Nata Technologies

ISMRM Annual Meeting & Exhibition in Toronto, Canada

super-admin — Fri, 27 Nov 2020 19:12:38 +0000

NataTech exhibition booth

The International Society for Magnetic Resonance in Medicine (ISMRM) is a multi-disciplinary nonprofit association that promotes innovation, development, and application of magnetic resonance techniques in medicine and biology throughout the world.

ISMMRM Annual Meeting & Exhibition

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ISMRM Annual Meeting & Exhibition in Honolulu, HI USA

super-admin — Fri, 27 Nov 2020 19:11:01 +0000

NataTech exhibition booth

ISMMRM Annual Meeting & Exhibition

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ISMRM Annual Meeting & Exhibition in Berlin, Germany

super-admin — Fri, 27 Nov 2020 19:09:05 +0000

NataTech exhibition booth

ISMMRM Annual Meeting & Exhibition

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ISMRM 20th Annual Meeting & Exhibition in Melbourne, Australia

super-admin — Fri, 27 Nov 2020 18:59:04 +0000

NataTech exhibition booth

ISMMRM 20th Annual Meeting & Exhibition

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ISMRM 27th Annual Meeting & Exhibition in Montréal, QC, Canada

super-admin — Mon, 09 Nov 2020 18:35:29 +0000

ISMRM 27th Annual Meeting & Exhibition

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Efects of Acute Aerobic Exercise on Response Inhibition in Adult Patients with ADHD

super-admin — Sat, 07 Nov 2020 18:53:35 +0000

Experimental task. Te experimental paradigm was programmed using Cogent 2000 v125 (http://www.
vislab.ucl.ac.uk/cogent.php) and Matlab R2015b (Te MathWorks, Inc.) and was projected onto a screen and
presented to the participants in the scanner through a mirror on the head coil. Te distance from the eyes of the
participants to the screen was 50cm. Stimuli were white and displayed on a black background. An MR-compatible
keypad (NAtA Technologies, Coquitlam, Canada) was used to respond with the right hand (see also31,50).
To assess the participants’ ability to inhibit a prepotent response and to sustain attention, a Go/No-go task as
described in Mehren et al.50 was utilized. Letters of the alphabet were presented in an event-related design. Each
trial started with the presentation of a single letter for 0.25sec, followed by a variable post stimulus interval during
which a fxation cross was visible. Trial duration was either 2, 6, or 8sec, with predominantly shorter trials (mean
trial length=3.5 sec). Participants were instructed to respond to every letter (Go trials) by pressing a key with
their right index fnger, except to the letter ‘X’ (No-go trials). Tey were told to focus on the fxation cross during
the entire experiment and to respond as fast and accurate as possible.

http://oops.uni-oldenburg.de/4555/1/2019-102_mehren_article_s41598-019-56332-y.pdf

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Neural substrates underlying motor skill learning in chronic hemiparetic stroke patients

super-admin — Sat, 07 Nov 2020 18:51:44 +0000

Prior to the fMRI activation runs, a resting-state run was acquired except in patients #1–4 and #17. The resting-state acquisition consisted of one single 6-min run during which the patients kept their eyes closed and had to avoid moving or falling asleep.

Then, the patients performed two consecutive activation runs of motor skill learning with their paretic upper limb, using a MR-compatible mouse (NAtA Technologies, Canada). Visual feedback was projected on a screen, which was viewed via a mirror placed on the head coil. As described in a previous study (Lefebvre et al., 2012), each run (duration 8 min 41 s; 172 volumes) contained a REST condition (fixation cross) and three experimental conditions: LEARNING, EASY, and REPLAY. LEARNING required performing the motor skill learning paradigm described below. EASY required moving the cursor back and forth between two horizontal or vertical targets, without speed or accuracy constraint. This condition was designed to explore brain activation related to simple movement execution under visual control. During REPLAY, a video clip of the last LEARNING performance was displayed, and the patients were instructed to follow the cursor’s displacement with their eyes without moving the hand. The REPLAY condition was designed to isolate activation related to visual and oculomotor processes.

https://www.frontiersin.org/articles/10.3389/fnhum.2015.00320/full

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Automatic and fast encoding of representational uncertainty underlies probability distortion

super-admin — Sat, 07 Nov 2020 18:49:56 +0000

Subjects were seated approximately 86 cm in front of a projection screen (Panasonic PT-DS12KE: 49.6 × 37.2 cm, 1024 × 768 pixels, 60-Hz refresh rate) inside the magnetically shielded room. Stimuli were controlled by a Dell computer using Matlab and PsychToolbox-3 (Brainard, 1997; Pelli, 1997). Subjects’ behavioral responses were recorded by an MEG-compatible mouse system (FOM-2B-10B from Nata technologies) and their brain activities by a 306-channel MEG system (see MEG Acquisition and Preprocessing for details).

https://www.biorxiv.org/content/10.1101/2019.12.17.879684v1.full

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Intensity-Dependent Effects of Acute Exercise on Executive Function

super-admin — Sat, 07 Nov 2020 18:48:53 +0000

The experimental tasks were projected onto a screen and presented to the participants in the scanner through a mirror on the head coil using Cogent 2000 v125 (http://www.vislab.ucl.ac.uk/cogent.php) and Matlab R2015b (The MathWorks Inc.). The distance from the eyes of the participants to the screen was 50 cm. Stimuli were white and displayed on a black background. Participants used an MR-compatible keypad (NAtA Technologies, Coquitlam, Canada) to respond with their right hand.

https://www.hindawi.com/journals/np/2019/8608317/

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Combined expectancies: the role of expectations for the coding of salient bottom-up signals

super-admin — Sat, 07 Nov 2020 18:47:16 +0000

Stimuli were presented on a 22-in. Samsung SyncMaster monitor (spatial resolution 1680 X 1050; refresh rate 120 Hz) at a distance of 60 cm. A chin and forehead rest preserved the distance. The presentation of stimuli and response recording were controlled using PsychoPy psychology software for Python (Peirce 2007, 2008). Participants were provided with button response pads (NAtA Technologies) for each hand and responded by pressing the corresponding button on the button response pad with the left and right index fingers.

https://link.springer.com/article/10.1007/s00221-019-05710-z

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