Three-dimensional spatial cognition: information in the vertical dimension overrides information from the horizontal.
|Abstract||Fish live in three-dimensional environments, through which they swim with three translational and three rotational degrees of freedom. Navigating through such environments is recognised as a difficult problem, yet fish, and other animals that swim and fly, achieve this regularly. Despite this, the vast majority of research has considered how animals navigate horizontally from place to place and has ignored the vertical component. Here, we test th ... [truncated at 450 characters in length]|
|Author||Holbrook, RI; Burt De Perera, T;|
|Key phrase||Animals Cognition Fishes Maze Learning Orientation Space Perception Vertical Dimension|
Cases with mild cognitive impairment and Alzheimer's disease fail to benefit from repeated exposure to episodic memory tests as compared with controls.
|Abstract||Memory tests may be predictive for cognitive decline. We investigated the sensitivity and change in performance over time of the Hopkins Verbal Learning Test (HVLT) and the Mini-Mental Status Examination (MMSE) for Mild Cognitive Impairment (MCI) and Alzheimer's Disease (AD) when compared to cognitively healthy controls. Participants included elderly controls (n = 54), MCI (n = 19) and AD cases (n = 28) from OPTIMA. The MMSE and the HVLT (version ... [truncated at 450 characters in length]|
|Author||Schrijnemaekers, AM; de Jager, CA; Hogervorst, E; et al|
|Key phrase||Aged Aged, 80 and over Alzheimer Disease Cognition Disorders Cohort Studies Cross-Sectional Studies Female Humans Linear Models Male Memory Mental Status Schedule Neuropsychological Tests ROC Curve Sensitivity and Specificity Time Factors Verbal Learning|
Detection of MCI in the clinic: evaluation of the sensitivity and specificity of a computerised test battery, the Hopkins Verbal Learning Test and the MMSE.
|Abstract||the sensitive detection of mild cognitive impairment (MCI) in older adults is an important problem that requires objective assessment. We evaluated whether the computerised cognitive test battery, CogState, was as sensitive to MCI as two well-validated 'paper-and-pencil' tests, the Hopkins Verbal Learning Test (HVLT) and the Mini-Mental Status Examination (MMSE).|
|Author||de Jager, CA; Schrijnemaekers, AC; Honey, TE; et al|
|Key phrase||Aged Aged, 80 and over Case-Control Studies Cognition Disorders Computers Female Follow-Up Studies Geriatric Assessment Humans Male Mental Status Schedule Neuropsychological Tests Predictive Value of Tests Psychiatric Status Rating Scales Questionnaires ROC Curve Verbal Learning|
Expected value, reward outcome, and temporal difference error representations in a probabilistic decision task.
|Abstract||In probabilistic decision tasks, an expected value (EV) of a choice is calculated, and after the choice has been made, this can be updated based on a temporal difference (TD) prediction error between the EV and the reward magnitude (RM) obtained. The EV is measured as the probability of obtaining a reward x RM. To understand the contribution of different brain areas to these decision-making processes, functional magnetic resonance imaging activat ... [truncated at 450 characters in length]|
|Author||Rolls, ET; Mccabe, C; Redoute, J;|
|Key phrase||Decision Making Frontal Lobe Humans Learning Probability Learning Psychomotor Performance Research Design Reward Thinking Time Factors|
State-dependent valuation learning in fish: banded tetras prefer stimuli associated with greater past deprivation.
|Abstract||Humans and some birds and insects sometimes prefer alternatives associated with greater past cost or need, sometimes affording losses. It has been proposed that this is widespread because learning may include knowledge about both the physical properties of alternatives and state-dependent fitness gains. We examine the phenomenon for the first time in a fish, the banded tetra (Astyanax fasciatus). During training we paired two different color cues ... [truncated at 450 characters in length]|
|Author||Aw, JM; Holbrook, RI; Burt De Perera, T; et al|
|Key phrase||Animals Color Conditioning, Operant Cues Decision Making Fishes Food Food Deprivation Hunger Learning Psychomotor Performance Reinforcement (Psychology) Reward|