scholarly journals Neuronal Correlates of Tactile Working Memory in Prefrontal and Vibrissal Somatosensory Cortex

Cell Reports ◽  
2019 ◽  
Vol 27 (11) ◽  
pp. 3167-3181.e5 ◽  
Author(s):  
Vahid Esmaeili ◽  
Mathew E. Diamond
Keyword(s):  
Working Memory ◽  
Somatosensory Cortex ◽  
Tactile Working Memory

Facilitation of tactile working memory by top-down suppression from prefrontal to primary somatosensory cortex during sensory interference

2011 ◽  
Vol 219 (2) ◽  
pp. 387-390 ◽  
Author(s):  
Petri Savolainen ◽  
Synnöve Carlson ◽  
Robert Boldt ◽  
Tuomas Neuvonen ◽  
Henri Hannula ◽  
...  
Keyword(s):  
Working Memory ◽  
Somatosensory Cortex ◽  
Primary Somatosensory Cortex ◽  
Top Down ◽  
Tactile Working Memory

scholarly journals The Causal Role of the Prefrontal Cortex and Somatosensory Cortex in Tactile Working Memory

2017 ◽  
Vol 28 (10) ◽  
pp. 3468-3477 ◽  
Author(s):  
Di Zhao ◽  
Yong-Di Zhou ◽  
Mark Bodner ◽  
Yixuan Ku
Keyword(s):  
Working Memory ◽  
Prefrontal Cortex ◽  
Somatosensory Cortex ◽  
Causal Role ◽  
Tactile Working Memory

scholarly journals Persistent recruitment of somatosensory cortex during active maintenance of hand images in working memory

NeuroImage ◽  
2018 ◽  
Vol 174 ◽  
pp. 153-163 ◽  
Author(s):  
A. Galvez-Pol ◽  
B. Calvo-Merino ◽  
A. Capilla ◽  
B. Forster
Keyword(s):  
Working Memory ◽  
Somatosensory Cortex ◽  
Active Maintenance

scholarly journals Distributed neural networks of tactile working memory

2013 ◽  
Vol 107 (6) ◽  
pp. 452-458 ◽  
Author(s):  
Liping Wang ◽  
Mark Bodner ◽  
Yong-Di Zhou
Keyword(s):  
Neural Networks ◽  
Working Memory ◽  
Tactile Working Memory

Increasing top-down suppression from prefrontal cortex facilitates tactile working memory

NeuroImage ◽  
2010 ◽  
Vol 49 (1) ◽  
pp. 1091-1098 ◽  
Author(s):  
Henri Hannula ◽  
Tuomas Neuvonen ◽  
Petri Savolainen ◽  
Jaana Hiltunen ◽  
Yuan-Ye Ma ◽  
...  
Keyword(s):  
Working Memory ◽  
Prefrontal Cortex ◽  
Top Down ◽  
Tactile Working Memory

scholarly journals Tactile Working Memory Outside our Hands

i-Perception ◽  
10.1068/ic826 ◽  
2011 ◽  
Vol 2 (8) ◽  
pp. 826-826
Author(s):  
Takako Yoshida ◽  
Hong Tan ◽  
Charles Spence
Keyword(s):  
Working Memory ◽  
Tactile Working Memory

Validation of the Tactual Span in individuals with congenital and acquired blindness

2021 ◽  
pp. 026461962110449
Author(s):  
Eyal Heled ◽  
Or Oshri
Keyword(s):  
Working Memory ◽  
Assessment Tools ◽  
Auditory Modality ◽  
Test Results ◽  
Semantic Fluency ◽  
Cognitive Assessments ◽  
Tactile Working Memory ◽  
Blind Individuals ◽  
Specific Sequences ◽  
Fluency Test

Neuropsychological assessment tools for individuals with blindness are relatively scarce. In the current study, we assessed the validity of the Tactual Span, a task aimed at evaluating tactile working memory. During the task, the fingers of both hands are touched in specific sequences of ascending difficulty, which participants are asked to repeat in exact and reverse order. Twelve participants with congenital blindness and 13 with acquired blindness were examined alongside 18 sighted controls, matched to the experimental group with respect to age and education. Participants performed the Tactual Span and three additional tasks assessing working memory in the auditory modality, as well as a Semantic Fluency test. Results showed that the Tactual Span was significantly correlated with most of the other working memory measures, in all groups, but not with the Semantic Fluency test. In addition, the congenital and acquired blindness groups performed similarly to one another and better than sighted controls on most working memory tasks, but not on the Semantic Fluency test. Findings suggest that the Tactual Span is a feasible task for measuring tactile working memory in individuals with congenital and acquired blindness. Therefore, it can expand the cognitive assessment toolbox of professionals working with blind individuals and increase the strength of conclusions drawn from cognitive assessments in educational and vocational settings.

scholarly journals Exploring the cortical evidence of a sensory–discrimination process

2002 ◽  
Vol 357 (1424) ◽  
pp. 1039-1051 ◽  
Author(s):  
Ranulfo Romo ◽  
Adrián Hernández ◽  
Antonio Zainos ◽  
Carlos Brody ◽  
Emilio Salinas
Keyword(s):  
Working Memory ◽  
Somatosensory Cortex ◽  
Memory Trace ◽  
Premotor Cortex ◽  
Neural Representation ◽  
Mechanical Vibrations ◽  
Sensory Discrimination ◽  
Secondary Somatosensory Cortex ◽  
The Difference ◽  
A Chain

Humans and monkeys have similar abilities to discriminate the difference in frequency between two consecutive mechanical vibrations applied to their fingertips. This task can be conceived as a chain of neural operations: encoding the two consecutive stimuli, maintaining the first stimulus in working memory, comparing the second stimulus with the memory trace left by the first stimulus and communicating the result of the comparison to the motor apparatus. We studied this chain of neural operations by recording and manipulating neurons from different areas of the cerebral cortex while monkeys performed the task. The results indicate that neurons of the primary somatosensory cortex (S1) generate a neural representation of vibrotactile stimuli which correlates closely with psychophysical performance. Discrimination based on microstimulation patterns injected into clusters of S1 neurons is indistinguishable from that produced by natural stimuli. Neurons from the secondary somatosensory cortex (S2), prefrontal cortex and medial premotor cortex (MPC) display at different times the trace of the first stimulus during the working–memory component of the task. Neurons from S2 and MPC appear to show the comparison between the two stimuli and correlate with the behavioural decisions. These neural operations may contribute to the sensory–discrimination process studied here.

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