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Diffusion vs. linear ballistic accumulation: Different models, different conclusions about the slope of the zROC in recognition memory

Publication date: October 2017 Source:Journal of Memory and Language, Volume 96 Author(s): Adam F. Osth, Beatrice Bora, Simon Dennis, Andrew Heathcote The relative amount of variability in memory strength for targets vs. lures in recognition memory is commonly measured using the receiver operating characteristic (ROC) procedure, in which participants are given either a bias manipulation or are instructed to give confidence ratings to probe items. A near universal finding is that targets have higher variability than lures. Ratcliff and Starns (2009) questioned the conclusions of the ROC procedure by demonstrating that accounting for decision noise within a response time model yields different conclusions about relative memory evidence than the ROC procedure yields. In an attempt to better understand the source of the discrepancy, we applied models that include different sources of decision noise, including both the diffusion decision model (DDM) and the linear ballistic accumulator (LBA) model, which either include or lack within-trial noise in evidence accumulation, and compared their estimates of the ratio of standard deviations to those from ROC analysis. Each method produced dramatically different estimates of the relative variability of target items, with the LBA even indicating equal variance in some cases. This stands in contrast to prior work suggesting that the DDM and LBA produce largely similar estimates of relevant model parameters, such as drift rate, boundary se...
Source: Journal of Memory and Language - Category: Speech-Language Pathology Source Type: research

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PPAR-γ Agonists and Their Role in Primary Cicatricial Alopecia. PPAR Res. 2017;2017:2501248 Authors: Harnchoowong S, Suchonwanit P Abstract Peroxisome proliferator-activated receptor γ (PPAR-γ) is a ligand-activated nuclear receptor that regulates the transcription of various genes. PPAR-γ plays roles in lipid homeostasis, sebocyte maturation, and peroxisome biogenesis and has shown anti-inflammatory effects. PPAR-γ is highly expressed in human sebaceous glands. Disruption of PPAR-γ is believed to be one of the mechanisms of primary cicatricial alopecia (PCA) pathoge...
Source: PPAR Research - Category: Genetics & Stem Cells Tags: PPAR Res Source Type: research
The president scored a 30 out of 30 on a cognitive assessment during his physical last week, his doctor told reporters
Source: Health News: CBSNews.com - Category: Consumer Health News Source Type: news
Conclusions: The hierarchical structure of the CART model provides a diagnostic algorithm linked with the risk of malignancy at every step of the procedure. It also provides guidance on the use of ancillary examinations as it goes by simple, human understandable rules.Acta Cytologica
Source: Acta Cytologica - Category: Cytology Source Type: research
This article is protected by copyright. All rights reserved
Source: Journal of Cellular Physiology - Category: Cytology Authors: Tags: ORIGINAL RESEARCH ARTICLE Source Type: research
The risk for type 2 diabetes was reduced by almost half throughout their childbearing years for women who breastfed for 6 months or longer, a study found.Medscape Medical News
Source: Medscape Medical News Headlines - Category: Consumer Health News Tags: Ob/Gyn & Women ' s Health News Source Type: news
WASHINGTON (Reuters) - U.S. President Donald Trump passed a cognitive test and is in overall excellent health, but needs to lose 10 to 15 pounds (4.5 to 6.8 kg) by eating better and starting to exercise, the White House physician said on Tuesday.
Source: Reuters: Health - Category: Consumer Health News Tags: healthNews Source Type: news
CONCLUSION: Our findings do not support epicardial fat's beneficial effects on bone health, whereas general adiposity has an osteotropic effect. The association between EFT and BMC is through common genetic component factors. PMID: 29332861 [PubMed - as supplied by publisher]
Source: Journal of Epidemiology - Category: Epidemiology Tags: J Epidemiol Source Type: research
CONCLUSIONS: Affected infants and toddlers in Fukushima suggested some growth disturbances and early adiposity rebound, which can cause obesity. The future growth of children affected by disasters should be followed carefully. PMID: 29332860 [PubMed - as supplied by publisher]
Source: Journal of Epidemiology - Category: Epidemiology Tags: J Epidemiol Source Type: research
Los Angeles-based model Lauren Wasser, 29, lost her right leg in 2012 and had the other one amputated last week. 'Life is about to be so different, again!' she said in a post before the surgery.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news
In this study, eleven volunteers (aged 37-52) took six early-afternoon naps (30 minutes) in their occupational workplace, under two different conditions: control 'Naps' or 'Naps + RT' with a within-subjects design. Our results demonstrate that adding RT to naps changes sleep architecture, with a significant increase in the TST, mostly due to N2 sleep stage (and N3, to a lesser extent). Therefore, the deepening of short naps with RT involving hypnosis might be a successful non-pharmacological way to extend sleep duration and to deepen sleep in occupational settings. PMID: 29332862 [PubMed - as supplied by publisher]
Source: Industrial Health - Category: Occupational Health Tags: Ind Health Source Type: research
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