Displaying publications 21 - 40 of 46 in total

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  1. Oh TM, McCarthy RA, McKenna PJ
    Neurocase, 2002;8(3):233-44.
    PMID: 12119320
    It has been suggested that formal thought disorder, the incoherent speech of schizophrenia, may involve a language disturbance among other abnormalities, or even be a form of dysphasia. Six patients with and seven without formal thought disorder were evaluated on an aphasia test battery. Spontaneous speech was also analysed using Brief Syntactic Analysis. Poor performance on the aphasia test battery was found to be associated with general intellectual impairment but not with formal thought disorder. Naming was preserved in both groups. Patients with formal thought disorder, but not those without, produced semantic errors in their spontaneous speech, and these were unrelated to general intellectual status. The disorder of language in formal thought disorder thus appears to be one of expressive semantic abnormality, which, however, spares naming. Further analysis of two intellectually preserved patients suggested that formal thought disorder may be associated with an additional difficulty in constructing an appropriate model for generating one's own speech.
    Matched MeSH terms: Schizophrenic Psychology*
  2. Alhadidi M, Abdullah KL, Tang LY, Danaee M, Al Hadid LAR
    Perspect Psychiatr Care, 2021 Jan;57(1):225-234.
    PMID: 32502330 DOI: 10.1111/ppc.12553
    PURPOSE: This study assessed the level of knowledge about schizophrenia, insight into illness, and internalized stigma and their associated factors among patients with schizophrenia in Jordan.

    DESIGN AND METHODS: A cross-sectional survey was conducted on 135 patients diagnosed with schizophrenia, who had been admitted to the largest psychiatric hospital in Jordan.

    FINDINGS: The participants had a low level of knowledge, insight, and a high level of internalized stigma. No correlation was found between these variables. Meanwhile, the educational level and vacation were found to be predictors of knowledge.

    PRACTICE IMPLICATIONS: This can help psychiatric nurses to identify which area needs to be improved to ensure the best service and care is provided to patients diagnosed with schizophrenia.

    Matched MeSH terms: Schizophrenic Psychology*
  3. Feroz FS, Leicht G, Rauh J, Mulert C
    Brain Topogr, 2019 01;32(1):161-177.
    PMID: 30288663 DOI: 10.1007/s10548-018-0677-0
    This paper aims to investigate the temporal dynamics within the dorsal anterior cingulate cortex (dACC) and the rostral-ventral (rv) ACC during the interaction of emotional valence and arousal with cognitive control in patients with Schizophrenia (SZ). Although cognitive deficits in SZ are highly relevant and emotional disturbances are common, the temporal relationship of brain regions involved in the interaction of emotional and cognitive processing in SZ is yet to be determined. To address this issue, the reaction time (RT), event-related potential (ERP) and temporal dynamics of the dACC and rvACC activity were compared between SZ subjects and healthy controls (HC), using a modified emotional Stroop experiment (with factors namely congruence, arousal and valence). EEG was recorded with 64 channels and source localisation was performed using the sLORETA software package. We observed slower initial increase and lower peaks of time course activity within the dACC and rvACC in the SZ group. In this particular group, the dACC activity during late negativity was negatively correlated with a significantly higher RT in the high arousal conflict condition. In contrast to HC subjects, at the N450 window, there was no significant valence (ERP and rvACC ROI) modulation effect in the SZ subjects. Using high density EEG and source localisation, it was possible to distinguish various disturbances within the dACC and rvACC in patients with SZ, during emotion-cognition processing.
    Matched MeSH terms: Schizophrenic Psychology*
  4. Varma SL, Sharma I
    Br J Psychiatry, 1993 May;162:672-8.
    PMID: 8149120
    First-degree relatives (FDRs) of 162 schizophrenic and 106 control probands were investigated [corrected]. Psychiatric morbidity was present in 34.8% of FDRs of schizophrenic probands and in 9.2% of FDRs of controls. There was significantly more psychiatric illness in the siblings and parents than in the offspring of both schizophrenic and control subjects. The morbidity risks for schizoid-schizotypal personality disorders, cannabis-use disorder and paranoid personality disorder were significantly higher in the FDRs of schizophrenic patients than in those of controls, suggesting a biological relationship.
    Matched MeSH terms: Schizophrenic Psychology*
  5. Zhang Y, Kuhn SK, Jobson L, Haque S
    BMC Psychiatry, 2019 11 14;19(1):361.
    PMID: 31727046 DOI: 10.1186/s12888-019-2346-6
    BACKGROUND: Patients suffering from schizophrenia spectrum disorders demonstrate various cognitive deficiencies, the most pertinent one being impairment in autobiographical memory. This paper reviews quantitative research investigating deficits in the content, and characteristics, of autobiographical memories in individuals with schizophrenia. It also examines if the method used to activate autobiographical memories influenced the results and which theoretical accounts were proposed to explain the defective recall of autobiographical memories in patients with schizophrenia.

    METHODS: PsycINFO, Web of Science, and PubMed databases were searched for articles published between January 1998 and December 2018. Fifty-seven studies met the inclusion criteria. All studies implemented the generative retrieval strategy by inducing memories through cue words or pictures, the life-stage method, or open-ended retrieval method. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement guidelines were followed for this review.

    RESULTS: Most studies reported that patients with schizophrenia retrieve less specific autobiographical memories when compared to a healthy control group, while only three studies indicated that both groups performed similarly on memory specificity. Patients with schizophrenia also exhibited earlier reminiscence bumps than those for healthy controls. The relationship between comorbid depression and autobiographical memory specificity appeared to be independent because patients' memory specificity improved through intervention, but their level of depression remained unchanged. The U-shaped retrieval pattern for memory specificity was not consistent. Both the connection between the history of attempted suicide and autobiographical memory specificity, and the relationship between psychotic symptoms and autobiographical memory specificity, remain inconclusive. Patients' memory specificity and coherence improved through cognitive training.

    CONCLUSIONS: The overgeneral recall of autobiographical memory by patients with schizophrenia could be attributed to working memory, the disturbing concept of self, and the cuing method implemented. The earlier reminiscence bump for patients with schizophrenia may be explained by the premature closure of the identity formation process due to the emergence of psychotic symptoms during early adulthood. Protocol developed for this review was registered in PROSPERO (registration no: CRD42017062643).

    Matched MeSH terms: Schizophrenic Psychology*
  6. Norlelawati AT, Kartini A, Norsidah K, Ramli M, Wan Azizi WS, Tariq AR
    Asia Pac Psychiatry, 2015 Mar;7(1):45-53.
    PMID: 23857669 DOI: 10.1111/appy.12089
    INTRODUCTION: The present study investigated the relationship between psychological symptoms and psychosocial function and the role of relevant sociodemographic data and antipsychotic use in the prediction of psychosocial function among multiracial schizophrenia outpatients in Malaysia.
    METHODS: A total of 223 participants were recruited in this cross-sectional study conducted from December 2010 to April 2011. Psychological symptoms were assessed using the Positive and Negative Syndrome Scale whilst the psychosocial function was assessed using the Personal and Social Performance scale. Sociodemographic and treatment variables were gathered through interview or review of the medical records.
    RESULTS: All dimensions of psychosocial functions were inversely correlated with Positive and Negative Syndrome Scale sub-domains. Only the disorganization sub-domain significantly predicts all dimensions of psychosocial function. For social data, body mass index and employment status were significant predictors of all dimensions of psychosocial functions. Typical antipsychotics significantly predict social function negatively as compared to sulpiride (β = -0.152, P = 0.028).
    DISCUSSION: We found that the relationship between psychological symptoms and psychosocial functions were relatively consistent with the findings from the Caucasian population. Additionally, disorganization was the only significant predictor of all dimensions of psychosocial functions. This further emphasized the importance of cognition in psychosocial function. The roles of sulpiride, body mass index and employment status as predictors of psychosocial function were also discussed.
    KEYWORDS: antipsychotics; psychosocial function; schizophrenia; symptoms
    Study site: Psychiatric clinic, Hospital Tengku Ampuan Afzan, Kuantan, Pahang, Malaysia
    Matched MeSH terms: Schizophrenic Psychology*
  7. Wahab S, Zakaria MN, Sidek D, Abdul Rahman AH, Shah SA, Abdul Wahab NA
    Psychiatry Res, 2015 Aug 30;228(3):462-7.
    PMID: 26142835 DOI: 10.1016/j.psychres.2015.06.014
    The Psychotic Symptom Rating Scales (PSYRATS) is the most widely used validated scale to measure the specific symptoms of auditory hallucination and delusion. The aim of this study was to validate and to examine the psychometric properties of the auditory hallucination component of the Malay PSYRATS (MyPSYRATS). The research was done in the Universiti Kebangsaan Malaysia Medical Center (UKMMC) among 51 schizophrenia inpatients and outpatients who had experienced or reported verbal auditory hallucination. The psychometric properties of MyPSYRATS (auditory hallucination) were studied and a comparison was made between the psychometric properties obtained and the Positive and Negative Syndrome Scale (PANSS). The internal consistency of MyPSYRATS was good as revealed by Cronbach's alpha value. Factor analysis replicated three components (emotional, cognitive, and physical) similar to the factorial structure of the original auditory hallucination scale. However, two items were regrouped under the emotional component. Spearman's rank-order correlation showed a significant positive relationship between the total score of auditory hallucinations and PANSS auditory hallucinations item (P3). In conclusion, the auditory hallucination domain of MyPSYRATS is a reliable and valid assessment tool for further clinical applications.

    Study site: Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM)
    Matched MeSH terms: Schizophrenic Psychology*
  8. Munikanan T, Midin M, Daud TIM, Rahim RA, Bakar AKA, Jaafar NRN, et al.
    Compr Psychiatry, 2017 05;75:94-102.
    PMID: 28342379 DOI: 10.1016/j.comppsych.2017.02.009
    OBJECTIVE: To understand the needs of patients with schizophrenia for recovery, this study examined the type and level of social support and its association with quality of life (QOL) among this group of patients in the city of Kuala Lumpur.

    METHOD: A cross-sectional study was conducted on 160 individuals with schizophrenia receiving community psychiatric services in Hospital Kuala Lumpur (HKL). The WHOQOL-BREF, Brief Psychiatric Rating Scale (BPRS) and Multidimensional Scale of Perceived Social Support (MSPSS) were used to assess QOL, severity of symptoms and social support, respectively. The study respondents were predominantly Malay, aged less than 40, males, single, unmarried, had lower education levels and unemployed.

    RESULTS: About 72% of the respondents had poor perceived social support, with support from significant others being the lowest, followed by friends and family. From multiple regression analysis, social support (total, friend and family) significantly predicted better QOL in all domains; [B=0.315 (p<0.001), B=0.670 (p<0.001), B=0.257 (p<0.031)] respectively in Physical Domain; [B=0.491 (p<0.001), B=0.735 (p<0.001), B=0.631 (p<0.001)] in Psychological Domain; [B=1.065 (p<0.001), B=0.670 (p<0.017), B=2.076 (p<0.001)] in Social Domain and; [B=0.652 (p<0.001), B=1.199 (p<0.001), B=0.678 (p<0.001)] in Environmental Domain. Being married and having shorter duration of illness, lower BPRS (total) scores, female gender and smoking, were also found to significantly predict higher QOL.

    CONCLUSION: Social support is an important missing component among people with schizophrenia who are already receiving formal psychiatric services in Malaysia.

    Matched MeSH terms: Schizophrenic Psychology*
  9. Byrne EM, Psychiatric Genetics Consortium Major Depressive Disorder Working Group, Raheja UK, Stephens SH, Heath AC, Madden PA, et al.
    J Clin Psychiatry, 2015 Feb;76(2):128-34.
    PMID: 25562672 DOI: 10.4088/JCP.14m08981
    OBJECTIVE: To test common genetic variants for association with seasonality (seasonal changes in mood and behavior) and to investigate whether there are shared genetic risk factors between psychiatric disorders and seasonality.

    METHOD: Genome-wide association studies (GWASs) were conducted in Australian (between 1988 and 1990 and between 2010 and 2013) and Amish (between May 2010 and December 2011) samples in whom the Seasonal Pattern Assessment Questionnaire (SPAQ) had been administered, and the results were meta-analyzed in a total sample of 4,156 individuals. Genetic risk scores based on results from prior large GWAS studies of bipolar disorder, major depressive disorder (MDD), and schizophrenia were calculated to test for overlap in risk between psychiatric disorders and seasonality.

    RESULTS: The most significant association was with rs11825064 (P = 1.7 × 10⁻⁶, β = 0.64, standard error = 0.13), an intergenic single nucleotide polymorphism (SNP) found on chromosome 11. The evidence for overlap in risk factors was strongest for schizophrenia and seasonality, with the schizophrenia genetic profile scores explaining 3% of the variance in log-transformed global seasonality scores. Bipolar disorder genetic profile scores were also associated with seasonality, although at much weaker levels (minimum P value = 3.4 × 10⁻³), and no evidence for overlap in risk was detected between MDD and seasonality.

    CONCLUSIONS: Common SNPs of large effect most likely do not exist for seasonality in the populations examined. As expected, there were overlapping genetic risk factors for bipolar disorder (but not MDD) with seasonality. Unexpectedly, the risk for schizophrenia and seasonality had the largest overlap, an unprecedented finding that requires replication in other populations and has potential clinical implications considering overlapping cognitive deficits in seasonal affective disorders and schizophrenia.

    Matched MeSH terms: Schizophrenic Psychology*
  10. Othman SS, Abdul Kadir K, Hassan J, Hong GK, Singh BB, Raman N
    Aust N Z J Psychiatry, 1994 Dec;28(4):620-4.
    PMID: 7794205
    The thyroid status of 249 patients with chronic schizophrenia (males = 136, females = 113) with a median age of 36 years (range: 16 to 58 years) and a median duration of hospitalisation of 10 years (range: 1 to 30 years) was assessed. Thyroid antibodies (TAb) were found in 51 patients (20%). In female patients, 32 (28%) were TAb positive compared to 13% (n = 152, p = 0.01) in healthy female blood donors. In male patients, the prevalence of TAb was 14% compared to 7% (n = 449, p = 0.01) in healthy male blood donors. Of the 183 patients who had thyroid hormone measurements, 60% had normal test, 5% had elevated TSH and 17% had low TSH. The T4, FT41 and FT31 were significantly lower in those with low or high TSH (p < 0.001) compared to those with normal TSH. Of the 143 patients with normal TSH, 33 (23%) had low T3. In conclusion, there is a spectrum of thyroid function test abnormalities in chronic schizophrenia; this may be related to an abnormality in the central regulation of the hypothalamo-pituitary thyroid axis as well as at the peripheral level. However the association between chronic schizophrenia and the presence of thyroid antibodies, and the clinical relevance of these biochemical abnormalities, are still not clear.
    Matched MeSH terms: Schizophrenic Psychology*
  11. Zain MA, Rouhollahi E, Pandy V, Mani V, Majeed ABA, Wong WF, et al.
    Exp Anim, 2018 Nov 01;67(4):421-429.
    PMID: 29731492 DOI: 10.1538/expanim.18-0006
    Phencyclidine (PCP) has been used to model cognitive deficits related to schizophrenia in rats and mice. However, the model in mice is not consistent in terms of the PCP effective dose reported. Furthermore, most of the previous studies in mice excluded the presence of drug washout period in the regime. Thus, we aimed to optimize the dose of PCP in producing robust cognitive deficits by implementing it in a PCP regime which incorporates a drug washout period. The regimen used was 7 days' daily injection of PCP or saline for treatment and vehicle groups, respectively; followed by 24 h drug washout period. After the washout period, the test mice were tested in water maze (5 days of acquisition + 1 day of probe trial) for assessment of spatial learning and memory. Initially, we investigated the effect of PCP at 2mg/kg, however, no apparent impairment in spatial learning and memory was observed. Subsequently, we examined the effect of higher doses of PCP at 5, 10 and 20 mg/kg. We found that the PCP at 10 mg/kg produced a significant increase in "latency to reach the platform" during the acquisition days and a significant increase in "latency of first entry to previous platform" during the probe day. There was no significant change observed in "swim speed" during the test days. Thus, we concluded that PCP at 10 mg/kg produced robust deficits in spatial learning and memory without being confounded by motor disturbances.
    Matched MeSH terms: Schizophrenic Psychology*
  12. Ain MK, Rosdinom R, Raynuha M
    Int Psychogeriatr, 2015 Sep;27(9):1573-5.
    PMID: 25794136 DOI: 10.1017/S1041610215000332
    We report a Malay man, with underlying chronic medical illnesses, presenting with positive symptoms of schizophrenia, including Capgras syndrome (CS) at the age of 73. Physical examination and blood investigations were normal and brain CT scan showed age-related cerebral atrophy. Neuropsychological assessment showed probable right hemisphere lesions but relatively intact memory and intellectual functions. Several neuroleptics including depot injections were tried but ineffective. Positive symptoms including CS eventually improved with clozapine before his death from myocardial infarction. This case report highlights the uncommon occurrence of CS in treatment resistant schizophrenia (TRS) of very late onset and its treatment challenges.
    Matched MeSH terms: Schizophrenic Psychology
  13. Razali MS, Yahya H
    Acta Psychiatr Scand, 1995 May;91(5):331-5.
    PMID: 7639089
    The compliance with drug regimens and follow-up visits of 225 known cases of relapsed schizophrenia was assessed. About 27% of the patients met the criteria for good compliance. The compliance was found to be significantly related to the patients' view of usefulness of the medication, treatment duration of less than 5 years, dosage schedule of once or twice per day and the supervision of medication at home. Patients with poor compliance who were prescribed drug dosage of not more than twice per day throughout follow-up and underwent counseling to enhance treatment compliance had a significantly lower relapse rate than the controlled group at the end of 1 year of follow-up. The importance of family support and understanding patients' cultural background in ensuring good compliance was highlighted.
    Matched MeSH terms: Schizophrenic Psychology
  14. Kua EH, Tsoi WF
    Acta Psychiatr Scand, 1985 Mar;71(3):227-9.
    PMID: 3984765
    In a study of suicide in Singapore in 1980 there were 230 cases and the suicide rate for the general population was 9.5 per 100,000. The age-specific rates increased steeply after 50 years and there was a male preponderance especially in the age group 60 years and over. Comparing the three major ethnic groups in Singapore, the highest rate was seen in the Indians and Chinese, whereas the Malays had the lowest. Amongst the suicides there were 59 (25.7%) with mental illness, mainly schizophrenia, and they were of a younger age group, 20-39 years. The commonest method of suicide was jumping from high-rise flats.
    Matched MeSH terms: Schizophrenic Psychology
  15. Chow TJ, Tee SF, Loh SY, Yong HS, Abu Bakar AK, Song SL, et al.
    Asian J Psychiatr, 2018 Aug;36:17-18.
    PMID: 29864676 DOI: 10.1016/j.ajp.2018.05.025
    Matched MeSH terms: Schizophrenic Psychology
  16. Barrett RJ
    Commun Med, 2004;1(1):25-34.
    PMID: 16808686
    An analysis is presented of psychiatric research interviews conducted among the Iban, a longhouse dwelling people of Sarawak, Malaysia. It draws on transcripts of interviews recorded in the course of carrying out research into schizophrenia in this group. The article examines three different interview spaces within the longhouse--public, family, and private--in order to explore the interplay between ethnographic context and interview conversation. The public setting is notable for the number of relatives who join in and transform the communication from dyadic to collective interlocution; the role of repetition in recruiting them into the conversation is explored. Indirect contrast is the private space, which allows for a level of confidentiality commensurate with Western psychiatric research practice. Intermediate between the two is the family space. The communicative forms that correspond to these settings influence the way symptoms of schizophrenia are experienced and expressed in the Iban. Implications for the practice of psychiatry cross-culturally are examined.
    Matched MeSH terms: Schizophrenic Psychology
  17. Tan HJR
    BMJ Case Rep, 2017 Sep 23;2017.
    PMID: 28942410 DOI: 10.1136/bcr-2017-221518
    This was about a case of a patient requiring admission to psychiatry ward twice a year for relapse schizophrenia due to medication non-compliance. Medication adherence was previously monitored by her husband. However, following the death of her husband, she stopped treatment. The lack of insight and poor family support further contributed to her relapse. She presented with positive and negative symptoms of schizophrenia during her relapse, neglecting her hygiene and oral intake. She was also found to have anaemia as a result of poor diet when she was in relapse. Community psychiatry services had attempted to ensure compliance with postdischarge plan but failed as patient was not present every home visits. Supervised treatment in outpatient for schizophrenia (STOPS) provided an alternative method to ensure compliance in this patient. Patient has remained in remission for 1 year since the use of STOPS.
    Matched MeSH terms: Schizophrenic Psychology
  18. Tan CH, Chiang PC, Ng LL, Chee KT
    Br J Psychiatry, 1994 Sep;165(3):381-3.
    PMID: 7994510
    BACKGROUND: The objective was to investigate the occurrence and characteristics of oculogyric spasm (OGS) in an Asian country.

    METHOD: All 2035 Asian (88% Chinese, 7% Malays and 5% Indonesians) psychiatric in-patients in the state psychiatric hospital in Singapore were surveyed for occurrence of oculogyric spasm (OGS) over a two-month period.

    RESULTS: Thirty-four patients (1.7%) developed OGS (53% male and 47% female). All the 34 patients had been on maintenance antipsychotic drugs for more than five months. Eighteen patients had recurrent attacks. The mean chlorpromazine equivalent daily dose for those patients with recurrent OGS was 511 mg. This was significantly higher (P < 0.05) than the 277 mg daily dose received by those without recurrent OGS. Most (68%) of the attacks occurred between 1400-2000 h suggesting that OGS may have a diurnal variation.

    CONCLUSIONS: OGS presenting as tardive dystonia may be due to a relative increase in cholinergic activity.

    Matched MeSH terms: Schizophrenic Psychology*
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