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Partial dissociation in the neural bases of VSTM and imagery in the early visual cortex.

Saad E, Wojciechowska M, Silvanto J - Neuropsychologia (2015)

Bottom Line: We hypothesized that any differential effect of TMS on VSTM and imagery would indicate that their neuronal bases differ at the level of EVC.The impact of TMS on sensitivity did not differ between VSTM and imagery, but did depend on whether the tasks were carried concurrently or alone.This study shows that neural processes associated with VSTM and imagery in the early visual cortex can be partially dissociated.

View Article: PubMed Central - PubMed

Affiliation: Brain Research Unit, O.V. Lounasmaa Laboratory, School of Science, Aalto University, 00076 Espoo, Finland; Institute of Behavioral Sciences, University of Helsinki, 00014 Helsinki, Finland. Electronic address: saad.ely@gmail.com.

No MeSH data available.


Related in: MedlinePlus

Mean (n=15) of median reaction time (ms) as a function of TMS site and contrast difficulty level. (A) VSTM in “alone” condition. (B) Imagery in the “alone” condition. (C) VSTM in “concurrent” condition. (D) Imagery in “concurrent” condition. TMS significantly slowed down reaction times for VSTM but not for imagery. The Error bars indicate SDs from which between-subjects variance has been removed (Loftus and Masson, 1994).
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f0015: Mean (n=15) of median reaction time (ms) as a function of TMS site and contrast difficulty level. (A) VSTM in “alone” condition. (B) Imagery in the “alone” condition. (C) VSTM in “concurrent” condition. (D) Imagery in “concurrent” condition. TMS significantly slowed down reaction times for VSTM but not for imagery. The Error bars indicate SDs from which between-subjects variance has been removed (Loftus and Masson, 1994).

Mentions: Fig. 3(a–d) shows the mean (n=15) median reaction time during VSTM and imagery conditions as a function of TMS site and contrast difficulty level.


Partial dissociation in the neural bases of VSTM and imagery in the early visual cortex.

Saad E, Wojciechowska M, Silvanto J - Neuropsychologia (2015)

Mean (n=15) of median reaction time (ms) as a function of TMS site and contrast difficulty level. (A) VSTM in “alone” condition. (B) Imagery in the “alone” condition. (C) VSTM in “concurrent” condition. (D) Imagery in “concurrent” condition. TMS significantly slowed down reaction times for VSTM but not for imagery. The Error bars indicate SDs from which between-subjects variance has been removed (Loftus and Masson, 1994).
© Copyright Policy - CC BY-NC-ND
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4542523&req=5

f0015: Mean (n=15) of median reaction time (ms) as a function of TMS site and contrast difficulty level. (A) VSTM in “alone” condition. (B) Imagery in the “alone” condition. (C) VSTM in “concurrent” condition. (D) Imagery in “concurrent” condition. TMS significantly slowed down reaction times for VSTM but not for imagery. The Error bars indicate SDs from which between-subjects variance has been removed (Loftus and Masson, 1994).
Mentions: Fig. 3(a–d) shows the mean (n=15) median reaction time during VSTM and imagery conditions as a function of TMS site and contrast difficulty level.

Bottom Line: We hypothesized that any differential effect of TMS on VSTM and imagery would indicate that their neuronal bases differ at the level of EVC.The impact of TMS on sensitivity did not differ between VSTM and imagery, but did depend on whether the tasks were carried concurrently or alone.This study shows that neural processes associated with VSTM and imagery in the early visual cortex can be partially dissociated.

View Article: PubMed Central - PubMed

Affiliation: Brain Research Unit, O.V. Lounasmaa Laboratory, School of Science, Aalto University, 00076 Espoo, Finland; Institute of Behavioral Sciences, University of Helsinki, 00014 Helsinki, Finland. Electronic address: saad.ely@gmail.com.

No MeSH data available.


Related in: MedlinePlus