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Chia-Ying Kuo, Hung-Yi Chiou, Jia-Wei Lin, Shin-Han Tsai, Mau-Roung Lin, Yung-Hsiao Chiang, Chien-Min Lin, Shu-Fen Chu, Tsan-Hon Liou, Wen-Ta Chiu
Objective Bicycle riding is increasingly popular in Taiwan, but the number of cyclists injured and cyclists' death rate are both increasing. The aim of this study was to investigate the different characteristics and clinical outcomes of traffic-accident related head injuries to cyclists in urban and rural areas. Methods Records of 812 patients (533 urban and 279 rural) admitted to 27 hospitals in Taipei City and Hualien County as the result of a traumatic head injury while bicycling between 1998 and 2013 were retrieved for study...
October 18, 2016: Traffic Injury Prevention
Karen Tustin, Harlene Hayne
In two experiments, 3-year-old children were tested using an operant train procedure based on one originally developed by Carolyn Rovee-Collier. Children's behavioral and verbal recall of the event was assessed after a 24 hr (Experiment 1) and a 1-year delay (Experiment 2). After the 1-year delay, their mothers' verbal recall of the same event was also assessed. After both delays, children exhibited excellent nonverbal memory. Children also exhibited verbal, episodic memory of the same event, but their verbal reports were lean relative to those of their mothers, suggesting that the memories may be more vulnerable to forgetting over the long term...
November 2016: Developmental Psychobiology
Cong Lu, Zhe Shi, Xiuping Sun, Ruile Pan, Shanguang Chen, Yinghui Li, Lina Qu, Lihua Sun, Haixia Dang, Lanlan Bu, Lingling Chen, Xinmin Liu
ETHNOPHARMACOLOGICAL RELEVANCE: Kai Xin San (KXS), a traditional formula of Chinese medicine, has been used to treat dementia. AIM OF THE STUDY: The present study aimed to investigate its ameliorating effects on Aβ1-40-induced cognitive impairment in rats using a series of novel reward-directed instrumental learning tasks, and to determine its possible mechanism of action. MATERIALS AND METHODS: Rats were pretreated with KXS aqueous extract (0...
October 14, 2016: Journal of Ethnopharmacology
Siddharth Ramanan, Maxime Bertoux, Emma Flanagan, Muireann Irish, Olivier Piguet, John R Hodges, Michael Hornberger
OBJECTIVES: With comparable baseline performance on executive functions (EF) and memory between Alzheimer's disease (AD) and behavioral-variant frontotemporal dementia (bvFTD), it is currently unclear if both diseases can be distinguished longitudinally on these measures reliably. METHODS: A total of 111 participants (33 AD, 31 bvFTD, and 47 controls) were followed-up annually over a 4-year period and tested on measures of EF, memory, and orientation. Linear mixed-effect models were constructed using disease severity as a nuisance variable to examine profiles of neuropsychological performance decline...
October 18, 2016: Journal of the International Neuropsychological Society: JINS
Stephen W Marshall, Kevin M Guskiewicz, Viswanathan Shankar, Michael McCrea, Robert C Cantu
BACKGROUND: The epidemiology of sports-related concussion is not well-described in the literature. This paper presents a descriptive epidemiology of concussion in seven high school and collegiate sports. METHODS: We used the data from Concussion Prevention Initiative (CPI), which enrolled 8905 athletes at 210 high schools and 26 colleges in a prospective cohort study of 7 sports (football, men's and women's soccer, men's and women's lacrosse, and men's and women's ice hockey) between 1999 and 2001...
December 2015: Injury Epidemiology
Young Ho Park, Jeong-Youn Kim, SangHak Yi, Jae-Sung Lim, Jae-Won Jang, Chang-Hwan Im, SangYun Kim
Acute perturbation of the hippocampus, one of the connector hubs in the brain, is a key step in the pathophysiological cascade of transient global amnesia (TGA). We tested the hypothesis that network efficiency, meaning the efficiency of information exchange over a network, is impaired during the acute stage of TGA. Graph theoretical analysis was applied to resting-state EEG data collected from 21 patients with TGA. The EEG data were obtained twice, once during the acute stage (< 24 hours after symptom onset) and once during the resolved stage (> 2 months after symptom onset) of TGA...
2016: PloS One
K K Ganina, Yu L Dugina, E S Zhavbert, I A Ertuzun, O I Epshtein, V N Mukhin, I N Abdurasulova
AIM: On amnesia models induced by (icv) injection of β-amyloid fragment 25-35 peptide were evaluated antiamnestic actitity. MATERIAL AND METHODS: It was used of active antibody preparations (RA AT) to protein S100 (tenoten), to eNOS (impaza) and combinations (divaza) antiamnestic activity behavioral tests novel object conditioned response passive avoidance. RESULTS: Under the influence of RA AT S100 observed recovery of violation of the β-amyloid short-term memory (1 hour after the initial presentation of objects), and RA AT eNOS were more effective when tested 24 hours later...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
David Levitan, Yaihara Fortis-Santiago, Joshua A Figueroa, Emily E Reid, Takashi Yoshida, Nicholas C Barry, Abigail Russo, Donald B Katz
: In neuroscientists' attempts to understand the long-term storage of memory, topics of particular importance and interest are the cellular and system mechanisms of maintenance (e.g., those sensitive to ζ-inhibitory peptide, ZIP) and those induced by memory retrieval (i.e., reconsolidation). Much is known about each of these processes in isolation, but less is known concerning how they interact. It is known that ZIP sensitivity and memory retrieval share at least some molecular targets (e...
October 12, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Varinder Singh, Aditi Kahol, Inder Pal Singh, Isha Saraf, Richa Shri
ETHNOPHARMACOLOGICAL RELEVANCE: Ocimum species are traditionally used for the treatment of anxiety, nerve pain, convulsions and a variety of neurodegenerative disorders. The present study was undertaken to evaluate the anti-amnesic effect of O. basilicum L., O. sanctum L. and O. gratissimum L. extracts using in-vitro and in-vivo models. MATERIALS AND METHODS: In-vitro acetylcholinesterase (AChE) inhibitory and antioxidant activities of hydro-methanol extracts of plants were evaluated using Ellman and DPPH and FRAP assays, respectively...
October 7, 2016: Journal of Ethnopharmacology
Mohammad Nasehi, Parastu Morteza-Zadeh, Fatemeh Khakpai, Mohammad-Reza Zarrindast
In the current study, we examined the effect of bilateral intra-dorsal hippocampal (intra-CA1) microinjections of GABAA receptor agents on amnesia induced by a β-carboline alkaloid, harmane in mice. We used a single-trial step-down passive avoidance task to assess memory retention and then, open-field test to assess locomotor activity. The results indicated that post-training intra-CA1 injections of bicuculline - a GABAA receptor antagonist - had no significant effect, while muscimol (0.01 and 0.1μg/mouse) - a GABAA receptor agonist - impaired memory consolidation...
October 8, 2016: Neuroscience
Ranabir Pal, Ashok Munivenkatappa, Amit Agrawal, Geetha R Menon, Sagar Galwankar, P Rama Mohan, S Satish Kumar, B V Subrahmanyam
BACKGROUND: A reliable prediction of outcome for the victims of traumatic brain injury (TBI) on admission is possible from concurrent data analysis from any systematic real-time registry. OBJECTIVE: To determine the clinical relevance of the findings from our TBI registry to develop prognostic futuristic models with readily available traditional and novel predictors. MATERIALS AND METHODS: Prospectively collected data using predesigned pro forma were analyzed from the first phase of a trauma registry from a South Indian Trauma Centre, compatible with computerized management system at electronic data entry and web data entry interface on demographics, clinical, management, and discharge status...
July 2016: International Journal of Critical Illness and Injury Science
H J Markowitsch, A Staniloiu
Retrograde amnesia is described as condition which can occur after direct brain damage, but which occurs more frequently as a result of a psychiatric illness. In order to understand the amnesic condition, content-based divisions of memory are defined. The measurement of retrograde memory is discussed and the dichotomy between "organic" and "psychogenic" retrograde amnesia is questioned. Briefly, brain damage-related etiologies of retrograde amnesia are mentioned. The major portion of the review is devoted to dissociative amnesia (also named psychogenic or functional amnesia) and to the discussion of an overlap between psychogenic and "brain organic" forms of amnesia...
2017: Handbook of Clinical Neurology
Ian Brockington
Donkin psychoses are eclamptic psychoses without seizures. As symptomatic psychoses resulting from cerebral endothelial damage, they may explain the lucid intervals that sometimes occur between eclampsia and the eruption of psychosis. They have the same features as eclamptic psychoses, with onset during pregnancy or the early puerperium, especially in first-time mothers, a short duration and full recovery in most. The clinical picture is usually delirium, but mania is also seen, and some patients have retrograde amnesia or other cognitive defects...
October 8, 2016: Archives of Women's Mental Health
Priyanka Pahwa, Rajesh Kumar Goel
Asparagus adscendens Roxb. commonly known as safed musli and belonging to the Liliaceae family is cultivated mainly in Asian countries. In traditional medicine, safed musli is recommended as nerve tonic and remedy for memory impairment. The present study was aimed to evaluate nootropic and antiamnesic activities of Asparagus adscendens extract (AAE) using in silico and in vivo approach. Phytoconstituents of A. adscendens root reported in literature were subjected to in silico prediction using PASS and Pharmaexpert...
October 4, 2016: Chemico-biological Interactions
Farfalla Ribordy Lambert, Pierre Lavenex, Pamela Banta Lavenex
Allocentric spatial memory, "where" with respect to the surrounding environment, is one of the three fundamental components of episodic memory: what, where, when. Whereas basic allocentric spatial memory abilities are reliably observed in children after 2 years of age, coinciding with the offset of infantile amnesia, the resolution of allocentric spatial memory acquired over repeated trials improves from 2 to 4 years of age. Here, we first show that single-trial allocentric spatial memory performance improves in children from 3...
October 7, 2016: Developmental Psychobiology
Aurelija Juskenaite, Peggy Quinette, Mickaël Laisney, Marie-Loup Eustache, Béatrice Desgranges, Fausto Viader, Francis Eustache
Encounters with new people result in the extraction and storage in memory of both their external features, allowing us to recognize them later, and their internal traits, allowing us to better control our current interactions with them and anticipate our future ones. Just as we extract, encode, store, retrieve and update the representations of others so, too, do we process representations of ourselves. These representations, which rely on declarative memory, may be altered or cease to be accessible in amnesia...
2016: Frontiers in Human Neuroscience
Michael J Ellis, Dean M Cordingley, Sara Vis, Karen M Reimer, Jeff Leiter, Kelly Russell
OBJECTIVE There were 2 objectives of this study. The first objective was to identify clinical variables associated with vestibulo-ocular dysfunction (VOD) detected at initial consultation among pediatric patients with acute sports-related concussion (SRC) and postconcussion syndrome (PCS). The second objective was to reexamine the prevalence of VOD in this clinical cohort and evaluate the effect of VOD on length of recovery and the development of PCS. METHODS A retrospective review was conducted for all patients with acute SRC and PCS who were evaluated at a pediatric multidisciplinary concussion program from September 2013 to May 2015...
September 30, 2016: Journal of Neurosurgery. Pediatrics
Sung Ho Jang, Ji Hyun Yi, Hyeok Gyu Kwon
BACKGROUND: Depression, a prevalent psychiatric disorder, is associated with abnormality in the prefrontal cortex, particularly the left dorsolateral prefrontal cortex. In this study, we report on a patient with severe depression who showed injury of the dorsolateral prefronto-thalamic tract following mild traumatic brain injury, which was demonstrated by diffusion tensor tractography (DTT). METHODS AND RESULTS: A 63-year-old female patient suffered an in-car accident...
September 2016: Medicine (Baltimore)
Vedat Sar, Firdevs Alioğlu, Gamze Akyuz
Depersonalization (DEP) and derealization (DER) were examined among college students with and without borderline personality disorder (BPD) and/or dissociative disorders (DDs) by self-report and clinician assessment. The Steinberg Depersonalization and Derealization Questionnaires (SDEPQ and SDERQ), the Childhood Trauma Questionnaire, and the screening tool of the BPD section of the Structured Clinical Interview for DSM-IV (SCID-BPD) were administered to 1301 students. Those with BPD (n = 80) according to the SCID-BPD and 111 non-BPD controls were evaluated using the Structured Clinical Interview for DSM-IV Dissociative Disorders (SCID-D) by a psychiatrist blind to the diagnosis...
September 28, 2016: Journal of Trauma & Dissociation
Soumaya Boudokhane, Hichem Ben Brahim, Aymen Haj Salah, Houda Migaou, Anis Jellad, Zohra Ben Salah Frih
OBJECTIVE: To determine factors influencing long-term functional and professional outcomes in patients post severe traumatic brain injury (STBI). MATERIAL/PATIENTS AND METHODS: A descriptive analytical transversal and cross-sectional study involving patients with STBI dated more than 1 year and managed in rehabilitation department on an outpatient basis. Described parameters were: coma duration, post-traumatic amnesia duration (PTA), duration of hospitalization in intensive care unit, rehabilitation delay management, brain imaging findings, motor impairment, neuropsychological impairment assessed with Neurobehavioral Rating Scale-Revised (NRS-R), functional outcomes assessed with Functional Independence Measure (FIM) and disability assessed with Glasgow Outcome Scale (GOS)...
September 2016: Annals of Physical and Rehabilitation Medicine
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