The hippocampus has long been recognized as important for the formation of long-term memory. Recent work has suggested that the hippocampus might also be important for certain kinds of spatial operations, as in constructing scenes, shifting perspective, or perceiving the geometry of scenes and their boundaries. We explored this proposal using a…

The purpose of this study was to examine gender differences in self-reported symptomatology and working memory (visuospatial and auditory) in college students with Attention Deficit Hyperactivity Disorder (ADHD). Forty-seven college students with ADHD and 44 non-affected control participants completed two self-report questionnaires and six tests…

The present study investigated the general cognitive determinants of alphabetic letter knowledge. It involved 60 French kindergarten children (mean age: five years six months). Two test batteries were used: the CMS to evaluate general cognitive abilities (memory, attention, and learning), and the LKT to assess letter knowledge and its various…

New editions of the Wechsler Adult Intelligence and Memory scales are now available. Yet, given the significant changes in these new releases and the skepticism that has met them, independent evidence on their psychometric properties is much needed but currently lacking. We administered the WAIS-IV and the Older Adult version of the WMS-IV to 145…

Autobiographical memory difficulties have been widely reported in adults with autism spectrum disorder (ASD). The aim of the current study was to explore the potential correlates of autobiographical memory performance (including depressed mood, rumination, working memory and theory of mind) in adults with ASD, relative to a group of typical adults…

There is a plethora of research suggesting that daily stressors and fatigue can have a significant effect on learning and various cognitive functions in young adults. Little is known, however, about how these effects impact learning and other neurocognitive functions in students with learning challenges when compared to their counterparts without…

JS is a highly able, well-educated 37 year old man with Asperger syndrome. A recent qualitative paper (Boucher, 2007) described his self-report of verbal and visual memory difficulties. The present paper used the WMS-III to compare the memory profile of JS to that of the adults with HFA in the Williams et al. (2005) WMS-III paper. Results show…

The working memory (WM) construct is conceptualized similarly across domains of psychology, yet the methods used to measure WM function vary widely. The present study examined the relationship between WM measures used in the laboratory and those used in applied settings. A large sample of undergraduates completed three laboratory-based WM measures…

Objectives: To investigate the presence of apathy symptoms in adolescents and adults with ADHD as a behavioral manifestation of underlying motivational deficits and to determine whether apathy symptoms were associated with a specific neuropsychological profile. Method: A total of 38 ADHD participants (28 of the combined subtype [ADHD/C] and 10 of…

Because of ongoing neuromaturation, youth with chronic alcohol/substance use disorders (AUD/SUD) are at risk for cognitive decrements during young adulthood. We prospectively examined cognition over 10 years based on AUD/SUD history. Youth (N = 51) with no AUD/SUD history (n = 14), persisting AUD/SUD (n = 18), or remitted AUD/SUD (n = 19) were…

Intelligence tests are usually part of the assessment battery for the diagnosis of adults with learning disabilities (LD) and attention deficit hyperactivity disorder (ADHD). Professionals must ensure that inferences drawn from such test scores are equivalent across populations with and without disabilities. Examination of measurement equivalence…

Objectives: To demonstrate that high IQ adults diagnosed with ADHD suffer from executive function (EF) impairments that: a) can be identified with a combination of standardized measures and self-report data; and b) occur more commonly in this group than in the general population. Method: 157 ADHD adults with IQ greater than or equal to 120 were…

Wechsler Memory Scale Memory Quotient (WMS MQ) 12 points below Wechsler Adult Intelligence Scale Full-Scale IQ (WAIS FSIQ) may indicate memory impairment. Investigated the relation of FSIQ to MQ when the Wechsler Adult Intelligence Scale-Revised rather than the WAIS is used. Discrepancy between FSIQ and MQ occurred less often with WAIS-R than with…

A comparison of the Rivermead Behavioural Memory Test (B. Wilson, 1987) and the Wechsler Memory Scale--Revised conducted with 20 neurotoxin-exposed and 20 unexposed adults finds that the two tests do not differ significantly in their relationships to estimates of everyday memory, and using both tests does not improve prediction of memory function.…

The Wechsler Memory Scale--Revised (D. Wechsler, 1987) and the Memory Assessment Scales (J. Williams, 1991) were administered to 30 head-injury patients, and results were compared across four dimensions of memory. Results suggest that these scales measure different abilities and are not comparable tests. (SLD)