V1 V2 Hotspot
V1 V2 Hotspot - Related Videos
07:07
A Novel Scalp Acupuncture-based Method to Target the Hand Motor Hotspot for Non-invasive Brain Stimulation
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2025
This protocol introduces a scalp acupuncture-based method for localizing the primary motor cortex (M1) hotspot for the flexor digitorum superficialis (FDS) muscle and validates its effectiveness against the conventional C3 site.
04:24
Vitrification-based Cryopreservation: An Ultra-rapid Cooling Technique to Preserve Biological Specimens at Very Low Temperatures for Long-term Storage
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2023
In this video, we demonstrate an ultra-rapid cryo vitrification method for preserving biological samples. The method entails the use of a combination of cryoprotectants to protect the biological tissue from freezing damage by preventing intracellular ice crystal formation.
08:23
Single Droplet Digital Polymerase Chain Reaction for Comprehensive and Simultaneous Detection of Mutations in Hotspot Regions
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Cited by 7 •
2018
Here, we present a protocol to accurately quantify multiple genetic alterations of a target region in a single reaction using drop-off ddPCR and a unique pair of hydrolysis probes.
12:18
DC/DC Boost Converter
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2023
Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT. Boost converters provide a versatile solution to stepping up DC voltages in many applications where a DC voltage needs to be increased without the need to convert it to AC, using a transformer, and then rectifying the transformer output. Boost converters are step-up converters that use an inductor as an energy storage device that supports the output with additional energy in addition to the DC input...
10:26
DC/DC Buck Converter
0 Views •
2023
Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT. While it is simple to step up or down AC voltages and currents using transformers, stepping up or down DC voltages and currents in an efficient and regulated manner requires switching power converters. The DC/DC buck converter chops the input DC voltage using a series input switch, and the chopped voltage is filtered through the L-C low-pass filter to extract the average output voltage. The diode...
FAQs
Because the boundary marks a transition between two stages of visual cortical organization. V1 represents basic features such as contrast and orientation, while V2 supports further integration and analysis. Activity localized near this transition can therefore help researchers examine how visual information is organized as it moves from an initial cortical representation toward more integrated processing.
Visual information reaches the cortex through an ordered pathway: signals travel from the retina to the lateral geniculate nucleus, then to V1 and onward to V2. This sequence provides a framework for interpreting hotspot activity as part of visual processing across connected cortical areas rather than as an isolated measurement.
Its location can indicate how activity relates to the organization of the visual field across neighboring cortical areas. Researchers can use that spatial relationship to study visual cortical organization and connectivity, particularly where representations associated with V1 meet processing associated with V2. The hotspot therefore contributes anatomical and functional context to measurements of visual activity.
Researchers identify the region by measuring localized activity with functional imaging, electrophysiology, or both. They then relate the measured activity to the boundary between V1 and V2 and to the organization of the visual field. This approach supports mapping of cortical structure and activity without treating the hotspot as separate from the surrounding visual network.
These measurement approaches help researchers map where visual cortical activity occurs and examine its relationship to V1, V2, and their connectivity. The resulting observations can support studies of visual perception and sensory processing. Using such measurements also allows investigators to compare cortical activity patterns across different experimental or neurological conditions.
Researchers can use hotspot measurements to examine changes in sensory processing associated with neurological disorders or injury. Comparing activity and cortical organization in affected conditions with relevant observations can reveal how visual processing or connectivity changes. This makes the region useful for investigating altered perception and the functional consequences of disrupted visual cortical systems.