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Simaan N, Bajo A, Reiter A, Wang L, Allen P, Fowler D. Lessons learned using the insertable robotic effector platform (IREP) for single port access surgery. J Robot Surg 2013; 7:235-40. [PMID: 27000919 DOI: 10.1007/s11701-013-0400-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 03/18/2013] [Indexed: 11/25/2022]
Abstract
This paper presents the preliminary evaluation of a robotic system for single port access surgery. This system may be deployed through a 15-mm incision. It deploys two surgical arms and a third arm manipulating a stereo-vision module that tracks instrument location. The paper presents the design of the robot along with experiments demonstrating the capabilities of this robot. The evaluation includes use of tasks from fundamentals of laparoscopic surgery, evaluation of telemanipulation accuracy, knot tying, and vision tracking of tools.
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Kim MM, Allen P, Gonzalez-Angulo AM, Woodward WA, Meric-Bernstam F, Buzdar AU, Hunt KK, Kuerer HM, Litton JK, Hortobagyi GN, Buchholz TA, Mittendorf EA. Pathologic complete response to neoadjuvant chemotherapy with trastuzumab predicts for improved survival in women with HER2-overexpressing breast cancer. Ann Oncol 2013; 24:1999-2004. [PMID: 23562929 DOI: 10.1093/annonc/mdt131] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND We sought to determine the prognostic value of pathologic response to neoadjuvant chemotherapy with concurrent trastuzumab. PATIENTS AND METHODS Two hundred and twenty-nine women with HER2/neu (HER2)-overexpressing breast cancer were treated with neoadjuvant chemotherapy plus trastuzumab between 2001 and 2008. Patients were grouped based on pathologic complete response (pCR, n = 114) or less than pCR (<pCR, n = 115); as well as by pathologic stage. Locoregional recurrence-free (LRFS), distant metastasis-free (DMFS), recurrence-free (RFS), and overall survival (OS) rates were compared. RESULTS The median follow-up was 63 (range 53-77) months. There was no difference in clinical stage between patients with pCR or <pCR. Compared with patients achieving <pCR, those with the pCR had higher 5-year rates of LRFS (100% versus 95%, P = 0.011), DMFS (96% versus 80%, P < 0.001), RFS (96% versus 79%, P < 0.001), and OS (95% versus 84%, P = 0.006). Improvements in RFS and OS were seen with decreasing post-treatment stage. Failure to achieve a pCR was the strongest independent predictor of recurrence (hazard ratio [HR] = 4.09, 95% confidence interval [CI]: 1.67-10.04, P = 0.002) and death (HR = 4.15, 95% CI: 1.39-12.38, P = 0.011). CONCLUSIONS pCR and lower pathologic stage after neoadjuvant chemotherapy with trastuzumab are the strongest predictors of recurrence and survival and are surrogates of the long-term outcome in patients with HER2-overexpressing disease.
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Martin-Santos R, Crippa JA, Batalla A, Bhattacharyya S, Atakan Z, Borgwardt S, Allen P, Seal M, Langohr K, Farré M, Zuardi AW, McGuire PK. Acute effects of a single, oral dose of d9-tetrahydrocannabinol (THC) and cannabidiol (CBD) administration in healthy volunteers. Curr Pharm Des 2013; 18:4966-79. [PMID: 22716148 DOI: 10.2174/138161212802884780] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 04/10/2012] [Indexed: 11/22/2022]
Abstract
RATIONALE Animal and humans studies suggest that the two main constituents of cannabis sativa, delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) have quite different acute effects. However, to date the two compounds have largely been studied separately. OBJECTIVE To evaluate and compare the acute pharmacological effects of both THC and CBD in the same human volunteers. METHODS A randomised, double-blind, cross-over, placebo controlled trial was conducted in 16 healthy male subjects. Oral THC 10 mg or CBD 600 mg or placebo was administered in three consecutive sessions, at one-month interval. Physiological measures and symptom ratings were assessed before, and at 1, 2 and 3 hours post drug administration. The area under the curve (AUC) between baseline and 3 hours, and the maximum absolute change from baseline at 2 hours were analysed by one-way repeated measures analysis of variance, with drug condition (THC or CBD or placebo) as the factor. RESULTS Relative to both placebo and CBD, administration of THC was associated with anxiety, dysphoria, positive psychotic symptoms, physical and mental sedation, subjective intoxication (AUC and effect at 2 hours: p < 0.01), an increase in heart rate (p < 0.05). There were no differences between CBD and placebo on any symptomatic, physiological variable. CONCLUSIONS In healthy volunteers, THC has marked acute behavioural and physiological effects, whereas CBD has proven to be safe and well tolerated.
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Hoehner C, Allen P, Marx C, Barlow C, Brownson R. Built environment features in the home and worksite neighborhood are associated with cardiorespiratory fitness. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kim M, Allen P, Gonzalez-Angulo A, Woodward W, Meric-Bernstam F, Buzdar A, Hunt K, Hortobagyi G, Buchholz T, Mittendorf E. Pathologic Complete Response to Neoadjuvant Chemotherapy Plus Trastuzumab Predicts for Improved Survival in Women With HER2-positive Breast Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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McAvoy S, Komaki R, Allen P, Rineer J, Liao Z, Chang J, Welsh J, Palmer M, Cox J, Gomez D. Reirradiation With Proton Beam Therapy or Intensity Modulated Radiation Therapy for Non-small Cell Lung Cancer: An Institutional Experience. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kim JH, Charkravarti A, Wang M, Aldape K, Sulman E, Bredel M, Hegi M, Gilbert M, Curran W, Werner-Wasik M, Mehta M, van den Bent MJ, Brandes AA, Taphoorn MJ, Kros JM, Kouwenhoven MC, Delattre JY, Bernsen HJ, Frenay M, Tijssen CC, Grisold W, Sipos L, Enting RH, French PJ, Dinjens WN, Vecht CJ, Allgeier A, Lacombe D, Gorlia T, Xuan KH, Chang JH, Oh MC, Kim EH, Kang SG, Cho J, Kim SH, Kim DS, Kim SH, Seo CO, Lee KS, Kim MM, Dabaja BS, Jeffrey Medeiros L, Allen P, Kim S, Fowler N, Peereboom DM, Seidman AD, Tabar V, Weil RJ, Thorsheim HR, Smith QR, Lockman PR, Steeg PS, Mallick S, Joshi N, Gandhi A, Jha P, Suri V, Julka PK, Sarkar C, Sharma D, Rath GK, Blumenthal DT, Talianski A, Fishniak L, Bokstein F, Taal W, Walenkamp AM, Taphoorn MJ, Beerepoot L, Hanse M, Buter J, Honkoop A, Groenewegen G, Boerman D, Jansen RL, van den Berkmortel FW, Brandsma D, Kros JM, Bromberg JE, van Heuvel I, Smits M, van der Holt B, Vernhout R, van den Bent M, Matienzo L, Batara J, Torcuator R, Yovino S, Balmanoukian A, Ye X, Campian J, Hess A, Fuchs E, Grossman SA, Leonard AK, Wolff J, Blanchard M, Laack N, Foote R, Brown P, Pan E, Yu D, Yue B, Potthast L, Smith P, Chowdhary S, Chamberlain M, Rockhill J, Sales L, Halasz L, Stewart R, Phillips M, Mathew M, Ott P, Rush S, Donahue B, Pavlick A, Golfinos J, Parker E, Huang P, Narayana A, Clark S, Carlson JA, Gaspar LE, Ney DE, Chen C, Kavanagh B, Damek DM, Martinez NL, DeAngelis LM, Abrey LE, Omuro A, Zhu JJ, Esquenazi-Levy Y, Friedman ER, Tandon N, Mathew M, Hitchen C, Dewyngaert K, Narayana A. CLIN-MEDICAL + RADIATION THERAPIES. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Parikh N, Likhacheva A, Pinnix C, Allen P, McAleer M, Chiu M, Sulman E, Mahajan A, Prabhu S, Chang E. Radiosurgery in Patients with “Radioresistant” Brain Metastases: Outcomes and Prognosis. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Welsh J, Kim E, Amini A, Allen P, Chang J, Komaki R, Nguyen N, Holt J, Erdman D, Stea B. Phase II Study of Erlotinib with Concurrent Whole-brain Radiation Therapy for Patients with Brain Metastases from Non-small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Fang L, Chang J, Komaki R, Liao Z, Kim E, Allen P, Lu C, Tsao A, Gillin M, Cox J. Failure Patterns and Toxicity After Chemoradiation with 74 Gy(RBE) for Non-small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Kim M, Dawood S, Allen P, Sahin A, Woodward W, Strom E, Hunt K, Meric-Bernstam F, Gonzalez-Angulo A, Buchholz T. Effect of Trastuzumab on Locoregional Recurrence in HER2-Positive Breast Cancer According to ER/PR Status. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Howes O, Bose S, Turkheimer F, Valli I, Egerton A, Stahl D, Valmaggia L, Allen P, Murray R, McGuire P. Progressive increase in striatal dopamine synthesis capacity as patients develop psychosis: a PET study. Mol Psychiatry 2011; 16:885-6. [PMID: 21358709 PMCID: PMC3662873 DOI: 10.1038/mp.2011.20] [Citation(s) in RCA: 200] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Schmid S, Allen P. Phase transitions in modulated fresnoite phases for piezoelectric applications. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311082122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Welsh J, Amini A, Kim ES, Allen P, Chang JY, Garland LL, Holt J, Erdman D, Komaki R, Stea B. Phase II study of erlotinib with concurrent whole-brain radiation therapy for patients with brain metastases from non-small cell lung cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Chang JY, Komaki R, Lu C, When HY, Allen P, Tsao AS, Gillin M, Mohan R, Cox JD. Phase II study of high-dose proton therapy with concurrent chemotherapy for unresectable stage III non-small cell lung cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Komaki R, Blumenschein GR, Wistuba II, Lee JJ, Allen P, Wei X, Welsh J, O'Reilly M, Herbst RS, Tang X, Meyn R, Liu D, Hong WK. Phase II trial of erlotinib and radiotherapy following chemoradiotherapy for patients with stage III non-small cell lung cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Dabaja BS, Phan J, Medeiros L, Chuang H, Fayad L, Hagemeister F, Shihadeh FD, Allen P, Rodriguez MA. Clinical implications of PET-negative residual disease at the completion of chemotherapy for diffuse large B-cell Lymphoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e18516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Allen P, Dabaja BS, Shihadeh FD, Nickerson P, Ballas LK. Hodgkin lymphoma: Use of modern combined modality therapy and its effect on the risk of second malignancies: The M. D. Anderson Experience over five decades. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e18529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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69
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Verma J, Jonasch E, Allen P, Tannir NM, Mahajan A. Tyrosine kinase inhibitors and development of brain metastasis in metastatic renal cell carcinoma: A retrospective review. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
340 Background: Tyrosine kinase inhibitors (TKIs) have been shown to improve overall survival (OS) in metastatic renal cell carcinoma (mRCC) but their effect on brain metastasis (BM) development is unclear. The purpose of our study is to evaluate the impact of TKIs on incidence of BM and OS in patients with mRCC. Methods: Searched the M. D. Anderson Cancer Center (MDACC) tumor registry for patients who presented with mRCC in 2002-2003 and 2006-2007 with no BM at initial staging. The following items were retrospectively collected: age, sex, Fuhrman grade, sites of disease, nephrectomy, systemic therapy including TKIs (sorafenib or sunitinib), MSKCC risk category, BM treatment, and vital status. Interaction between OS and incidence of BM and these variables was estimated using the Cox proportional hazards model. OS and incidence of BM were estimated using the Kaplan-Meier (K-M) method. Results: 338 patients were identified; 154 (46%) were treated with a TKI prior to BM, and 184 (54%) were not. There were no significant differences in age, histology, involved sites of disease other than lung, nephrectomy, or MSKCC risk category between the groups. A higher proportion of the nonTKI group received other systemic agents and had lung metastasis at initial staging (p=0.03). Median OS was longer in the TKI-treated group (25 months versus 12.1 months, p<0.0001). In Cox multivariate analysis, TKI treatment (HR=0.53, 95% CI 0.38-0.74, p<0.001) was associated with improved OS and lung/mediastinal involvement and ECOG performance status > 2 (HR 1.87, 95% CI 1.28-2.71, p=0.001) were associated with poor OS. Median OS after BM was not significantly different between TKI treated and untreated groups. 44 patients (13%) developed a BM, including 29 (15.8%) of the nonTKI group and 15 (9.7%) of the TKI group. In K-M analysis, the 5-year incidence of BM was 40% versus 17% respectively (logrank p<0.001). In Cox multivariate analysis, TKI treatment was associated with lower incidence of BM (HR=0.39, 95% CI 0.21-0.73, p=0.003). Lung metastasis increased the risk of BM (HR=9.61, 95% CI 2.97-31.1, p<0.001). Conclusions: Treatment with TKI agents reduces the incidence of BM in mRCC. Lung metastasis is a risk factor for BM development. No significant financial relationships to disclose.
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Hayes J, Stepanyan V, Allen P, O’Grady M, Kerry J. Evaluation of the effects of selected plant-derived nutraceuticals on the quality and shelf-life stability of raw and cooked pork sausages. Lebensm Wiss Technol 2011. [DOI: 10.1016/j.lwt.2010.05.020] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Fusar-Poli P, Howes OD, Allen P, Broome M, Valli I, Asselin MC, Montgomery AJ, Grasby PM, McGuire P. Abnormal prefrontal activation directly related to pre-synaptic striatal dopamine dysfunction in people at clinical high risk for psychosis. Mol Psychiatry 2011; 16:67-75. [PMID: 19949389 DOI: 10.1038/mp.2009.108] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Schizophrenia is characterized by altered prefrontal activity and elevated striatal dopaminergic function. To investigate the relationship between these abnormalities in the prodromal phase of the illness, we combined functional Magnetic Resonance Imaging and (18)F-Dopa Positron Emission Tomography. When performing a verbal fluency task, subjects with an At-Risk Mental State showed greater activation in the inferior frontal cortex than controls. Striatal dopamine function was greater in the At-Risk group than in controls. Within the At-Risk group, but not the control group, there was a direct correlation between the degree of left inferior frontal activation and the level of striatal dopamine function. Altered prefrontal activation in subjects with an At-Risk Mental State for psychosis is related to elevated striatal dopamine function. These changes reflect an increased vulnerability to psychosis and predate the first episode of frank psychosis.
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Zakrys-Waliwander PI, O'Sullivan MG, Walsh H, Allen P, Kerry JP. Sensory comparison of commercial low and high oxygen modified atmosphere packed sirloin beef steaks. Meat Sci 2010; 88:198-202. [PMID: 21237577 DOI: 10.1016/j.meatsci.2010.12.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2009] [Revised: 07/14/2010] [Accepted: 12/14/2010] [Indexed: 11/25/2022]
Abstract
The objectives of this study were to investigate the effects of using commercially low and high modified atmosphere packaging (MAP) on quality characteristics of sirloin beef steaks. Gas mixtures used included 80% O(2):20% CO(2) (O(2)80), 70% O(2)/30% CO(2) (O(2)70) and 50% O(2)/30% CO(2):20% N(2) (O(2)50) and for commercial packs O(2)75 ± 5%, CO(2)25 ± 5%, <5% N(2)-(O(2)Com). All samples were packed in similar tray and packaging film formats. The experimental parameters monitored included microbiological, physiochemical and sensory measurements (naïve assessors). Microbial counts did not exceed the recommended legal ranges over the storage period. However the numbers of LAB (lactic acid bacteria) were the highest for commercially-packed samples (O(2)Com) in comparison to laboratory packaged samples (O(2)80, O(2)70 and O(2)50). Commercially-packaged samples eventually spoiled due to the occurrence of off-flavours and off-odours and subsequently were the least acceptable to sensory naïve assessors.
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Connell PP, O'Neill EC, Fabinyi D, Islam FMA, Buttery R, McCombe M, Essex RW, Roufail E, Clark B, Chiu D, Campbell W, Allen P. Endogenous endophthalmitis: 10-year experience at a tertiary referral centre. Eye (Lond) 2010; 25:66-72. [PMID: 20966972 DOI: 10.1038/eye.2010.145] [Citation(s) in RCA: 148] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
PURPOSE Endogenous endophthalmitis (EE) is a sight-threatening emergency and the aetiology is often multifactorial. Delayed diagnosis may exacerbate the poor visual prognosis. We describe the management and visual outcomes of EE presenting to a tertiary referral centre. PATIENTS AND METHODS A prospective consecutive case series of 64 patients presenting with presumed EE from 1997 to 2007 to the Royal Victorian Eye and Ear Hospital were included. All data were collected in a standardized manner. Outcome measures included: visual acuity, microbial profiles, and vitrectomy rate. RESULTS In total, 64 cases of EE were identified over the study period with a mean age of 57.5 years, and 53.5% were male. Presenting acuities ranged from Snellen 6/6 to no perception of light (NPL). Identifiable risk factors were present in 78.1%, with the majority related to intravenous drug abuse. A 64.1% culture positivity rate was recorded. A vitrectomy rate of 57, 56, and 21% was recorded in documented bacterial, fungal, and no growth cases, respectively. Final Snellen acuities ranged from 6/6 to NPL. A total of 5 out of 64 eyes were enucleated, of which 3 identified Klebsiella species. Better visual outcome was documented in fungal cases. CONCLUSION EE is a serious ocular condition and has a varied aetiology. Visual outcomes are often poor, irrespective of the method of management. Fungal aetiology often confers a better prognosis, and vitrectomy is advocated for bacterial proven cases.
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Johns LC, Allen P, Valli I, Winton-Brown T, Broome M, Woolley J, Tabraham P, Day F, Howes O, Wykes T, McGuire P. Impaired verbal self-monitoring in individuals at high risk of psychosis. Psychol Med 2010; 40:1433-1442. [PMID: 19951449 DOI: 10.1017/s0033291709991991] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Cognitive models suggest that auditory verbal hallucinations arise through defective self-monitoring and the external attribution of inner speech. We used a paradigm that engages verbal self-monitoring (VSM) to examine whether this process is impaired in people experiencing prodromal symptoms, who have a very high risk of developing psychosis. METHOD We tested 31 individuals with an At-Risk Mental State (ARMS) and 31 healthy volunteers. Participants read single adjectives aloud while the source and pitch of the online auditory verbal feedback was manipulated, then immediately identified the source of the speech they heard (Self/Other/Unsure). Response choice and reaction time were recorded. RESULTS When reading aloud with distorted feedback of their own voice, ARMS participants made more errors than controls (misidentifications and unsure responses). ARMS participants misidentified the source of their speech as 'Other' when the level of acoustic distortion was severe, and misidentification errors were inversely related to reaction times. CONCLUSIONS Impaired VSM is evident in people with an ARMS, although the deficit seems to be less marked than in patients with schizophrenia. Follow-up of these participants may clarify the extent to which the severity of this impairment predicts the subsequent onset of psychosis and development of positive symptoms.
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Hayes J, Stepanyan V, O’Grady M, Allen P, Kerry J. Evaluation of the effects of selected phytochemicals on quality indices and sensorial properties of raw and cooked pork stored in different packaging systems. Meat Sci 2010; 85:289-96. [DOI: 10.1016/j.meatsci.2010.01.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 01/11/2010] [Accepted: 01/13/2010] [Indexed: 11/24/2022]
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