An inexpensive microcomputer-based image digitizer

Tietjen, William J.

doi:10.3758/bf03202027

Cited by 7 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recording spider activities.---Spider activity was recorded using a computer-controlled digital camera (EDC 1000, Electrim Corporation, Princeton, NJ, USA). Methods were similar to those described by Tietjen (1980Tietjen ( , 1981Tietjen ( , 1982. During recording, spiders (except Frontinella ) were housed in plastic Petri dish arenas with a filter paper substratum.…”

Section: Methodsmentioning

confidence: 99%

Sublethal Exposure to a Neurotoxic Pesticide Affects Activity Rhythms and Patterns of Four Spider Species

Tietjen

Cady

2007

Journal of Arachnology

View full text Add to dashboard Cite

Four species from three families of spiders were exposed to sublethal concentrations of the neurotoxic pesticide malathion: Schizocosa ocreata (Hentz 1844), Rabidosa rabida (Walckenaer 1837), Frontinella communis (Hentz 1850), and Salticus scenicus (Clerck 1757). Spider activity was recorded using a proprietary computer vision system equipped with artificial intelligence routines. Exposure to malathion changed the spiders' propensity to move, levels and patterns of activity, and distance moved. Dosed spiders increased their activity between 12 and 40%, depending on the species. Continuous recordings for > 24 h revealed the peak activity for dosed R. rabida and S. scenicus was shifted ~ 1 h earlier than controls. Spiders exposed to malathion also significantly increased the distance they moved per locomotory bout. This is consistent with the action of an organophosphate neurotoxin acting as an acetylcholinesterase inhibitor. Thus, exposure to sublethal doses of malathion appears to affect the neural basis for these spider's normal diel periodicities, time budgets, and patterns of locomotion, probably reducing their efficiency as agents of biological control.

show abstract

Section: Methodsmentioning

confidence: 99%

Sublethal Exposure to a Neurotoxic Pesticide Affects Activity Rhythms and Patterns of Four Spider Species

Tietjen

Cady

2007

Journal of Arachnology

View full text Add to dashboard Cite

show abstract

“…Twenty-two behaviors were recorded according to the high-resolution ethogram (Tables 1 – 6 ). A MATLAB app, developed in MATLAB R2018a, based on the Behaviour Collect program 20 , was used for the recording (see section Code Availability for details). This application allows recording the observed behaviors using alphanumeric keys during the specified sampling interval.…”

Section: Methodsmentioning

confidence: 99%

High-resolution ethograms, accelerometer recordings, and behavioral time series of Japanese quail

Simian,

Rossi,

Marin

et al. 2024

Sci Data

View full text Add to dashboard Cite

Although many small vertebrates are capable of performing high-speed behaviors, most studies continue to focus on low-resolution temporal scales (>>1 s). Herein, we present video-recordings, behavior time series, and the computer software for video-analysis of Japanese quail within social groups. Home-boxes were monitored using both top and side video-cameras. High-resolution ethograms were developed for analyses. Pairs of females were assigned as either controls or using one of two methods for attachment of an accelerometer (patch or backpack). Behavior was recorded during 1 h on the first 2-days, sampled at 1 s intervals (days 1 and 2). On day 8, an unfamiliar male was placed in the home-box and its behavior was recorded during the first 10 min, sampled every 1/15 s. Male accelerometer recordings were also obtained. Video-recordings and resulting detailed high-resolution behavioral time series are valuable for reuse in comparative studies regarding the temporal dynamics of behavior within social environments. In addition, they are necessary for the assessment of novel machine learning algorithms that could be used for deciphering the output of accelerometer recordings.

show abstract

Automated platelet aggregation analysis using a digitizer

Kohler¹,

Zoltan²

1984

Journal of Pharmacological Methods

View full text Add to dashboard Cite

An inexpensive microcomputer-based image digitizer

Cited by 7 publications

References 1 publication

Sublethal Exposure to a Neurotoxic Pesticide Affects Activity Rhythms and Patterns of Four Spider Species

Sublethal Exposure to a Neurotoxic Pesticide Affects Activity Rhythms and Patterns of Four Spider Species

High-resolution ethograms, accelerometer recordings, and behavioral time series of Japanese quail

Automated platelet aggregation analysis using a digitizer

Contact Info

Product

Resources

About