjects may have begun before study's enrollment. |
Other: Treatmment-as-usual
Subjects that will be randomized in this group will receive their treatment as usual for the whole length of the study. TAU includes all the psychiatric therapies (pharmacological, psychological, occupational etc) that subjects may have begun before study's enrollment.
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Outcome Measures
Primary Outcome Measures
- Positive Symptoms [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
The Positive and Negative Syndrome Scale (PANSS, administration time = 30') will be used for the evaluation of positive symptoms. The PANSS is a semistructured interview composed of 30 items divided in three subscales, namely positive symptoms, negative symptoms, and general psychopathology. Each item is accompanied by a specific definition and by detailed anchoring criteria for each rating point, ranging from "absent" (1) to "severe" (7). According to the five-factor model proposed by Wallwork et al. (2012), the investigators will calculate the positive dimension by summing the scores on the items "Delusions" (P1), "Hallucinatory behavior" (P3), "Grandiosity" (P5) and "Unusual thought content (G9).
- Negative Symptoms [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
The Positive and Negative Syndrome Scale (PANSS, administration time = 30') will be used for the evaluation of positive symptoms. The PANSS is a semistructured interview composed of 30 items divided in three subscales, namely positive symptoms, negative symptoms, and general psychopathology. Each item is accompanied by a specific definition and by detailed anchoring criteria for each rating point, ranging from "absent" (1) to "severe" (7). According to the five-factor model proposed by Wallwork et al. (2012), the investigators will calculate the negative dimension by summing the scores on the items "Blunted Affect" (N1), "Emotional Withdrawal" (N2), "Poor Rapport" (N3), "Passive/Apathetic Social Withdrawal" (N4) and "Lack of spontaneity" (N6).
- Disorganization [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
The Positive and Negative Syndrome Scale (PANSS, administration time = 30') will be used for the evaluation of the disorganized symptoms. The PANSS is a semistructured interview composed of 30 items divided in three subscales, namely positive symptoms, negative symptoms, and general psychopathology. Each item is accompanied by a specific definition and by detailed anchoring criteria for each rating point, ranging from "absent" (1) to "severe" (7). According to the five-factor model proposed by Wallwork et al. (2012), the disorganization dimension will be calculated with three PANSS items: "Conceptual disorganization" (P2), "Difficulty in abstract thinking" (N5), and "Poor attention" (G11).
- Neurocognitive functions [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
Neurocognitive functions will be assessed using the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery (MCCB). This test includes items designed to evaluate six neurocognitive domains: a) processing speed; b) attention and vigilance; c) working memory; d) verbal learning and memory; e) visual learning and memory; f) reasoning and problem solving (administration time = 80'). 9 tests are included to measure neurocognitive domains (Category Fluency - Animal Naming; Brief Assessment of Cognition in Schizophrenia Symbol Coding; Trail Making Test - Part A; Continuous Performance Test - Identical Pairs; Wechsler Memory Scale Spatial Span; Letter-Number Span; Hopkins Verbal Learning Test - Revised; Brief Visuospatial Memory Test - Revised; Neuropsychological Assessment Battery - Mazes).
- Social cognition [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
Social cognition will be evaluated with the Mayer-Salovey-Caruso Emotional Intelligence Test included in the MCCB battery. To better assess social cognition (in addition to the MSCEIT) participants will undergo the Facial Emotional Identification Test (FEIT, administration time = 15') as well as the The Awareness of Social Inference Test (TASIT, evaluation time = 15'), a theory of the mind measure. The FEIT involves black-and-white photographs of 19 different individuals' faces (nine females/10 males) each depicting one of six different emotions (happiness, sadness, anger, surprise, fear, shame), shown one at a time for 15 s. After each stimulus, the participant should select which of the six emotions better describe the picture shown. The Awareness of Social Inference Test (TASIT) is a measure of basic emotion perception and complex social cognition. This test evaluates social cognition through videotaped vignettes designed to reflect the real life interactions.
- General cognitive abilities [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
General cognitive abilities will be evaluated with the Wechsler Adult Intelligence Scale-Revised (WAIS-R). This instrument is a revised form of the WAIS, a test that consisted of six verbal and five performance subtests. The WAIS-R uses four subtests (arithmetic, block design, picture completion, and information) to estimate verbal and performance IQ that are highly correlated with the full WAIS assessments.
- Functional ability [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
Functional ability will be assessed by the brief version of UCSD Performance-based Skills Assessment (UPSA-Brief, administration time = 15'), an instrument that measures participants' capacity to perform tasks similar to those encountered in daily life. The UPSA-B consists of two of the five subscales from the full UPSA: 1) Financial skills and 2) Communication skills. For the assessment of financial skills, participants are given fake money to handle (for example, they are asked to count them, make change, pay bills). Assessment of communication skills involves tasks in which participants use a disconnected landline telephone to simulate phone calls (e.g., doctor's office) to communicate requested or necessary information. The final score (calculated by summing the two subscales scores) ranges from 0 to 100, with higher scores indicating better functional capacity.
- Functioning [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
The Specific Level of Functioning Scale (SLOF, administration time = 20') will be used to evaluate the subject's functioning. This scale consists of 43 items and relies on data reported by an operator and on the direct observation of subejct's behaviors and functioning in several domains: (1) physical functioning, (2) personal care skills, (3) interpersonal relationships, (4) social acceptability, (5) activities of community living and (6) work skills.
- Quality of Life assessment [Pre (T0) and Post (T1) Intervention - 3 Months time frame]
Quality of life will be measured through the Quality of Life Scale (QOLS, administration time = 5'), a semi-structured interview, composed by 21 items, designed to assess four different areas of psychosocial adjustment, including Interpersonal Relations, Instrumental Role (e.g., work, school, homemaker), Intrapsychic Foundations (e.g., motivation, sense of purpose), and Common Objects and Activities (e.g., owning a watch, use of public transportation).
Eligibility Criteria
Criteria
Inclusion Criteria:
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Clinical diagnosis of schizophrenia/schizoaffective disorder according to DSM-V criteria, in stabilized phase of the disease;
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Illness duration <10 years;
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No major pharmacological treatment modifications in the last 3 months;
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Minimum 5 years of education.
Exclusion Criteria:
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Organic diseases that cause disabilities;
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Usual consumption of alcohol and drugs.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Department of Psychiatry - University of Campania "Luigi Vanvitelli" | Napoli | Italy | 80138 |
Sponsors and Collaborators
- University of Campania "Luigi Vanvitelli"
Investigators
- Study Director: Mario Maj, MD, PhD, Department of Psychiatry - University of Campania "Luigi Vanvitelli"
Study Documents (Full-Text)
None provided.More Information
Publications
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