A Temporal-Processing Mechanism for all Species?

1986 ◽  
Vol 28 (1-3) ◽  
pp. 134-144 ◽  
Author(s):  
Gary Rose
Keyword(s):  
Temporal Processing ◽  
Processing Mechanism

Rippled Depth Thresholds: Estimates Obtained by Discrimination From Rippled and Nonrippled Reference Signals

2019 ◽  
Vol 105 (6) ◽  
pp. 1198-1205
Author(s):  
Alexander Ya. Supin ◽  
Olga N. Milekhina ◽  
Dmitry I. Nechaev
Keyword(s):  
Frequency Analysis ◽  
Temporal Processing ◽  
Complex Spectrum ◽  
Pattern Processing ◽  
Reference Signals ◽  
Excitation Pattern ◽  
Processing Mechanisms ◽  
Processing Mechanism

The objective of the study was to better understand of contribution of excitation-pattern and temporal-processing mechanisms of frequency analysis to discrimination of complex-spectrum signals in various discrimination tasks. Using rippled-spectrum signals, the ripple depth thresholds were measured as functions of ripple density under conditions of rippled or non-rippled reference signals. With rippled reference signals, the ripple depth thresholds were as low as 0.11 at low ripple densities (2–3 cycles/oct) and rose to 1.0 at a ripple density of 8.9 cycles/oct. For non-rippled reference signals, ripple depth thresholds were nearly the same as for rippled reference signals at ripple densities of up to 7 cycles/oct; at ripple densities of 10 cycles/oct and higher, ripple depth thresholds rose slowly and reached 1.0 at a ripple density of 26 cycles/oct. The results hypothetically suggest contributions of the excitation-pattern processing and temporal-processing mechanisms of frequency analysis to discrimination of rippled signals. The excitation-pattern mechanism featured low depth thresholds at low ripple densities but could not function at ripple densities above 10 cycles/oct. The temporal-processing mechanism manifested at higher ripple densities and non-rippled reference stimuli.

The Varieties of Presence: Hierarchical Levels of Temporal Integration

2014 ◽  
Vol 2 (3) ◽  
pp. 325-338 ◽  
Author(s):  
Carlos Montemayor ◽  
Marc Wittmann
Keyword(s):  
Temporal Processing ◽  
Conscious Experience ◽  
Temporal Integration ◽  
Present Moment ◽  
Narrative Self ◽  
Time Consciousness ◽  
Hierarchical Levels ◽  
Processing Mechanism ◽  
Level Analysis ◽  
Over Time

We propose a hierarchical, three-level analysis of the present, in terms of simultaneity of events, experienced presence, and an extended mental presence containing the narrative self. The literature on the philosophy, psychology and neuroscience of time consciousness does not precisely distinguish these varieties of presence: first, a functional moment of perception in the range of milliseconds defines what is simultaneous and successive. Below a certain threshold events are processed as co-temporal. Secondly, the experienced moment of two to three seconds is related to a temporal-processing mechanism enabling conscious experience of the present moment. Thirdly, the continuity of experience is formed by working memory in the range of multiple seconds leading to the sense of mental presence over time, generating a temporal platform for the narrative self. These varieties of presence help solve puzzles pertaining to duration and simultaneity.

Physiological evidence for a temporal processing mechanism underlying voice‐onset time (VOT) encoding

2004 ◽  
Vol 115 (5) ◽  
pp. 2466-2466
Author(s):  
Mitchell Steinschneider ◽  
Yonatan I. Fishman ◽  
Igor O. Volkov ◽  
Matthew A. Howard
Keyword(s):  
Temporal Processing ◽  
Voice Onset Time ◽  
Onset Time ◽  
Physiological Evidence ◽  
Processing Mechanism

Frequency Selectivity and Temporal Processing in Friedreich's Ataxia

1983 ◽  
Vol 92 (3) ◽  
pp. 276-280 ◽  
Author(s):  
A. T. Cacace ◽  
S. Satya-Murti ◽  
C. T. Grimes
Keyword(s):  
Auditory System ◽  
Temporal Processing ◽  
Temporal Summation ◽  
Friedreich’S Ataxia ◽  
Friedreich's Ataxia ◽  
Frequency Selectivity ◽  
Tuning Curves ◽  
Processing Mechanism

We performed psychoacoustical tuning curves and measured temporal summation in two patients with Friedreich's ataxia to study aspects of frequency selectivity and temporal processing in the auditory system. In the majority of frequencies tested, normal psychoacoustical tuning curves and unimpaired temporal summation functions were obtained. These findings suggest that the processing mechanism responsible for these phenomena is intact.

Pspan: A New Tool for Assessing Pitch Temporal Processing and Patterning Capacity

2019 ◽  
Vol 28 (2) ◽  
pp. 322-332 ◽  
Author(s):  
Aurora J. Weaver ◽  
Jeffrey J. DiGiovanni ◽  
Dennis T. Ries
Keyword(s):  
Temporal Processing

Relation Between Level of Prefrontal Activity and Subject's Performance

1999 ◽  
Vol 13 (2) ◽  
pp. 117-125 ◽  
Author(s):  
Laurence Casini ◽  
Françoise Macar ◽  
Marie-Hélène Giard
Keyword(s):  
Brain Activity ◽  
Sensory Information ◽  
Practice Phase ◽  
Trained Subjects ◽  
Anagram Task ◽  
Economic Information ◽  
Long Duration ◽  
Level Of Activity ◽  
The Brain ◽  
Processing Mechanism

Abstract The experiment reported here was aimed at determining whether the level of brain activity can be related to performance in trained subjects. Two tasks were compared: a temporal and a linguistic task. An array of four letters appeared on a screen. In the temporal task, subjects had to decide whether the letters remained on the screen for a short or a long duration as learned in a practice phase. In the linguistic task, they had to determine whether the four letters could form a word or not (anagram task). These tasks allowed us to compare the level of brain activity obtained in correct and incorrect responses. The current density measures recorded over prefrontal areas showed a relationship between the performance and the level of activity in the temporal task only. The level of activity obtained with correct responses was lower than that obtained with incorrect responses. This suggests that a good temporal performance could be the result of an efficacious, but economic, information-processing mechanism in the brain. In addition, the absence of this relation in the anagram task results in the question of whether this relation is specific to the processing of sensory information only.

Sign in / Sign up

Export Citation Format

Share Document