scholarly journals Detecting integration of top-down information using the mismatch negativity: Preliminary evidence from phoneme restoration

2020 ◽  
Keyword(s):  
Mismatch Negativity ◽  
Preliminary Evidence ◽  
Top Down ◽  
Phoneme Restoration

Top-Down Regulation of Left Temporal Cortex by Hypnotic Amusia for Rhythm:A Pilot Study on Mismatch Negativity

2014 ◽  
Vol 62 (2) ◽  
pp. 129-144 ◽  
Author(s):  
Enrico Facco ◽  
Mario Ermani ◽  
Patrizia Rampazzo ◽  
Valérie Tikhonoff ◽  
Marina Saladini ◽  
...  
Keyword(s):  
Pilot Study ◽  
Mismatch Negativity ◽  
Temporal Cortex ◽  
Top Down ◽  
Down Regulation

scholarly journals Relationships between a common Caribbean corallivorous snail and protected area status, coral cover, and predator abundance

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Elizabeth C. Shaver ◽  
Julianna J. Renzi ◽  
Maite G. Bucher ◽  
Brian R. Silliman
Keyword(s):  
Protected Areas ◽  
Coral Cover ◽  
Spiny Lobster ◽  
Florida Keys ◽  
Preliminary Evidence ◽  
Top Down ◽  
The Caribbean ◽  
Marine Protection ◽  
Coral Health ◽  
Coralliophila Abbreviata

Abstract As coral populations decline across the Caribbean, it is becoming increasingly important to understand the forces that inhibit coral survivorship and recovery. Predation by corallivores, such as the short coral snail Coralliophila abbreviata, are one such threat to coral health and recovery worldwide, but current understanding of the factors controlling corallivore populations, and therefore predation pressure on corals, remains limited. To examine the extent to which bottom-up forces (i.e., coral prey), top-down forces (i.e., predators), and marine protection relate to C. abbreviata distributions, we surveyed C. abbreviata abundance, percent coral cover, and the abundance of potential snail predators across six protected and six unprotected reefs in the Florida Keys. We found that C. abbreviata abundance was lower in protected areas where predator assemblages were also more diverse, and that across all sites snail abundance generally increased with coral cover. C. abbreviata abundance had strong, negative relationships with two gastropod predators—the Caribbean spiny lobster (Panulirus argus) and the grunt black margate (Anisotremus surinamensis), which may be exerting top-down pressure on C. abbreviata populations. Further, we found the size of C. abbreviata was also related to reef protection status, with larger C. abbreviata on average in protected areas, suggesting that gape-limited predators such as P. argus and A. surinamensis may alter size distributions by targeting small snails. Combined, these results provide preliminary evidence that marine protection in the Florida Keys may preserve critical trophic interactions that indirectly promote coral success via control of local populations of the common corallivorous snail C. abbreviata.

Mismatch negativity is unaffected by top-down predictive information

Neuroreport ◽  
2001 ◽  
Vol 12 (10) ◽  
pp. 2209-2213 ◽  
Author(s):  
Teemu Rinne ◽  
Sampo Antila ◽  
István Winkler
Keyword(s):  
Mismatch Negativity ◽  
Top Down ◽  
Predictive Information
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