scholarly journals Neuronal firing in the inferotemporal cortex of the monkey in a visual memory task

1982 ◽  
Vol 2 (3) ◽  
pp. 361-375 ◽  
Author(s):  
JM Fuster ◽  
JP Jervey
Keyword(s):  
Visual Memory ◽  
Memory Task ◽  
Neuronal Firing ◽  
Inferotemporal Cortex ◽  
Visual Memory Task

scholarly journals Single-exposure visual memory judgments are reflected in inferotemporal cortex

eLife ◽  
2018 ◽  
Vol 7 ◽  
Author(s):  
Travis Meyer ◽  
Nicole C Rust
Keyword(s):  
Visual Memory ◽  
Memory Task ◽  
Neural Responses ◽  
Inferotemporal Cortex ◽  
Single Exposure ◽  
Repetition Suppression ◽  
Time Patterns ◽  
Memory Signals ◽  
Behavioral Predictions ◽  
Visual Memory Task

Our visual memory percepts of whether we have encountered specific objects or scenes before are hypothesized to manifest as decrements in neural responses in inferotemporal cortex (IT) with stimulus repetition. To evaluate this proposal, we recorded IT neural responses as two monkeys performed a single-exposure visual memory task designed to measure the rates of forgetting with time. We found that a weighted linear read-out of IT was a better predictor of the monkeys’ forgetting rates and reaction time patterns than a strict instantiation of the repetition suppression hypothesis, expressed as a total spike count scheme. Behavioral predictions could be attributed to visual memory signals that were reflected as repetition suppression and were intermingled with visual selectivity, but only when combined across the most sensitive neurons.

scholarly journals Prediction of Visual Memorability with EEG Signals: A Comparative Study

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2694
Author(s):  
Sang-Yeong Jo ◽  
Jin-Woo Jeong
Keyword(s):  
Visual Memory ◽  
Human Subjects ◽  
Memory Task ◽  
Support Vector ◽  
Classification Models ◽  
Biological Feedback ◽  
Eeg Signals ◽  
Deep Convolutional Neural Networks ◽  
K Nearest Neighbors ◽  
Visual Memory Task

Visual memorability is a method to measure how easily media contents can be memorized. Predicting the visual memorability of media contents has recently become more important because it can affect the design principles of multimedia visualization, advertisement, etc. Previous studies on the prediction of the visual memorability of images generally exploited visual features (e.g., color intensity and contrast) or semantic information (e.g., class labels) that can be extracted from images. Some other works tried to exploit electroencephalography (EEG) signals of human subjects to predict the memorability of text (e.g., word pairs). Compared to previous works, we focus on predicting the visual memorability of images based on human biological feedback (i.e., EEG signals). For this, we design a visual memory task where each subject is asked to answer whether they correctly remember a particular image 30 min after glancing at a set of images sampled from the LaMemdataset. During the visual memory task, EEG signals are recorded from subjects as human biological feedback. The collected EEG signals are then used to train various classification models for prediction of image memorability. Finally, we evaluate and compare the performance of classification models, including deep convolutional neural networks and classical methods, such as support vector machines, decision trees, and k-nearest neighbors. The experimental results validate that the EEG-based prediction of memorability is still challenging, but a promising approach with various opportunities and potentials.

Immediate versus delayed visual memory task performance among schizophrenic patients and normal control subjects

1998 ◽  
Vol 79 (3) ◽  
pp. 255-265 ◽  
Author(s):  
Donald M Dougherty ◽  
Joel L Steinberg ◽  
Adel A Wassef ◽  
David Medearis ◽  
Don R Cherek ◽  
...  
Keyword(s):  
Task Performance ◽  
Normal Control ◽  
Visual Memory ◽  
Memory Task ◽  
Control Subjects ◽  
Schizophrenic Patients ◽  
Visual Memory Task

scholarly journals Single-exposure visual memory judgments are reflected in IT cortex

2017 ◽  
Author(s):  
Travis Meyer ◽  
Nicole C. Rust
Keyword(s):  
Visual Memory ◽  
Memory Task ◽  
Neural Responses ◽  
Single Exposure ◽  
Stimulus Repetition ◽  
Repetition Suppression ◽  
Time Patterns ◽  
Memory Signals ◽  
Behavioral Predictions ◽  
Visual Memory Task

AbstractOur visual memory percepts of whether we have encountered specific objects or scenes before are hypothesized to manifest as decrements in neural responses in inferotemporal cortex (IT) with stimulus repetition. To evaluate this proposal, we recorded IT neural responses as two monkeys performed a single-exposure visual memory task designed to measure the rates of forgetting with time. We found that a weighted linear read-out of IT was a better predictor of the monkeys’ forgetting rates and reaction time patterns than a strict instantiation of the repetition suppression hypothesis, expressed as a total spike count scheme. Behavioral predictions could be attributed to visual memory signals that were reflected as repetition suppression and were intermingled with visual selectivity, but only when combined across the most sensitive neurons.

scholarly journals Differential payoff and locus of selectivity in a visual memory task

1970 ◽  
Vol 7 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Frank Tolkmitt ◽  
Richard E. Christ
Keyword(s):  
Visual Memory ◽  
Memory Task ◽  
Visual Memory Task

scholarly journals Visual memory task for rats reveals an essential role for hippocampus and perirhinal cortex

2004 ◽  
Vol 101 (14) ◽  
pp. 5064-5068 ◽  
Author(s):  
G. T. Prusky ◽  
R. M. Douglas ◽  
L. Nelson ◽  
A. Shabanpoor ◽  
R. J. Sutherland
Keyword(s):  
Visual Memory ◽  
Essential Role ◽  
Memory Task ◽  
Perirhinal Cortex ◽  
Visual Memory Task

scholarly journals Locus of selectivity in a visual memory task using a color value indicator

1972 ◽  
Vol 12 (1) ◽  
pp. 65-68 ◽  
Author(s):  
David W. Martin ◽  
Eileen Richards
Keyword(s):  
Visual Memory ◽  
Memory Task ◽  
Color Value ◽  
Visual Memory Task

Influence of Cognitive Style on an Incidental Memory Task

1979 ◽  
Vol 48 (1) ◽  
pp. 195-198 ◽  
Author(s):  
R. Dale Walker ◽  
Michael R. O'Leary ◽  
Edmund F. Chaney ◽  
Thomas M. Fauria
Keyword(s):  
Cognitive Style ◽  
Mental Imagery ◽  
Verbal Memory ◽  
Visual Memory ◽  
Performance Test ◽  
Memory Task ◽  
Embedded Figures Test ◽  
Embedded Figures ◽  
Location Score ◽  
Visual Memory Task

The present study investigated the interaction between cognitive style, imagery, and memory. The Tactual Performance Test Location Score from the Halstead-Reitan battery was used as a measure of incidental tactual memory and mental imagery. The Group Embedded Figures Test was used to assess cognitive style. Results for 38 Caucasian males of mean age 49.9 yr. suggest that cognitive style is related to an individual's ability to perform a non-verbal, non-visual memory task. Further, cognitive style may be an important mediating variable influencing intrapersonal behaviors such as non-verbal memory and mental imagery.

Memory and metamemory in schizophrenia: a liberal acceptance account of psychosis

2008 ◽  
Vol 38 (6) ◽  
pp. 825-832 ◽  
Author(s):  
S. Moritz ◽  
T. S. Woodward ◽  
L. Jelinek ◽  
R. Klinge
Keyword(s):  
Cognitive Bias ◽  
False Recognition ◽  
Visual Memory ◽  
Memory Task ◽  
Control Group ◽  
False Alarms ◽  
Healthy Controls ◽  
Weak Response ◽  
Response Alternatives ◽  
Visual Memory Task

BackgroundIn previous studies we suggested that liberal acceptance (LA) represents a fundamental cognitive bias in schizophrenia and may explain why patients are more willing to accept weak response alternatives and display overconfidence in incorrect responses. The aim of the present study was to test a central assumption of the LA account: false alarms in schizophrenia should be particularly increased when the distractor–target resemblance is weak relative to a control group.MethodSixty-eight schizophrenia patients were compared to 25 healthy controls on a visual memory task. At encoding, participants studied eight complex displays, each consisting of a unique pairing of four stimulus attributes: symbol, shape, position and colour. At recognition, studied items were presented along with distractors that resembled the targets to varying degrees (i.e. the match between distractors and targets ranged from one to three attributes). Participants were required to make old/new judgements graded for confidence.ResultsThe hypotheses were confirmed: false recognition was increased for patients compared to controls for weakly and moderately related distractors only, whereas strong lure items induced similar levels of false recognition for both groups. In accordance with prior research, patients displayed a significantly reduced confidence gap and enhanced knowledge corruption compared to controls. Finally, higher neuroleptic dosage was related to a decreased number of high-confident ratings.ConclusionsThese data assert that LA is a core mechanism contributing to both enhanced acceptance of weakly supported response alternatives and metamemory deficits, and this may be linked to the emergence of positive symptomatology.

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