The intrusive speech quality model standardized by the ITU–T shows some limits in its quality predictions, especially in a wideband transmission context. They are mainly caused by strong differences in perceived quality when speech is transmitted over different telephone networks. Instrumental methods should provide reliable estimations of the integral speech quality over the entire perceptual ...

Dementia is a chronic and irreversible brain impairment characterised by significant cognitive deficits. Severe symptoms of the aforesaid disease interfere with normal life functions and daily activities. Dementia usually develops with advancing age, i.e. after the age of 85, and when it develops in people younger than age 65, it is referred to as early onset dementia. This paper presents a 53-...

Up to half of patients with ALS develop cognitive impairment during the course of the illness. Despite this, there is no simple tool for screening patients in the clinical setting. This study examines the sensitivity, specificity and accuracy of the ALS Cognitive Behavioral Screen (ALS-CBS). We administered the measure to 112 ALS patients, including 31 who also underwent comprehensive neuropsyc...

[Purpose] The purpose of the present study was to examine cognitive function in middle-aged and older adults regularly engaging in synchronized swimming-exercise. [Subjects and Methods] Twenty-three female synchronized swimmers ranging in age from 49 to 85 years were recruited for the present study. The duration of synchronized swimming experience ranged from 1 to 39 years. The control group co...

The Montreal Cognitive Assessment (MoCA) is a brief instrument developed for the screening of milder forms of cognitive impairment. The present study aims to assess the construct related validity of the MoCA through the establishment of the factorial, convergent, and discriminant related validities, and the reliability of data. In a Portuguese sample of 830 participants, several models were tes...

The present research investigated whether immediate metacognitive feedback on students’ help-seeking errors can help students acquire better help-seeking skills. The Help Tutor, an intelligent tutor agent for help seeking, was integrated into a commercial tutoring system for geometry, the Geometry Cognitive Tutor. Study 1, with 58 students, found that the real-time assessment of students’ help-...

Cognitive Diagnostic Assessment (CDA) is an alternative assessment which can give a clear picture of pupils’ learning process and cognitive structures to education stakeholders so that appropriate instructional strategies be designed tailored needs. Coincide with this function, the Ordered Multiple-Choice (OMC) items were incorporated into CDA developed in study. This paper describes developing...

Objective: To determine the diagnostic accuracy of the Mini-Mental State Examination combined to the Informant Questionnaire on Cognitive Decline in the Elderly for the identification of mild cognitive impairment. Method: 191 elderly subjects were assessed with the Mini-Mental State Examination, and their informants were assessed with the Informant Questionnaire on Cognitive Decline in the Elde...

BACKGROUND/AIMS Clinicians are increasingly being asked to provide their opinion on the decision-making capacity of older adults, while validated and widely available tools are lacking. We sought to identify an online cognitive screening tool for assessing mental capacity through the measurement of executive function. METHODS A mixed elderly sample of 45 individuals, aged 65 years and older, ...