Real-time imaging of neural activity during binaural interaction in the guinea pig auditory cortex

1997 ◽  
Vol 181 (6) ◽  
pp. 607-614 ◽  
Author(s):  
Y. Hosokawa ◽  
J. Horikawa ◽  
M. Nasu ◽  
I. Taniguchi
Keyword(s):  
Guinea Pig ◽  
Auditory Cortex ◽  
Real Time ◽  
Neural Activity ◽  
Real Time Imaging ◽  
Binaural Interaction

Optical imaging of binaural interaction in multiple fields of the guinea pig auditory cortex

Neuroreport ◽  
2004 ◽  
Vol 15 (7) ◽  
pp. 1093-1097 ◽  
Author(s):  
Yutaka Hosokawa ◽  
Shunji Sugimoto ◽  
Michinori Kubota ◽  
Ikuo Taniguchi ◽  
Junsei Horikawa
Keyword(s):  
Guinea Pig ◽  
Auditory Cortex ◽  
Optical Imaging ◽  
Binaural Interaction

Optical imaging of neural activity to vocalized sounds in the guinea‐pig auditory cortex

2006 ◽  
Vol 120 (5) ◽  
pp. 3122-3122
Author(s):  
Junsei Horikawa ◽  
Takashi Hatta ◽  
Shunji Sugimoto ◽  
Yutaka Hosokawa ◽  
Michinori Kubota
Keyword(s):  
Guinea Pig ◽  
Auditory Cortex ◽  
Optical Imaging ◽  
Neural Activity

A system for real-time imaging of neural activity

1991 ◽  
Vol 16 ◽  
pp. 176
Author(s):  
Michinori Ichikawa ◽  
Jin Murayama ◽  
Toshio Iijima ◽  
Gen Matsumoto
Keyword(s):  
Real Time ◽  
Neural Activity ◽  
Real Time Imaging

scholarly journals Biphasic Changes in Tissue Partial Pressure of Oxygen Closely Related to Localized Neural Activity in Guinea Pig Auditory Cortex

2003 ◽  
Vol 23 (9) ◽  
pp. 1075-1084 ◽  
Author(s):  
Kazuto Masamoto ◽  
Tetsuro Omura ◽  
Naosada Takizawa ◽  
Hirosuke Kobayashi ◽  
Takusige Katura ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Guinea Pig ◽  
Auditory Cortex ◽  
Partial Pressure ◽  
Neural Activity ◽  
Functional Brain Imaging ◽  
Optical Recording ◽  
Partial Pressure Of Oxygen ◽  
Functional Brain

An understanding of the local changes in cerebral oxygen content accompanying functional brain activation is critical for making a valid signal interpretation of hemodynamic-based functional brain imaging. However, spatiotemporal relations between changes in tissue partial pressure of oxygen (Po2) and induced neural activity remain incompletely understood. To characterize the local Po2 response to the given neural activity, the authors simultaneously measured tissue Po2 and neural activity in the identical region of guinea pig auditory cortex with an oxygen microelectrode (tip < 10 μm) and optical recording with voltage-sensitive dye (RH 795). In addition, a laser displacement gauge and a laser-Doppler flowmeter were used to monitor the spatial displacement and regional cerebral blood flow, respectively, in the Po2 measurement region. In the activated region, tissue Po2 initially decreased during the ∼3seconds after the onset of acoustic stimuli, and then increased during the next ∼5 seconds. Such biphasic changes are consistently found in cortical layers I to IV. In addition, amplitude of the biphasic change was closely related to detected peak height of the optical signal changes. The results suggest that the initial decrease in tissue Po2 is coupled to the induced neural activity and depends on response time of local increase in cerebral blood flow.

Spatiotemporal dynamics of neural activity related to auditory induction in the core and belt fields of guinea-pig auditory cortex

Neuroreport ◽  
2012 ◽  
Vol 23 (8) ◽  
pp. 474-478 ◽  
Author(s):  
Michinori Kubota ◽  
Akihiro Miyamoto ◽  
Yutaka Hosokawa ◽  
Shunji Sugimoto ◽  
Junsei Horikawa
Keyword(s):  
Guinea Pig ◽  
Auditory Cortex ◽  
Neural Activity ◽  
Spatiotemporal Dynamics ◽  
The Core ◽  
Auditory Induction
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