Minimum audible movement angle in the horizontal plane as a function of stimulus frequency and bandwidth, source azimuth, and velocity

1992 ◽  
Vol 91 (3) ◽  
pp. 1624-1636 ◽  
Author(s):  
David W. Chandler ◽  
D. Wesley Grantham
Keyword(s):  
Horizontal Plane ◽  
Stimulus Frequency ◽  
Movement Angle

Activity of Ventroposterior Thalamus Neurons During Rotation and Translation in the Horizontal Plane in the Alert Squirrel Monkey

2008 ◽  
Vol 99 (5) ◽  
pp. 2533-2545 ◽  
Author(s):  
Vladimir Marlinski ◽  
Robert A. McCrea
Keyword(s):  
Horizontal Plane ◽  
Peak Velocity ◽  
Discharge Rate ◽  
Stimulus Frequency ◽  
Squirrel Monkeys ◽  
Response Amplitude ◽  
Whole Body ◽  
Power Functions ◽  
Stimulus Velocity ◽  
Rotational Response

The firing behavior of 107 vestibular-sensitive neurons in the ventroposterior thalamus was studied in two alert squirrel monkeys during whole body rotation and translation in the horizontal plane. Vestibular-sensitive neurons were distributed primarily along the anterior and posterior borders of ventroposterior nuclei; three clusters of these neurons could be distinguished based on their location and inputs. Eighty-four neurons responded to rotation; 66 (78%) of them responded to rotation only and 18 (22%) to both rotation and translation. Forty-one neurons were sensitive to linear translation; 23 (56%) of them responded to translation only. The population rotational response to 0.5-Hz sinusoids with a peak velocity of 40°/s showed a gain of 0.23 ± 0.15 spike·s−1·deg−1·s−1 and phase lagging behind the angular velocity by −9.3 ± 34.1°. Although rotational response amplitude increased with the stimulus velocity across the range 4–100°/s, the rotational sensitivity decreased with and was inversely proportional to the stimulus velocity. The rotational response amplitude and sensitivity increased with the stimulus frequency across the range 0.2–4.0 Hz. The population response to sinusoidal translation at 0.5 Hz and 0.1 g amplitude had a gain of 111.3 ± 53.7 spikes·s−1· g−1 and lagged behind stimulus acceleration by −71.9 ± 42.6°. Translational sensitivity decreased as acceleration increased and this was inversely proportional to the square root of the acceleration. Results of this study imply that changes in the discharge rate of vestibular-sensitive thalamic neurons can be approximated using power functions of the angular and linear velocity of spatial motion.

Stimulus frequency in continuous short-term recognition memory

1964 ◽  
Author(s):  
Arthur W. Melton ◽  
Harley Bernbach ◽  
Gerald M. Reicher
Keyword(s):  
Recognition Memory ◽  
Stimulus Frequency ◽  
Short Term

Preceding Stimulus Frequency-Dependent Potentiation of the Postrest Shortening of the Action Potential Duration in Rabbits.

2000 ◽  
Vol 41 (4) ◽  
pp. 481-492
Author(s):  
Naohiko Takahashi ◽  
Morio Ito ◽  
Shuji Ishida ◽  
Takao Fujino ◽  
Mikiko Nakagawa ◽  
...  
Keyword(s):  
Action Potential ◽  
Action Potential Duration ◽  
Stimulus Frequency ◽  
Frequency Dependent ◽  
Preceding Stimulus

Sound Localization in the Horizontal Plane in Patients with Supratentorial Cerebrovascular Disorders.

1995 ◽  
Vol 32 (1) ◽  
pp. 50-58
Author(s):  
Hirotaka TANAKA ◽  
Kenji HACHISUKA ◽  
Yoshinori IMAMURA ◽  
Hajime OGATA ◽  
Jinro INOUE
Keyword(s):  
Sound Localization ◽  
Horizontal Plane ◽  
Cerebrovascular Disorders
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