Lesions of the prelimbic–infralimbic cortices in rats do not disrupt response selection processes but induce delay-dependent deficits: Evidence for a role in working memory?

1999 ◽  
Vol 113 (5) ◽  
pp. 941-955 ◽  
Author(s):  
Benoît Delatour ◽  
Pascale Gisquest-Verrier
Keyword(s):  
Working Memory ◽  
Response Selection ◽  
Selection Processes ◽  
Delay Dependent

Working memory, response selection, and effortful processing in rats with medial prefrontal lesions.

1994 ◽  
Vol 108 (5) ◽  
pp. 883-891 ◽  
Author(s):  
Sylvie Granon ◽  
Catherine Vidal ◽  
Catherine Thinus-Blanc ◽  
Jean-Pierre Changeux ◽  
Bruno Poucet
Keyword(s):  
Working Memory ◽  
Response Selection ◽  
Memory Response ◽  
Effortful Processing

scholarly journals Measurement Models for Visual Working Memory – A Factorial Model Comparison

2021 ◽  
Author(s):  
Klaus Oberauer
Keyword(s):  
Working Memory ◽  
Signal Detection ◽  
Visual Working Memory ◽  
Model Comparison ◽  
Response Selection ◽  
Activation Function ◽  
Three Dimensions ◽  
Selection Function ◽  
Measurement Models ◽  
Von Mises

Several measurement models have been proposed for data from the continuous-reproduction paradigm for studying visual working memory: The original mixture model (Zhang & Luck, 2008) and its extension (Bays, Catalao, & Husain, 2009); the interference measurement model (Oberauer, Stoneking, Wabersich, & Lin, 2017), and the target confusability competition model (Schurgin, Wixted, & Brady, 2020). This article describes a space of possible measurement models in which all existing models can be placed. The space is defined by three dimensions: (1) The choice of a activation function (von-Mises or Laplace), the choice of a response-selection function (variants of Luce’s choice rule or of signal detection theory), and whether or not memory precision is assumed to be a constant over manipulations affecting memory. A factorial combination of these three variables generates all possible models in the model space. Fitting all models to eight data sets revealed a new model as empirically most adequate, which combines a von-Mises activation function with a signal-detection response-selection rule. The precision parameter can be treated as a constant across many experimental manipulations, though it might vary with manipulations not yet explored. All modelling code and the raw data modelled are available on the OSF: osf.io/zwprv

Perceptual Dimensional Constraints in Response Selection Processes

1997 ◽  
Vol 32 (2) ◽  
pp. 128-181 ◽  
Author(s):  
Asher Cohen ◽  
Rachel Shoup
Keyword(s):  
Response Selection ◽  
Selection Processes

scholarly journals Effects of Working Memory Demand on Neural Mechanisms of Motor Response Selection and Control

2013 ◽  
Vol 25 (8) ◽  
pp. 1235-1248 ◽  
Author(s):  
Anita D. Barber ◽  
Brian S. Caffo ◽  
James J. Pekar ◽  
Stewart H. Mostofsky
Keyword(s):  
Working Memory ◽  
Inhibitory Control ◽  
Response Selection ◽  
Inferior Frontal Gyrus ◽  
Stimulus Response ◽  
Control Functions ◽  
Dorsolateral Prefrontal ◽  
Memory Representations ◽  
And Control ◽  
Inferior Frontal Junction

Inhibitory control commonly recruits a number of frontal regions: pre-supplementary motor area (pre-SMA), frontal eye fields (FEFs), and right-lateralized posterior inferior frontal gyrus (IFG), dorsal anterior insula (DAI), dorsolateral prefrontal cortex (DLPFC), and inferior frontal junction (IFJ). These regions may directly implement inhibitory motor control or may be more generally involved in executive control functions. Two go/no-go tasks were used to distinguish regions specifically recruited for inhibition from those that additionally show increased activity with working memory demand. The pre-SMA and IFG were recruited for inhibition in both tasks and did not have greater activation for working memory demand on no-go trials, consistent with a role in inhibitory control. Activation in pre-SMA also responded to response selection demand and was increased with working memory on go trials specifically. The bilateral FEF and right DAI were commonly active for no-go trials. The FEF was also recruited to a greater degree with working memory demand on go trials and may bias top–down information when stimulus–response mappings change. The DAI, additionally responded to increased working memory demand on both go and no-go trials and may be involved in accessing sustained task information, alerting, or autonomic changes when cognitive demands increase. DLPFC activation was consistent with a role in working memory retrieval on both go and no-go trials. The inferior frontal junction, on the other hand, had greater activation with working memory specifically for no-go trials and may detect salient stimuli when the task requires frequent updating of working memory representations.

Response-Selection-Related Parietal Activation during Number Comparison

2004 ◽  
Vol 16 (9) ◽  
pp. 1536-1551 ◽  
Author(s):  
Silke M. Göbel ◽  
Heidi Johansen-Berg ◽  
Tim Behrens ◽  
Matthew F. S. Rushworth
Keyword(s):  
Nonhuman Primates ◽  
Response Selection ◽  
Perceptual Task ◽  
Numerical Distance ◽  
Single Digit ◽  
Selection Processes ◽  
Number Comparison ◽  
Basic Stimulus ◽  
The Right ◽  
Double Digit

Neuroimaging studies of number comparison have consistently found activation in the intraparietal sulcus (IPS). Recently, it has been suggested that activations in the IPS vary with the distance between the numbers being compared. In number comparison, the smaller the distance between a number and the reference the longer the reaction time (RT). Activations in the right or left IPS, however, have also been related to attentional and intentional selection. It is possible, therefore, that activity in this region is a reflection of the more basic stimulus and response-selection processes associated with changes in RT. This fMRI experiment investigated the effect of numerical distance independently from RT. In addition, activations during number comparison of single-digit and double-digit stimuli were compared. During number comparison blocks, subjects had to indicate whether digits were greater or smaller than a reference (5 or 65). In control blocks, they were asked to perform a perceptual task (vertical line present/absent) on either numerical or nonnumerical stimuli. Number comparison versus rest yielded a large bilateral parietal-posterior frontal network. However, no areas showed more activation during number comparison than during the control tasks. Furthermore, no areas were more active during comparison of numbers separated by a small distance than comparisons of those separated by a large distance or vice versa. A left-lateralized parietal-posterior frontal network varied significantly with RT. Our findings suggest that magnitude and numerical-distance-related IPS activations might be difficult to separate from fundamental stimulus and response-selection processes associated with RT changes. As is the case with other parameters, such as space, magnitude may be represented in the context of response selection in the parietal cortex. In this respect, the representation of magnitude in the human IPS may be similar to the representation of magnitude in other nonhuman primates.

The Interrelations between Verbal Working Memory and Visual Selection of Emotional Faces

2010 ◽  
Vol 22 (6) ◽  
pp. 1189-1200 ◽  
Author(s):  
Alessandro Grecucci ◽  
David Soto ◽  
Raffaella Ida Rumiati ◽  
Glyn W. Humphreys ◽  
Pia Rotshtein
Keyword(s):  
Working Memory ◽  
Verbal Working Memory ◽  
Search Display ◽  
Visual Selection ◽  
Emotional Word ◽  
Neural Basis ◽  
Selection Processes ◽  
Orbital Gyrus ◽  
High Level ◽  
Selection Of

Working memory (WM) and visual selection processes interact in a reciprocal fashion based on overlapping representations abstracted from the physical characteristics of stimuli. Here, we assessed the neural basis of this interaction using facial expressions that conveyed emotion information. Participants memorized an emotional word for a later recognition test and then searched for a face of a particular gender presented in a display with two faces that differed in gender and expression. The relation between the emotional word and the expressions of the target and distractor faces was varied. RTs for the memory test were faster when the target face matched the emotional word held in WM (on valid trials) relative to when the emotional word matched the expression of the distractor (on invalid trials). There was also enhanced activation on valid compared with invalid trials in the lateral orbital gyrus, superior frontal polar (BA 10), lateral occipital sulcus, and pulvinar. Re-presentation of the WM stimulus in the search display led to an earlier onset of activity in the superior and inferior frontal gyri and the anterior hippocampus irrespective of the search validity of the re-presented stimulus. The data indicate that the middle temporal and prefrontal cortices are sensitive to the reappearance of stimuli that are held in WM, whereas a fronto-thalamic occipital network is sensitive to the behavioral significance of the match between WM and targets for selection. We conclude that these networks are modulated by high-level matches between the contents of WM, behavioral goals, and current sensory input.

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