Vision, tunnel

The explosion was due to a failure to heed warning signs. The high pressure in the reactor was an early warning, but the operator had another theory to explain it. He stuck to this theory until the evidence against it was overwhelming. This is known as a mind-set or tunnel vision. 

Cognitive "tunnel vision" This is also known as "hypothesis anchoring" because the worker tends to seek information which confirms the initially formulated hypothesis about the state of the process, and to disregard information which dis-confirms it. 

Cognitive "tunnel vision" A characteristic of human performance under stress. Information is sought that confirms the initial hypothesis about the state of the process while disregarding information that contradicts the h3q)othesis. 

Mindset Syndrome A stress-related phenomenon in which information that does not support a person s understanding of a situation is ignored. (See also Cognitive tunnel vision.)... 

A serious limitation of the STM technique so far is its lack of chemical sensitivity. Generally, STM is not specific for the elemental species in multi-component systems, though there are special cases where the direction of charge flow is well known as shown for the GaAs(llO) surface. The surface area which one is looking at by STM is typically quite small. The problem of how representative the obtained tunnel vision is, is at least partly solved by considerably increasing the total scan range of STM/SPM instruments. 

In our early designs, we indeed ignored the perfectly plausible regiochemical orientation shown as 3B, which could lead to a disaster. Furthermore, our tunnel vision was enhanced by the fact that all the synthetic approaches reported at the... 

Mild to Moderate — Immediate miosis (eye pain, headache behind the eyes, dim, blurred or tunnel vision), rhinorrhea, mild to severe mucous secretions and dyspnea. 

Matlack, K., Mothes, W., and Rapoport, T. (1998). Protein traslocation tunnel vision. 

Tremors, gingivitis, erethism (shyness, timidity, social phobia), HA, tunnel vision, salivation, ataxia... 

The duration of treatment for skin diseases is often longer than it is for malaria, and therefore, dose-related toxicities are important. The most serious toxicities are ophthalmological. Reversible alterations include ciliary body dysfunction and corneal changes with edema and deposits. Irreversible retinopathy also occurs however, it is less common with quinacrine than with the other two drugs. Toxicity may be asymptomatic, but the earliest symptoms are night blindness, scotoma, or tunnel vision. 

Mills, K.C. et al., The influence of stimulants, sedatives, and fatigue on tunnel vision risk factors for driving and piloting, Hum. Factors, 43, 310, 2001. 

Performance-on-Line is a software-based cognitive and psychomotor divided-attention task designed to evaluate tunnel vision, a rapid change in visual system activity in response to stress, that at elevated levels is associated with driving risk.67 The task was derived from the hardware-based Simulated Evaluation of Driver Impairment (SEDI) distributed by SEDICorp. SEDI was... 

Mills, K.C., Tunnel vision lifeline or killer Some research on why training to keep your cool is valuable, Law Order, 11, 80, 2000. 

What lingering effects has the mescaline experience had In fleeting moments and with greatly diminished intensity, I have felt the tunnel-vision phenomenon and the elasticity of the floor beneath me that I described above. It is as though... 

Muscle twitching Muffled hearing Tunnel vision Feeling uncoordinated Headaches Soreness in muscles Lower back pain Lump in the throat Exaggerated startle reaction Fatigue... 

Oxygen toxicity in the eye can cause tunnel vision by an effect on the retina (7) and, in neonates, retrolental fibroplasia (8) (SED-12, 242). 

Developmental toxicity and teratogenesis visual dysfunction (tunnel vision) cerebellar syndrome (ataxia) peripheral neuropathy chronic encephalopathy (cognitive dysfunction)... 

Although parents seem to have tunnel vision when it comes to the moods of their children, most were reported to be fairly open to treating depression with antidepressants. 

The target organ in mammals and birds is the central nervous system. Symptoms include tunnel vision, paresthesias, ataxia, dysarthria, and deafness. Phenyl- and alkoxyalkylmercurials are absorbed through the skin and... 

Tunnel vision (Figure 41.4) is associated with a late stage of glaucoma and some forms of retinitis pigmentosa. Glaucoma is caused by an increase in pressure in the fluid in the eye at an early stage... 

---