Abstract：
:Intraindividual variability (inconsistency) in reaction time (RT) latencies was investigated in a group of younger (M=25.46 years) and older (M=69.29 years) men. Both groups performed 300 trials in 2-, 4-, and 8-choice RT conditions where RTs for decision and motor components of the task were recorded separately. A dissociation was evident in that inconsistency was greater in older adults for decision RTs when task demands relating to the number of choices and fatigue arising from time-on-task were high. For younger persons, a weak trend toward greater inconsistency in motor RTs was evident. The results are consistent with accounts suggesting that inconsistency in neurobiological mechanisms increases with age, and that attentional lapses or fluctuations in executive control contribute to RT inconsistency.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Bunce D,MacDonald SW,Hultsch DFdoi
10.1016/j.bandc.2004.08.006subject
Has Abstractpub_date
2004-12-01 00:00:00pages
320-7issue
3eissn
0278-2626issn
1090-2147pii
S0278-2626(04)00201-5journal_volume
56pub_type
临床试验,杂志文章abstract：:Convergent evidence highlights the differential contributions of various regions of the prefrontal cortex in the service of cognitive control, but little is understood about how the brain determines and communicates the need to recruit cognitive control, and how such signals instigate the implementation of appropriate...
journal_title：Brain and cognition
pub_type： 杂志文章,评审
doi：10.1016/j.bandc.2004.09.016
更新日期：2004-11-01 00:00:00
abstract：:To help resolve the issue of whether developmental dyslexia (DD) is related to central auditory processing deficits or to language-specific processing deficits, we had nine dyslectic and nine nondyslectic right-handed undergraduate students perform linguistic (Experiment 1: phoneme identification) and nonlinguistic (E...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:Performance-based measures of hand preference have been developed as an objective method of examining handedness. Previous research using this method showed that both skill demands and the position of the object in working space affect preferential hand reaching. Specifically, preferred hand reaches predominated in le...
journal_title：Brain and cognition
pub_type： 临床试验,杂志文章
doi：10.1016/j.bandc.2004.02.041
更新日期：2004-07-01 00:00:00
abstract：:Selective attention is a dynamic process that rapidly shifts processing resources to information that is most relevant to our goals. Although individuals often show spatial biases in attention, these biases can be modified by both long-term factors, such as musical training, or by momentary changes in the auditory con...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2018.06.006
更新日期：2018-08-01 00:00:00
abstract：:We describe a patient with a deficit in imagery ability, following a left posterior cerebral artery infarction and possible anoxic episode. This deficit was inferred from the patient's performance on several tasks, including one in which normal adults are known to rely on imagery and two that tested imagery nonverball...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/0278-2626(88)90046-2
更新日期：1988-10-01 00:00:00
abstract：:Previous research has shown that imagined perspective rotations elicit spatial and low-level cortical motor areas of the brain when participants rely on knowledge of their physical body, or body percept (Wraga, Flynn, Boyle, & Evans, 2010). The current study used functional magnetic resonance imaging (fMRI) to investi...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2010.07.005
更新日期：2010-12-01 00:00:00
abstract：:Some studies of the event-related potentials demonstrated a reduction of the voluntary component P3 (P300 or P3b) in youngsters with the attention deficit/hyperactivity disorder (ADHD) or in conduct disorders (CD), and a reduction of the automatic processing component, mismatch negativity, in patients with both ADHD a...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2005.09.015
更新日期：2006-02-01 00:00:00
abstract：:This study investigated whether the semantic and episodic processes underlying the old/new effect can be dissociated by analyzing the spatial and temporal characteristics of event-related potentials (ERPs) evoked by unfamiliar face stimuli during direct and indirect memory tests. The ERP old/new effects obtained inclu...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:Earlier studies suggest that interhemispheric processing increases the processing power of the brain in cognitively complex tasks as it allows the brain to divide the processing load between the hemispheres. We report two experiments suggesting that this finding does not generalize to word-picture pairs: they are proc...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/s0278-2626(03)00054-x
更新日期：2003-07-01 00:00:00
abstract：:In the present study in 20 healthy subjects, event-related potentials (ERPs) were used to investigate the identification of picture stimuli. Each of 36 landscape pictures and 36 scrambled pictures was presented by a tachistoscope repeatedly until the subject made an identification response. Presentation of one picture...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1006/brcg.1996.0074
更新日期：1996-12-01 00:00:00
abstract：:Valence-specific laterality effects have been frequently obtained in facial emotion perception but not in vocal emotion perception. We report a dichotic listening study further examining whether valence-specific laterality effects generalise to vocal emotions. Based on previous literature, we tested whether valence-sp...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2012.03.001
更新日期：2012-07-01 00:00:00
abstract：:When we learn to make one motor response to one visual stimulus and a different motor response to another, representations of these stimulus-response associations must be maintained to efficiently transduce perception into action. When an irrelevant distractor is presented adjacent to a target stimulus, interference i...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1006/brcg.1998.1008
更新日期：1998-08-01 00:00:00
abstract：:Pseudoneglect is a slight but consistent leftward attentional bias commonly observed in healthy young populations, purportedly explained by right hemispheric dominance. It has been suggested that normal aging might be associated with a decline of the right hemisphere. According to this hypothesis, a few studies have s...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2011.04.002
更新日期：2011-08-01 00:00:00
abstract：:A face-recognition task involving monocular presentation of laterally displaced stimuli yielded a nasal hemiretinal advantage for reaction time for correct identifications, but a temporal hemiretinal advantage for accuracy (d'). These hemiretinal effects, in conjunction with eye dominance, could in principle distort o...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/0278-2626(83)90026-x
更新日期：1983-01-01 00:00:00
abstract：:Certain susceptibility factors, such as genetic variants or specific physiological responses to stress, can dictate the effects of stress on learning and memory. Here, we examined the influence of the BclI polymorphism of the glucocorticoid receptor gene on the time-dependent effects of pre-learning stress on long-ter...
journal_title：Brain and cognition
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.bandc.2018.05.012
更新日期：2019-07-01 00:00:00
abstract：:Previous research has attributed to the right hemisphere (RH) a key role in eliciting false memories to visual emotional stimuli. These results have been explained in terms of two right-hemisphere properties: (i) that emotional stimuli are preferentially processed in the RH and (ii) that visual stimuli are represented...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2014.07.002
更新日期：2014-10-01 00:00:00
abstract：:Two experiments are reported which investigate hemispheric processing in an object decision task. Experiment 1 used 40 pictures of objects, and 40 pictures of nonobjects, and subjects decided manually whether each lateralized stimulus represented an object. Results indicated an interaction between visual field and res...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/0278-2626(92)90045-n
更新日期：1992-07-01 00:00:00
abstract：:A 53-year-old right-handed woman had an extensive lesion in the left hemisphere due to an infarction caused by vasospasm secondary to subarachnoid bleeding. She exhibited persistent expressive-vocal amusia with no symptoms of aphasia. Evaluation of the patient's musical competence using the Montreal Battery for Evalua...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2016.01.003
更新日期：2016-03-01 00:00:00
abstract：:This study tested the prediction that the error-related negativity (ERN), a physiological measure of error monitoring, would be enhanced in anxious individuals, particularly in conditions with threatening cues. Participants made gender judgments about faces whose expressions were either happy, angry, or neutral. Repli...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2007.03.006
更新日期：2007-08-01 00:00:00
abstract：:In this paper an attempt was made to describe the basic principles and procedures involved in recording, noninvasively, magnetic fields from the surface of the head and estimating the intracranial sources that give rise to these fields, presumably the same ones that result in time-varying voltages in the scalp that ar...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1006/brcg.1995.1026
更新日期：1995-04-01 00:00:00
abstract：:A brain model is proposed which describes its structural organization and the related functions as compartments organized in time and space. On a molecular level the negative feedback loops of clock-controlled genes are interpreted as compartments. This spatio-temporal operational principle may also work on the cellul...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/s0278-2626(03)00043-5
更新日期：2003-04-01 00:00:00
abstract：:Normal old adults and patients in an early phase of Alzheimer's disease (AD) were presented with photographs of common objects under two different encoding conditions: naming and naming along with category decisions. Memory was assessed with free recall, category cued recall, and recognition. For both groups, recognit...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1006/brcg.1997.0916
更新日期：1997-07-01 00:00:00
abstract：:Executive and memory dysfunctions are among the most frequently reported deficits following a ruptured aneurysm of the anterior communicating artery (ACoA). In order to study the impact of the dysexecutive syndrome on episodic and semantic memory, the data obtained from 59 ACoA patients were examined retrospectively. ...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/s0278-2626(03)00142-8
更新日期：2003-11-01 00:00:00
abstract：:Aging is characterized by a cognitive decline of fluid abilities and is also associated with electrophysiological changes. The vascular hypothesis proposes that brain is sensitive to vascular dysfunction which may accelerate age-related brain modifications and thus explain age-related neurocognitive decline. To test t...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2018.02.001
更新日期：2018-06-01 00:00:00
abstract：:A patient with amnesia subsequent to herpes encephalitis was assessed on a series of tasks which have been shown to result in normal or near normal performance by amnesic subjects. On a pursuit rotor learning task, our patient performed normally, and continued to show evidence of memory for the skill after a period of...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/0278-2626(88)90040-1
更新日期：1988-08-01 00:00:00
abstract：:The two hemispheres of the brain often perform complementary computations and make unique contributions to task performance. This study examines the interaction of linguistic (left hemisphere) and prosodic (right hemisphere) information in speech processing. An individual differences approach is used in which interfer...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1006/brcg.1997.0949
更新日期：1998-03-01 00:00:00
abstract：:Theories of category-specific effects on visual object identification predict easier identification of non-living than living objects. The Sensory-Functional theory credits greater representational weighting of the visual properties of living objects independent of greater weighting of the functional properties of non...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2006.06.002
更新日期：2006-12-01 00:00:00
abstract：:The purpose of this study was to determine whether the severity of visual hemineglect follows a unimodal or bimodal frequency distribution. Seventy-seven consecutive patients with a unilateral cerebral infarct (36 left- and 41 right-hemisphere lesions) were evaluated. The severity of neglect was measured as the number...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1006/brcg.1993.1010
更新日期：1993-03-01 00:00:00
abstract：:The aim of this study was to determine the influence of sex on hemispheric asymmetry and cooperation in a face recognition task. We used a masked priming paradigm in which the prime stimulus was centrally presented; it could be a bisymmetric face or a hemi-face in which facial information was presented in the left or ...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2010.04.008
更新日期：2010-08-01 00:00:00
abstract：:The voice is a marker of a person's identity which allows individual recognition even if the person is not in sight. Listening to a voice also affords inferences about the speaker's emotional state. Both these types of personal information are encoded in characteristic acoustic feature patterns analyzed within the aud...
journal_title：Brain and cognition
pub_type： 杂志文章
doi：10.1016/j.bandc.2008.06.003
更新日期：2009-02-01 00:00:00
